./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_41-traces-ex-7_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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_41-traces-ex-7_unknown_1_pos.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_41-traces-ex-7_unknown_1_pos.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 02:14:58,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 02:14:58,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 02:14:58,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 02:14:58,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 02:14:59,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 02:14:59,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 02:14:59,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 02:14:59,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 02:14:59,015 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 02:14:59,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 02:14:59,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 02:14:59,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 02:14:59,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 02:14:59,016 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 02:14:59,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 02:14:59,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 02:14:59,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 02:14:59,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 02:14:59,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 02:14:59,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 02:14:59,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 02:14:59,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 02:14:59,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 02:14:59,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 02:14:59,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 02:14:59,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 02:14:59,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 02:14:59,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 02:14:59,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 02:14:59,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 02:14:59,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 02:14:59,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 02:14:59,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 02:14:59,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 02:14:59,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 02:14:59,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 02:14:59,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 02:14:59,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 02:14:59,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 02:14:59,021 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 02:14:59,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 02:14:59,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 02:14:59,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 02:14:59,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 02:14:59,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 02:14:59,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 02:14:59,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 02:14:59,259 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 02:14:59,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2024-06-28 02:15:00,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 02:15:00,440 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 02:15:00,441 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2024-06-28 02:15:00,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40245186/953ba05887d0455ca71cb21eafdba946/FLAG98df1151d [2024-06-28 02:15:00,485 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40245186/953ba05887d0455ca71cb21eafdba946 [2024-06-28 02:15:00,489 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 02:15:00,490 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 02:15:00,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_41-traces-ex-7_unknown_1_pos.yml/witness.yml [2024-06-28 02:15:00,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 02:15:00,602 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 02:15:00,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 02:15:00,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 02:15:00,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 02:15:00,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 02:15:00" (1/2) ... [2024-06-28 02:15:00,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cbecf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:15:00, skipping insertion in model container [2024-06-28 02:15:00,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 02:15:00" (1/2) ... [2024-06-28 02:15:00,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68a0beb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 02:15:00, skipping insertion in model container [2024-06-28 02:15:00,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:15:00" (2/2) ... [2024-06-28 02:15:00,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cbecf6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:00, skipping insertion in model container [2024-06-28 02:15:00,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:15:00" (2/2) ... [2024-06-28 02:15:00,613 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 02:15:00,642 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 02:15:00,643 INFO L97 edCorrectnessWitness]: Location invariant before [L695-L695] ((! multithreaded || (g == 0 || g == 17)) && (! multithreaded || (D_locked || (g == 0 || g == 17)))) && (! multithreaded || (A_locked || (g == 0 || g == 17))) [2024-06-28 02:15:00,644 INFO L103 edCorrectnessWitness]: ghost_variable D_locked = 0 [2024-06-28 02:15:00,644 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-28 02:15:00,644 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 02:15:00,644 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] D_locked = 1; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] D_locked = 1; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] D_locked = 0; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] D_locked = 0; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] A_locked = 0; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] multithreaded = 1; [2024-06-28 02:15:00,645 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] A_locked = 1; [2024-06-28 02:15:00,681 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 02:15:00,814 WARN L247 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2024-06-28 02:15:00,946 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 02:15:00,956 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 02:15:00,991 WARN L247 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_41-traces-ex-7_unknown_1_pos.i[1097,1110] 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 [2024-06-28 02:15:01,048 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 02:15:01,087 INFO L206 MainTranslator]: Completed translation [2024-06-28 02:15:01,088 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01 WrapperNode [2024-06-28 02:15:01,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 02:15:01,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 02:15:01,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 02:15:01,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 02:15:01,095 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 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,120 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 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,142 INFO L138 Inliner]: procedures = 162, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2024-06-28 02:15:01,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 02:15:01,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 02:15:01,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 02:15:01,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 02:15:01,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,179 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-28 02:15:01,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 02:15:01,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 02:15:01,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 02:15:01,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 02:15:01,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (1/1) ... [2024-06-28 02:15:01,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 02:15:01,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 02:15:01,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-28 02:15:01,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-28 02:15:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 02:15:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 02:15:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-28 02:15:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-28 02:15:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 02:15:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 02:15:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-28 02:15:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 02:15:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 02:15:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 02:15:01,274 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 02:15:01,403 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 02:15:01,405 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 02:15:01,548 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 02:15:01,548 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 02:15:01,612 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 02:15:01,613 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 02:15:01,613 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 02:15:01 BoogieIcfgContainer [2024-06-28 02:15:01,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 02:15:01,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 02:15:01,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 02:15:01,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 02:15:01,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 02:15:00" (1/4) ... [2024-06-28 02:15:01,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2168a831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 02:15:01, skipping insertion in model container [2024-06-28 02:15:01,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 02:15:00" (2/4) ... [2024-06-28 02:15:01,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2168a831 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 02:15:01, skipping insertion in model container [2024-06-28 02:15:01,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 02:15:01" (3/4) ... [2024-06-28 02:15:01,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2168a831 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 02:15:01, skipping insertion in model container [2024-06-28 02:15:01,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 02:15:01" (4/4) ... [2024-06-28 02:15:01,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2024-06-28 02:15:01,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 02:15:01,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-28 02:15:01,636 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 02:15:01,667 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-28 02:15:01,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-06-28 02:15:01,709 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-06-28 02:15:01,709 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 02:15:01,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-06-28 02:15:01,711 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-06-28 02:15:01,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 23 transitions, 49 flow [2024-06-28 02:15:01,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 02:15:01,734 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;@3e89a50e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 02:15:01,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-28 02:15:01,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 02:15:01,749 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-28 02:15:01,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 02:15:01,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:15:01,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 02:15:01,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:15:01,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:15:01,757 INFO L85 PathProgramCache]: Analyzing trace with hash 187624283, now seen corresponding path program 1 times [2024-06-28 02:15:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:15:01,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928790637] [2024-06-28 02:15:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:15:01,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:15:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:15:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 02:15:01,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:15:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928790637] [2024-06-28 02:15:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928790637] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:15:01,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:15:01,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 02:15:01,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617349636] [2024-06-28 02:15:01,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:15:01,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 02:15:01,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:15:02,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 02:15:02,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 02:15:02,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 27 [2024-06-28 02:15:02,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:15:02,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 27 [2024-06-28 02:15:02,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:15:02,090 INFO L124 PetriNetUnfolderBase]: 33/104 cut-off events. [2024-06-28 02:15:02,091 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 02:15:02,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 104 events. 33/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 363 event pairs, 13 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 179. Up to 52 conditions per place. [2024-06-28 02:15:02,093 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 17 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-06-28 02:15:02,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 97 flow [2024-06-28 02:15:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 02:15:02,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 02:15:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-06-28 02:15:02,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2024-06-28 02:15:02,105 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 3 states and 53 transitions. [2024-06-28 02:15:02,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 97 flow [2024-06-28 02:15:02,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 02:15:02,108 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 56 flow [2024-06-28 02:15:02,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2024-06-28 02:15:02,112 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2024-06-28 02:15:02,112 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 56 flow [2024-06-28 02:15:02,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:15:02,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:15:02,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 02:15:02,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:15:02,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:15:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash 424649912, now seen corresponding path program 1 times [2024-06-28 02:15:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:15:02,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700898073] [2024-06-28 02:15:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:15:02,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:15:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:15:02,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 02:15:02,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:15:02,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700898073] [2024-06-28 02:15:02,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700898073] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:15:02,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:15:02,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 02:15:02,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757625322] [2024-06-28 02:15:02,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:15:02,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 02:15:02,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:15:02,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 02:15:02,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 02:15:02,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 27 [2024-06-28 02:15:02,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:15:02,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 27 [2024-06-28 02:15:02,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:15:02,232 INFO L124 PetriNetUnfolderBase]: 30/97 cut-off events. [2024-06-28 02:15:02,232 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-06-28 02:15:02,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 97 events. 30/97 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 319 event pairs, 10 based on Foata normal form. 4/99 useless extension candidates. Maximal degree in co-relation 177. Up to 44 conditions per place. [2024-06-28 02:15:02,233 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 17 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2024-06-28 02:15:02,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 98 flow [2024-06-28 02:15:02,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 02:15:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 02:15:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-06-28 02:15:02,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2024-06-28 02:15:02,236 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 56 flow. Second operand 3 states and 52 transitions. [2024-06-28 02:15:02,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 98 flow [2024-06-28 02:15:02,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 92 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 02:15:02,237 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 48 flow [2024-06-28 02:15:02,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2024-06-28 02:15:02,239 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-06-28 02:15:02,239 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 48 flow [2024-06-28 02:15:02,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:15:02,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:15:02,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 02:15:02,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:15:02,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:15:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1264130858, now seen corresponding path program 1 times [2024-06-28 02:15:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:15:02,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530255940] [2024-06-28 02:15:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:15:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:15:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:15:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 02:15:02,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:15:02,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530255940] [2024-06-28 02:15:02,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530255940] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:15:02,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:15:02,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 02:15:02,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469143443] [2024-06-28 02:15:02,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:15:02,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 02:15:02,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:15:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 02:15:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 02:15:02,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-06-28 02:15:02,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:15:02,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-06-28 02:15:02,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:15:02,423 INFO L124 PetriNetUnfolderBase]: 32/105 cut-off events. [2024-06-28 02:15:02,423 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-28 02:15:02,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 105 events. 32/105 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 342 event pairs, 14 based on Foata normal form. 7/110 useless extension candidates. Maximal degree in co-relation 189. Up to 51 conditions per place. [2024-06-28 02:15:02,426 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 2 changer transitions 7/33 dead transitions. [2024-06-28 02:15:02,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 122 flow [2024-06-28 02:15:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 02:15:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 02:15:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2024-06-28 02:15:02,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-06-28 02:15:02,429 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 48 flow. Second operand 5 states and 72 transitions. [2024-06-28 02:15:02,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 122 flow [2024-06-28 02:15:02,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 02:15:02,431 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 59 flow [2024-06-28 02:15:02,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=59, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2024-06-28 02:15:02,432 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2024-06-28 02:15:02,432 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 59 flow [2024-06-28 02:15:02,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:15:02,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:15:02,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 02:15:02,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:15:02,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:15:02,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2119145829, now seen corresponding path program 1 times [2024-06-28 02:15:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:15:02,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43600578] [2024-06-28 02:15:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:15:02,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:15:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:15:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 02:15:02,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:15:02,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43600578] [2024-06-28 02:15:02,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43600578] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:15:02,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:15:02,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 02:15:02,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444966686] [2024-06-28 02:15:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:15:02,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 02:15:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:15:02,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 02:15:02,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-28 02:15:02,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 27 [2024-06-28 02:15:02,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 59 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:15:02,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 27 [2024-06-28 02:15:02,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:15:02,705 INFO L124 PetriNetUnfolderBase]: 13/65 cut-off events. [2024-06-28 02:15:02,705 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-28 02:15:02,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 65 events. 13/65 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 5 based on Foata normal form. 6/70 useless extension candidates. Maximal degree in co-relation 122. Up to 27 conditions per place. [2024-06-28 02:15:02,706 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 11 selfloop transitions, 5 changer transitions 0/25 dead transitions. [2024-06-28 02:15:02,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 99 flow [2024-06-28 02:15:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 02:15:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 02:15:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-06-28 02:15:02,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-06-28 02:15:02,708 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 59 flow. Second operand 4 states and 66 transitions. [2024-06-28 02:15:02,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 99 flow [2024-06-28 02:15:02,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 91 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-28 02:15:02,710 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 61 flow [2024-06-28 02:15:02,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2024-06-28 02:15:02,711 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2024-06-28 02:15:02,711 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 61 flow [2024-06-28 02:15:02,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:15:02,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:15:02,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 02:15:02,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:15:02,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:15:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash 221471325, now seen corresponding path program 2 times [2024-06-28 02:15:02,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:15:02,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230704570] [2024-06-28 02:15:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:15:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:15:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 02:15:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 02:15:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 02:15:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230704570] [2024-06-28 02:15:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230704570] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 02:15:02,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 02:15:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 02:15:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387973037] [2024-06-28 02:15:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 02:15:02,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 02:15:02,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 02:15:02,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 02:15:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-28 02:15:02,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 27 [2024-06-28 02:15:02,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 61 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 02:15:02,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 27 [2024-06-28 02:15:02,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 02:15:02,849 INFO L124 PetriNetUnfolderBase]: 10/55 cut-off events. [2024-06-28 02:15:02,849 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-06-28 02:15:02,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 55 events. 10/55 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 5 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 104. Up to 19 conditions per place. [2024-06-28 02:15:02,850 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 11 selfloop transitions, 4 changer transitions 1/25 dead transitions. [2024-06-28 02:15:02,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 101 flow [2024-06-28 02:15:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 02:15:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 02:15:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2024-06-28 02:15:02,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2024-06-28 02:15:02,854 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 61 flow. Second operand 4 states and 65 transitions. [2024-06-28 02:15:02,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 101 flow [2024-06-28 02:15:02,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 95 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 02:15:02,860 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 64 flow [2024-06-28 02:15:02,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2024-06-28 02:15:02,862 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2024-06-28 02:15:02,862 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 64 flow [2024-06-28 02:15:02,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 02:15:02,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 02:15:02,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 02:15:02,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 02:15:02,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-28 02:15:02,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 02:15:02,864 INFO L85 PathProgramCache]: Analyzing trace with hash 263273562, now seen corresponding path program 1 times [2024-06-28 02:15:02,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 02:15:02,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33124850] [2024-06-28 02:15:02,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 02:15:02,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 02:15:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-28 02:15:02,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-06-28 02:15:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-28 02:15:02,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-06-28 02:15:02,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-06-28 02:15:02,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-06-28 02:15:02,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-06-28 02:15:02,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-28 02:15:02,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 02:15:02,933 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-06-28 02:15:02,937 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 02:15:02,938 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 02:15:02,980 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-28 02:15:02,980 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-28 02:15:02,981 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 02:15:02 BasicIcfg [2024-06-28 02:15:02,981 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 02:15:02,982 INFO L158 Benchmark]: Toolchain (without parser) took 2379.63ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 63.2MB in the end (delta: 46.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-06-28 02:15:02,983 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:15:02,983 INFO L158 Benchmark]: Witness Parser took 0.26ms. Allocated memory is still 151.0MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:15:02,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.06ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 83.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-28 02:15:02,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.59ms. Allocated memory is still 151.0MB. Free memory was 83.6MB in the beginning and 81.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 02:15:02,983 INFO L158 Benchmark]: Boogie Preprocessor took 60.02ms. Allocated memory is still 151.0MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 02:15:02,983 INFO L158 Benchmark]: RCFGBuilder took 408.83ms. Allocated memory is still 151.0MB. Free memory was 79.4MB in the beginning and 54.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-28 02:15:02,984 INFO L158 Benchmark]: TraceAbstraction took 1365.88ms. Allocated memory is still 151.0MB. Free memory was 53.4MB in the beginning and 63.2MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 02:15:02,986 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 115.3MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.26ms. Allocated memory is still 151.0MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.06ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 83.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.59ms. Allocated memory is still 151.0MB. Free memory was 83.6MB in the beginning and 81.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.02ms. Allocated memory is still 151.0MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.83ms. Allocated memory is still 151.0MB. Free memory was 79.4MB in the beginning and 54.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1365.88ms. Allocated memory is still 151.0MB. Free memory was 53.4MB in the beginning and 63.2MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int D_locked = 0; [L1] 0 //@ ghost int A_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] 0 //@ ghost multithreaded = 1; VAL [A={3:0}, D={4:0}, g=0, id=-1] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, g=0, id=-1] [L685] 1 //@ ghost D_locked = 1; [L686] 1 //@ ghost A_locked = 1; [L687] 1 g = 17 VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, arg={0:0}, g=17] [L688] 1 //@ ghost A_locked = 0; [L689] 1 //@ ghost D_locked = 0; [L695] 0 //@ assert (((!multithreaded || ((g == 0) || (g == 17))) && (!multithreaded || (D_locked || ((g == 0) || (g == 17))))) && (!multithreaded || (A_locked || ((g == 0) || (g == 17))))); VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, arg={0:0}, g=17, id=-1] [L695] 0 //@ ghost D_locked = 1; [L696] 0 //@ ghost A_locked = 1; [L697] 0 //@ ghost D_locked = 0; [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 695]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 38 locations, 3 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: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 5 mSDtfsCounter, 161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 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 RESULT: Ultimate proved your program to be incorrect! [2024-06-28 02:15:03,011 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE