./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/13-privatized_19-publish-precision_true.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/goblint-regression/13-privatized_19-publish-precision_true.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/13-privatized_19-publish-precision_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-wip.fs.witness-ghost-b44c828-m [2024-05-12 10:48:59,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 10:48:59,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 10:48:59,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 10:48:59,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 10:48:59,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 10:48:59,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 10:48:59,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 10:48:59,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 10:48:59,612 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 10:48:59,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 10:48:59,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 10:48:59,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 10:48:59,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 10:48:59,614 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 10:48:59,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 10:48:59,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 10:48:59,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 10:48:59,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 10:48:59,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 10:48:59,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 10:48:59,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 10:48:59,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 10:48:59,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 10:48:59,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 10:48:59,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 10:48:59,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 10:48:59,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 10:48:59,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 10:48:59,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 10:48:59,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 10:48:59,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 10:48:59,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:48:59,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 10:48:59,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 10:48:59,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 10:48:59,620 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 10:48:59,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 10:48:59,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 10:48:59,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 10:48:59,620 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 10:48:59,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 10:48:59,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 10:48:59,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 10:48:59,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 10:48:59,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 10:48:59,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 10:48:59,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 10:48:59,849 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 10:48:59,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_true.i [2024-05-12 10:49:00,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 10:49:01,119 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 10:49:01,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_true.i [2024-05-12 10:49:01,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d2f0600/bde6f218eeb343d78c2fd2226c2f6688/FLAG4164086e1 [2024-05-12 10:49:01,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d2f0600/bde6f218eeb343d78c2fd2226c2f6688 [2024-05-12 10:49:01,145 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 10:49:01,145 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 10:49:01,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/13-privatized_19-publish-precision_true.yml/witness.yml [2024-05-12 10:49:01,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 10:49:01,243 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 10:49:01,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 10:49:01,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 10:49:01,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 10:49:01,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:49:01" (1/2) ... [2024-05-12 10:49:01,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5faa9e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:01, skipping insertion in model container [2024-05-12 10:49:01,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:49:01" (1/2) ... [2024-05-12 10:49:01,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70cfb588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:01, skipping insertion in model container [2024-05-12 10:49:01,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:49:01" (2/2) ... [2024-05-12 10:49:01,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5faa9e4b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:49:01, skipping insertion in model container [2024-05-12 10:49:01,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:49:01" (2/2) ... [2024-05-12 10:49:01,253 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 10:49:01,282 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 10:49:01,284 INFO L97 edCorrectnessWitness]: Location invariant before [L700-L700] ((! multithreaded || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5))) && (! multithreaded || (mutex2_locked || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5))))) && (! multithreaded || (mutex1_locked || glob1 == 0)) [2024-05-12 10:49:01,284 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-05-12 10:49:01,284 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 10:49:01,284 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-05-12 10:49:01,284 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-05-12 10:49:01,285 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] multithreaded = 1; [2024-05-12 10:49:01,285 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex2_locked = 0; [2024-05-12 10:49:01,285 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-05-12 10:49:01,286 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-05-12 10:49:01,286 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] mutex2_locked = 0; [2024-05-12 10:49:01,286 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-05-12 10:49:01,286 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 1; [2024-05-12 10:49:01,286 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] mutex1_locked = 0; [2024-05-12 10:49:01,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 10:49:01,462 WARN L246 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_19-publish-precision_true.i[1094,1107] [2024-05-12 10:49:01,597 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:49:01,606 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:49:01,635 WARN L246 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_19-publish-precision_true.i[1094,1107] 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 [2024-05-12 10:49:01,707 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:49:01,732 INFO L206 MainTranslator]: Completed translation [2024-05-12 10:49:01,733 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:49:01 WrapperNode [2024-05-12 10:49:01,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 10:49:01,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 10:49:01,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 10:49:01,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 10:49:01,739 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,748 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,763 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2024-05-12 10:49:01,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 10:49:01,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 10:49:01,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 10:49:01,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 10:49:01,774 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,774 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,776 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,791 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 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]. [2024-05-12 10:49:01,792 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,792 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,795 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,797 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,798 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,799 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 10:49:01,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 10:49:01,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 10:49:01,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 10:49:01,804 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 10:49:01" (1/1) ... [2024-05-12 10:49:01,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:49:01,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 10:49:01,833 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 10:49:01,834 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 10:49:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 10:49:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 10:49:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 10:49:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 10:49:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 10:49:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 10:49:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 10:49:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 10:49:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 10:49:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 10:49:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 10:49:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-12 10:49:01,866 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-12 10:49:01,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 10:49:01,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 10:49:01,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 10:49:01,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 10:49:01,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 10:49:01,867 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 10:49:01,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 10:49:01,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 10:49:01,871 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 10:49:01,967 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 10:49:01,968 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 10:49:02,117 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 10:49:02,117 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 10:49:02,199 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 10:49:02,200 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 10:49:02,200 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:49:02 BoogieIcfgContainer [2024-05-12 10:49:02,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 10:49:02,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 10:49:02,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 10:49:02,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 10:49:02,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 10:49:01" (1/4) ... [2024-05-12 10:49:02,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e62ee78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:49:02, skipping insertion in model container [2024-05-12 10:49:02,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:49:01" (2/4) ... [2024-05-12 10:49:02,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e62ee78 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:49:02, skipping insertion in model container [2024-05-12 10:49:02,211 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 10:49:01" (3/4) ... [2024-05-12 10:49:02,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e62ee78 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:49:02, skipping insertion in model container [2024-05-12 10:49:02,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:49:02" (4/4) ... [2024-05-12 10:49:02,212 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_true.i [2024-05-12 10:49:02,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 10:49:02,224 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-05-12 10:49:02,224 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 10:49:02,256 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-12 10:49:02,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 37 transitions, 81 flow [2024-05-12 10:49:02,320 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-05-12 10:49:02,321 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:49:02,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 36 events. 2/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-05-12 10:49:02,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 37 transitions, 81 flow [2024-05-12 10:49:02,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 34 transitions, 71 flow [2024-05-12 10:49:02,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 10:49:02,342 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;@5e5b540c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 10:49:02,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-12 10:49:02,346 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 10:49:02,346 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-05-12 10:49:02,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:49:02,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:02,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-05-12 10:49:02,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-12 10:49:02,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:02,352 INFO L85 PathProgramCache]: Analyzing trace with hash 238942, now seen corresponding path program 1 times [2024-05-12 10:49:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:02,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077547878] [2024-05-12 10:49:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:02,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:02,619 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 10:49:02,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:02,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077547878] [2024-05-12 10:49:02,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077547878] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:02,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:02,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:49:02,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182418041] [2024-05-12 10:49:02,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:02,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:49:02,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:02,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:49:02,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:49:02,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-05-12 10:49:02,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:02,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:02,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-05-12 10:49:02,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:02,713 INFO L124 PetriNetUnfolderBase]: 40/136 cut-off events. [2024-05-12 10:49:02,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:49:02,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 136 events. 40/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 448 event pairs, 40 based on Foata normal form. 5/131 useless extension candidates. Maximal degree in co-relation 224. Up to 99 conditions per place. [2024-05-12 10:49:02,715 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 18 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2024-05-12 10:49:02,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 103 flow [2024-05-12 10:49:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:49:02,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:49:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-05-12 10:49:02,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-05-12 10:49:02,725 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 71 flow. Second operand 3 states and 58 transitions. [2024-05-12 10:49:02,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 103 flow [2024-05-12 10:49:02,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 10:49:02,729 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 66 flow [2024-05-12 10:49:02,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-05-12 10:49:02,733 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-05-12 10:49:02,733 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 66 flow [2024-05-12 10:49:02,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:02,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:02,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:02,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 10:49:02,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-12 10:49:02,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash 692300713, now seen corresponding path program 1 times [2024-05-12 10:49:02,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:02,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640748813] [2024-05-12 10:49:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:02,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:02,896 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 10:49:02,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:02,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640748813] [2024-05-12 10:49:02,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640748813] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:02,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:02,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 10:49:02,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312838162] [2024-05-12 10:49:02,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:02,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:49:02,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:02,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:49:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:49:02,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-05-12 10:49:02,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 10:49:02,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:02,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-05-12 10:49:02,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:02,957 INFO L124 PetriNetUnfolderBase]: 43/148 cut-off events. [2024-05-12 10:49:02,958 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:49:02,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 148 events. 43/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 532 event pairs, 27 based on Foata normal form. 7/146 useless extension candidates. Maximal degree in co-relation 255. Up to 67 conditions per place. [2024-05-12 10:49:02,959 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 21 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-05-12 10:49:02,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 122 flow [2024-05-12 10:49:02,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:49:02,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:49:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-05-12 10:49:02,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5765765765765766 [2024-05-12 10:49:02,960 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 64 transitions. [2024-05-12 10:49:02,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 122 flow [2024-05-12 10:49:02,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:49:02,962 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 73 flow [2024-05-12 10:49:02,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=3, PETRI_FLOW=73, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2024-05-12 10:49:02,962 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2024-05-12 10:49:02,963 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 73 flow [2024-05-12 10:49:02,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 10:49:02,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:02,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:02,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 10:49:02,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-12 10:49:02,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash -716842157, now seen corresponding path program 1 times [2024-05-12 10:49:02,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:02,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148564025] [2024-05-12 10:49:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:03,217 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 10:49:03,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:03,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148564025] [2024-05-12 10:49:03,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148564025] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:03,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:03,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:03,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421470763] [2024-05-12 10:49:03,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:03,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 10:49:03,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:03,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 10:49:03,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-05-12 10:49:03,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-05-12 10:49:03,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 10:49:03,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:03,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-05-12 10:49:03,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:03,336 INFO L124 PetriNetUnfolderBase]: 50/172 cut-off events. [2024-05-12 10:49:03,337 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-05-12 10:49:03,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 172 events. 50/172 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 663 event pairs, 8 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 315. Up to 49 conditions per place. [2024-05-12 10:49:03,339 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 28 selfloop transitions, 10 changer transitions 3/51 dead transitions. [2024-05-12 10:49:03,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 205 flow [2024-05-12 10:49:03,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 10:49:03,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 10:49:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-05-12 10:49:03,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5783783783783784 [2024-05-12 10:49:03,352 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 73 flow. Second operand 5 states and 107 transitions. [2024-05-12 10:49:03,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 205 flow [2024-05-12 10:49:03,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:49:03,354 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 136 flow [2024-05-12 10:49:03,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2024-05-12 10:49:03,354 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2024-05-12 10:49:03,355 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 136 flow [2024-05-12 10:49:03,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 10:49:03,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:03,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:03,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 10:49:03,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-12 10:49:03,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:03,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1697356294, now seen corresponding path program 1 times [2024-05-12 10:49:03,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:03,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721628974] [2024-05-12 10:49:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:03,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:03,484 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 10:49:03,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:03,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721628974] [2024-05-12 10:49:03,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721628974] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:03,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:03,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:03,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357430862] [2024-05-12 10:49:03,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:03,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 10:49:03,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:03,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 10:49:03,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-12 10:49:03,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-05-12 10:49:03,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 10:49:03,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:03,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-05-12 10:49:03,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:03,568 INFO L124 PetriNetUnfolderBase]: 45/156 cut-off events. [2024-05-12 10:49:03,569 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-05-12 10:49:03,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 156 events. 45/156 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 562 event pairs, 10 based on Foata normal form. 3/153 useless extension candidates. Maximal degree in co-relation 382. Up to 47 conditions per place. [2024-05-12 10:49:03,570 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 27 selfloop transitions, 5 changer transitions 5/46 dead transitions. [2024-05-12 10:49:03,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 242 flow [2024-05-12 10:49:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-12 10:49:03,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-05-12 10:49:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2024-05-12 10:49:03,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774774774774775 [2024-05-12 10:49:03,573 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 136 flow. Second operand 6 states and 106 transitions. [2024-05-12 10:49:03,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 242 flow [2024-05-12 10:49:03,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:49:03,575 INFO L231 Difference]: Finished difference. Result has 43 places, 31 transitions, 118 flow [2024-05-12 10:49:03,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2024-05-12 10:49:03,576 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2024-05-12 10:49:03,576 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 118 flow [2024-05-12 10:49:03,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 10:49:03,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:03,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:03,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 10:49:03,577 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-05-12 10:49:03,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:03,578 INFO L85 PathProgramCache]: Analyzing trace with hash 852149389, now seen corresponding path program 1 times [2024-05-12 10:49:03,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:03,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36294303] [2024-05-12 10:49:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:03,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:03,619 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 10:49:03,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:03,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36294303] [2024-05-12 10:49:03,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36294303] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:03,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:03,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:03,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865913231] [2024-05-12 10:49:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:03,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:49:03,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:03,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:49:03,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:49:03,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-05-12 10:49:03,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 10:49:03,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:03,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-05-12 10:49:03,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:03,689 INFO L124 PetriNetUnfolderBase]: 33/106 cut-off events. [2024-05-12 10:49:03,690 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-05-12 10:49:03,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 106 events. 33/106 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 331 event pairs, 6 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 277. Up to 35 conditions per place. [2024-05-12 10:49:03,691 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-05-12 10:49:03,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 220 flow [2024-05-12 10:49:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 10:49:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 10:49:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-05-12 10:49:03,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49324324324324326 [2024-05-12 10:49:03,692 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 118 flow. Second operand 4 states and 73 transitions. [2024-05-12 10:49:03,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 220 flow [2024-05-12 10:49:03,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 10:49:03,694 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-05-12 10:49:03,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-05-12 10:49:03,695 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-05-12 10:49:03,695 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-05-12 10:49:03,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 10:49:03,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-05-12 10:49:03,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-05-12 10:49:03,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-05-12 10:49:03,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-05-12 10:49:03,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-05-12 10:49:03,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 10:49:03,699 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-05-12 10:49:03,703 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 10:49:03,704 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 10:49:03,711 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-05-12 10:49:03,711 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-05-12 10:49:03,712 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 10:49:03 BasicIcfg [2024-05-12 10:49:03,712 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 10:49:03,713 INFO L158 Benchmark]: Toolchain (without parser) took 2470.44ms. Allocated memory is still 161.5MB. Free memory was 87.5MB in the beginning and 49.4MB in the end (delta: 38.1MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-05-12 10:49:03,713 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:49:03,715 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 161.5MB. Free memory was 91.2MB in the beginning and 91.1MB in the end (delta: 178.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:49:03,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.85ms. Allocated memory is still 161.5MB. Free memory was 87.3MB in the beginning and 127.6MB in the end (delta: -40.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-05-12 10:49:03,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.96ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 125.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:49:03,721 INFO L158 Benchmark]: Boogie Preprocessor took 36.87ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 123.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:49:03,721 INFO L158 Benchmark]: RCFGBuilder took 396.47ms. Allocated memory is still 161.5MB. Free memory was 123.0MB in the beginning and 94.6MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-05-12 10:49:03,721 INFO L158 Benchmark]: TraceAbstraction took 1511.35ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 49.4MB in the end (delta: 44.7MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-05-12 10:49:03,724 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 161.5MB. Free memory was 91.2MB in the beginning and 91.1MB in the end (delta: 178.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.85ms. Allocated memory is still 161.5MB. Free memory was 87.3MB in the beginning and 127.6MB in the end (delta: -40.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.96ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 125.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.87ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 123.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.47ms. Allocated memory is still 161.5MB. Free memory was 123.0MB in the beginning and 94.6MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1511.35ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 49.4MB in the end (delta: 44.7MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 700]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 55 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=3, InterpolantAutomatonStates: 21, 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, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 10:49:03,748 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