./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 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/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.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-dev-59af5db-m [2024-02-02 09:17:57,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:17:57,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:17:57,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:17:57,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:17:57,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:17:57,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:17:57,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:17:57,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:17:57,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:17:57,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:17:57,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:17:57,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:17:57,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:17:57,361 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:17:57,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:17:57,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:17:57,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:17:57,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:17:57,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:17:57,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:17:57,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:17:57,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:17:57,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:17:57,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:17:57,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:17:57,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:17:57,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:17:57,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:17:57,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:17:57,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:17:57,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:17:57,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:57,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:17:57,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:17:57,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:17:57,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:17:57,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:17:57,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:17:57,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:17:57,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:17:57,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:17:57,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:17:57,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:17:57,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:17:57,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:17:57,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:17:57,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:17:57,654 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:17:57,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-02-02 09:17:58,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:17:59,011 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:17:59,012 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-02-02 09:17:59,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57e99527/90fd6276e73a48dca46d1418ae9b35c5/FLAG2e4000544 [2024-02-02 09:17:59,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57e99527/90fd6276e73a48dca46d1418ae9b35c5 [2024-02-02 09:17:59,036 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:17:59,036 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:17:59,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.yml/witness.yml [2024-02-02 09:17:59,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:17:59,182 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:17:59,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:59,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:17:59,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:17:59,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:59" (1/2) ... [2024-02-02 09:17:59,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2186159c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:59, skipping insertion in model container [2024-02-02 09:17:59,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:59" (1/2) ... [2024-02-02 09:17:59,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@735d0787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:59, skipping insertion in model container [2024-02-02 09:17:59,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:59" (2/2) ... [2024-02-02 09:17:59,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2186159c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59, skipping insertion in model container [2024-02-02 09:17:59,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:59" (2/2) ... [2024-02-02 09:17:59,192 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:17:59,223 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:17:59,224 INFO L101 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-02-02 09:17:59,225 INFO L101 nessWitnessExtractor]: Location invariant before [L702-L702] g == 0 [2024-02-02 09:17:59,225 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 1000) && (g == 1000) [2024-02-02 09:17:59,225 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 1000) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:59,225 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-02-02 09:17:59,226 INFO L101 nessWitnessExtractor]: Loop invariant at [L686-L696] (unsigned long )arg == 0UL [2024-02-02 09:17:59,226 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (((((0 <= g) && (g <= 999)) && (g <= 32767)) && (g % 999 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 999) [2024-02-02 09:17:59,226 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] (g == 999) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:59,226 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 1000) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:59,226 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L692] (g == 1000) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:59,226 INFO L101 nessWitnessExtractor]: Location invariant before [L695-L695] (unsigned long )arg == 0UL [2024-02-02 09:17:59,262 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:17:59,403 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2024-02-02 09:17:59,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:59,538 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:17:59,547 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2024-02-02 09:17:59,547 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:17:59,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:59,639 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:17:59,639 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59 WrapperNode [2024-02-02 09:17:59,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:59,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:59,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:17:59,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:17:59,645 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 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,655 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 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,673 INFO L138 Inliner]: procedures = 163, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-02-02 09:17:59,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:59,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:17:59,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:17:59,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:17:59,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,699 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-02-02 09:17:59,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:17:59,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:17:59,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:17:59,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:17:59,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (1/1) ... [2024-02-02 09:17:59,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:59,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:17:59,736 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) [2024-02-02 09:17:59,743 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 [2024-02-02 09:17:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-02-02 09:17:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-02-02 09:17:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:17:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:17:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:17:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:17:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:17:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:17:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:17:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:17:59,771 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:17:59,879 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:17:59,881 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:18:00,015 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:18:00,015 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:18:00,127 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:18:00,127 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-02-02 09:18:00,128 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:00 BoogieIcfgContainer [2024-02-02 09:18:00,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:18:00,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:18:00,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:18:00,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:18:00,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:59" (1/4) ... [2024-02-02 09:18:00,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32115127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:18:00, skipping insertion in model container [2024-02-02 09:18:00,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:59" (2/4) ... [2024-02-02 09:18:00,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32115127 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:18:00, skipping insertion in model container [2024-02-02 09:18:00,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:59" (3/4) ... [2024-02-02 09:18:00,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32115127 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:18:00, skipping insertion in model container [2024-02-02 09:18:00,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:00" (4/4) ... [2024-02-02 09:18:00,140 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2024-02-02 09:18:00,155 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:18:00,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-02-02 09:18:00,156 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:18:00,201 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:18:00,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 44 transitions, 92 flow [2024-02-02 09:18:00,245 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-02-02 09:18:00,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:18:00,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 3/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-02-02 09:18:00,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 44 transitions, 92 flow [2024-02-02 09:18:00,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 42 transitions, 87 flow [2024-02-02 09:18:00,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:18:00,267 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;@7b1566ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:18:00,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-02-02 09:18:00,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:18:00,270 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:18:00,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:18:00,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:00,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:18:00,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 21 more)] === [2024-02-02 09:18:00,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash 7692, now seen corresponding path program 1 times [2024-02-02 09:18:00,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769248218] [2024-02-02 09:18:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:00,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:00,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:00,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769248218] [2024-02-02 09:18:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769248218] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:00,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:00,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:18:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489626766] [2024-02-02 09:18:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:00,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:18:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:00,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:18:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:18:00,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 44 [2024-02-02 09:18:00,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-02-02 09:18:00,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:00,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 44 [2024-02-02 09:18:00,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:18:00,599 INFO L124 PetriNetUnfolderBase]: 15/93 cut-off events. [2024-02-02 09:18:00,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:18:00,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 93 events. 15/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 1 based on Foata normal form. 2/81 useless extension candidates. Maximal degree in co-relation 128. Up to 35 conditions per place. [2024-02-02 09:18:00,602 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 16 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-02-02 09:18:00,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 125 flow [2024-02-02 09:18:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:18:00,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:18:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-02-02 09:18:00,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2024-02-02 09:18:00,613 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 87 flow. Second operand 3 states and 98 transitions. [2024-02-02 09:18:00,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 125 flow [2024-02-02 09:18:00,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:18:00,617 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 92 flow [2024-02-02 09:18:00,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2024-02-02 09:18:00,621 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-02-02 09:18:00,621 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 92 flow [2024-02-02 09:18:00,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-02-02 09:18:00,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:00,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:18:00,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:18:00,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 21 more)] === [2024-02-02 09:18:00,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash 229436117, now seen corresponding path program 1 times [2024-02-02 09:18:00,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:00,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002754395] [2024-02-02 09:18:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:00,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:00,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002754395] [2024-02-02 09:18:00,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002754395] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:00,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:00,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:18:00,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541735164] [2024-02-02 09:18:00,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:00,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:18:00,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:00,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:18:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:18:00,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 44 [2024-02-02 09:18:00,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-02-02 09:18:00,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:00,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 44 [2024-02-02 09:18:00,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:18:00,851 INFO L124 PetriNetUnfolderBase]: 13/87 cut-off events. [2024-02-02 09:18:00,851 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-02 09:18:00,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 87 events. 13/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 0 based on Foata normal form. 12/91 useless extension candidates. Maximal degree in co-relation 122. Up to 31 conditions per place. [2024-02-02 09:18:00,853 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 13 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-02-02 09:18:00,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 114 flow [2024-02-02 09:18:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:18:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:18:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-02-02 09:18:00,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6534090909090909 [2024-02-02 09:18:00,859 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 92 flow. Second operand 4 states and 115 transitions. [2024-02-02 09:18:00,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 114 flow [2024-02-02 09:18:00,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:18:00,865 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 84 flow [2024-02-02 09:18:00,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-02-02 09:18:00,866 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2024-02-02 09:18:00,866 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 84 flow [2024-02-02 09:18:00,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-02-02 09:18:00,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:00,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:18:00,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:18:00,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 21 more)] === [2024-02-02 09:18:00,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1704325449, now seen corresponding path program 1 times [2024-02-02 09:18:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:00,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100425387] [2024-02-02 09:18:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:01,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:01,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100425387] [2024-02-02 09:18:01,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100425387] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:01,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:01,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:18:01,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726427380] [2024-02-02 09:18:01,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:01,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:18:01,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:01,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:18:01,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:18:01,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2024-02-02 09:18:01,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-02-02 09:18:01,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:01,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2024-02-02 09:18:01,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:18:01,152 INFO L124 PetriNetUnfolderBase]: 23/95 cut-off events. [2024-02-02 09:18:01,153 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-02-02 09:18:01,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 95 events. 23/95 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 141 event pairs, 1 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 160. Up to 50 conditions per place. [2024-02-02 09:18:01,154 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 24 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2024-02-02 09:18:01,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 40 transitions, 146 flow [2024-02-02 09:18:01,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:18:01,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:18:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-02-02 09:18:01,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4772727272727273 [2024-02-02 09:18:01,155 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 84 flow. Second operand 4 states and 84 transitions. [2024-02-02 09:18:01,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 40 transitions, 146 flow [2024-02-02 09:18:01,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:18:01,157 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 91 flow [2024-02-02 09:18:01,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-02-02 09:18:01,158 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-02-02 09:18:01,158 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 91 flow [2024-02-02 09:18:01,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-02-02 09:18:01,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:01,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:18:01,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:18:01,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 21 more)] === [2024-02-02 09:18:01,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1294481627, now seen corresponding path program 1 times [2024-02-02 09:18:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:01,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62241531] [2024-02-02 09:18:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:01,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:01,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62241531] [2024-02-02 09:18:01,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62241531] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:01,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:01,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:18:01,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666690144] [2024-02-02 09:18:01,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:01,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:18:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:18:01,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:18:01,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-02-02 09:18:01,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-02-02 09:18:01,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:01,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-02-02 09:18:01,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:18:01,320 INFO L124 PetriNetUnfolderBase]: 20/86 cut-off events. [2024-02-02 09:18:01,320 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-02-02 09:18:01,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 86 events. 20/86 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 1 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 154. Up to 39 conditions per place. [2024-02-02 09:18:01,321 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 19 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2024-02-02 09:18:01,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 133 flow [2024-02-02 09:18:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:18:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:18:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-02-02 09:18:01,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4431818181818182 [2024-02-02 09:18:01,323 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 91 flow. Second operand 4 states and 78 transitions. [2024-02-02 09:18:01,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 133 flow [2024-02-02 09:18:01,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 127 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:18:01,324 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 85 flow [2024-02-02 09:18:01,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-02-02 09:18:01,325 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-02-02 09:18:01,325 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 85 flow [2024-02-02 09:18:01,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-02-02 09:18:01,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:01,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:18:01,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:18:01,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 21 more)] === [2024-02-02 09:18:01,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1543663938, now seen corresponding path program 1 times [2024-02-02 09:18:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:01,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492764461] [2024-02-02 09:18:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:01,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:01,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492764461] [2024-02-02 09:18:01,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492764461] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:01,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:01,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:18:01,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843019674] [2024-02-02 09:18:01,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:01,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:18:01,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:01,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:18:01,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:18:01,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 44 [2024-02-02 09:18:01,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-02-02 09:18:01,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:01,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 44 [2024-02-02 09:18:01,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:18:01,428 INFO L124 PetriNetUnfolderBase]: 15/72 cut-off events. [2024-02-02 09:18:01,428 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-02-02 09:18:01,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 72 events. 15/72 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 1 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 128. Up to 32 conditions per place. [2024-02-02 09:18:01,429 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 17 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2024-02-02 09:18:01,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 127 flow [2024-02-02 09:18:01,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:18:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:18:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-02-02 09:18:01,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6647727272727273 [2024-02-02 09:18:01,430 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 85 flow. Second operand 4 states and 117 transitions. [2024-02-02 09:18:01,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 127 flow [2024-02-02 09:18:01,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 119 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:18:01,431 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 79 flow [2024-02-02 09:18:01,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-02-02 09:18:01,432 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2024-02-02 09:18:01,432 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 79 flow [2024-02-02 09:18:01,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-02-02 09:18:01,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:01,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:18:01,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:18:01,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 21 more)] === [2024-02-02 09:18:01,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:01,434 INFO L85 PathProgramCache]: Analyzing trace with hash 993812193, now seen corresponding path program 1 times [2024-02-02 09:18:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:01,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411291871] [2024-02-02 09:18:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:01,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:01,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411291871] [2024-02-02 09:18:01,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411291871] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:01,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:01,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:18:01,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65994522] [2024-02-02 09:18:01,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:01,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:18:01,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:01,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:18:01,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:18:01,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2024-02-02 09:18:01,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-02-02 09:18:01,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:01,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2024-02-02 09:18:01,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:18:01,588 INFO L124 PetriNetUnfolderBase]: 20/78 cut-off events. [2024-02-02 09:18:01,588 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-02-02 09:18:01,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 78 events. 20/78 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 74 event pairs, 1 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 148. Up to 30 conditions per place. [2024-02-02 09:18:01,589 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2024-02-02 09:18:01,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 33 transitions, 135 flow [2024-02-02 09:18:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:18:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:18:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2024-02-02 09:18:01,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37727272727272726 [2024-02-02 09:18:01,590 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 79 flow. Second operand 5 states and 83 transitions. [2024-02-02 09:18:01,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 33 transitions, 135 flow [2024-02-02 09:18:01,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 127 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:18:01,591 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-02-02 09:18:01,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-02-02 09:18:01,592 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2024-02-02 09:18:01,592 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-02-02 09:18:01,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-02-02 09:18:01,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 24 remaining) [2024-02-02 09:18:01,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 24 remaining) [2024-02-02 09:18:01,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 24 remaining) [2024-02-02 09:18:01,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 24 remaining) [2024-02-02 09:18:01,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 24 remaining) [2024-02-02 09:18:01,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 24 remaining) [2024-02-02 09:18:01,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONERROR_FUNCTION (17 of 24 remaining) [2024-02-02 09:18:01,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 24 remaining) [2024-02-02 09:18:01,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 24 remaining) [2024-02-02 09:18:01,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 24 remaining) [2024-02-02 09:18:01,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 24 remaining) [2024-02-02 09:18:01,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 24 remaining) [2024-02-02 09:18:01,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 24 remaining) [2024-02-02 09:18:01,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 24 remaining) [2024-02-02 09:18:01,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 24 remaining) [2024-02-02 09:18:01,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 24 remaining) [2024-02-02 09:18:01,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 24 remaining) [2024-02-02 09:18:01,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 24 remaining) [2024-02-02 09:18:01,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 24 remaining) [2024-02-02 09:18:01,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 24 remaining) [2024-02-02 09:18:01,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 24 remaining) [2024-02-02 09:18:01,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 24 remaining) [2024-02-02 09:18:01,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 24 remaining) [2024-02-02 09:18:01,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 24 remaining) [2024-02-02 09:18:01,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:18:01,600 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-02-02 09:18:01,604 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:18:01,604 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:18:01,607 INFO L503 ceAbstractionStarter]: Automizer considered 11 witness invariants [2024-02-02 09:18:01,607 INFO L504 ceAbstractionStarter]: WitnessConsidered=11 [2024-02-02 09:18:01,608 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:18:01 BasicIcfg [2024-02-02 09:18:01,608 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:18:01,608 INFO L158 Benchmark]: Toolchain (without parser) took 2426.79ms. Allocated memory was 157.3MB in the beginning and 255.9MB in the end (delta: 98.6MB). Free memory was 129.8MB in the beginning and 156.3MB in the end (delta: -26.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2024-02-02 09:18:01,609 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:18:01,609 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 157.3MB. Free memory was 87.5MB in the beginning and 87.4MB in the end (delta: 113.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:18:01,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.60ms. Allocated memory is still 157.3MB. Free memory was 129.8MB in the beginning and 107.3MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-02-02 09:18:01,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.40ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:18:01,610 INFO L158 Benchmark]: Boogie Preprocessor took 37.30ms. Allocated memory is still 157.3MB. Free memory was 105.2MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:18:01,610 INFO L158 Benchmark]: RCFGBuilder took 414.12ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 75.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-02-02 09:18:01,610 INFO L158 Benchmark]: TraceAbstraction took 1478.50ms. Allocated memory was 157.3MB in the beginning and 255.9MB in the end (delta: 98.6MB). Free memory was 74.3MB in the beginning and 156.3MB in the end (delta: -82.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-02-02 09:18:01,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 157.3MB. Free memory was 87.5MB in the beginning and 87.4MB in the end (delta: 113.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.60ms. Allocated memory is still 157.3MB. Free memory was 129.8MB in the beginning and 107.3MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.40ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.30ms. Allocated memory is still 157.3MB. Free memory was 105.2MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.12ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 75.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1478.50ms. Allocated memory was 157.3MB in the beginning and 255.9MB in the end (delta: 98.6MB). Free memory was 74.3MB in the beginning and 156.3MB in the end (delta: -82.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: 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 3 procedures, 79 locations, 24 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: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 385 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 48 mSDtfsCounter, 385 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=1, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 362 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 09:18:01,645 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