./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.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_25-struct_nr_true.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_25-struct_nr_true.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_25-struct_nr_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-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:05:27,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:05:27,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:05:27,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:05:27,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:05:27,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:05:27,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:05:27,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:05:27,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:05:27,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:05:27,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:05:27,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:05:27,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:05:27,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:05:27,980 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:05:27,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:05:27,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:05:27,981 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:05:27,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:05:27,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:05:27,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:05:27,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:05:27,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:05:27,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:05:27,982 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:05:27,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:05:27,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:05:27,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:05:27,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:05:27,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:05:27,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:05:27,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:05:27,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:05:27,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:05:27,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:05:27,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:05:27,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:05:27,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:05:27,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:05:27,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:05:27,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:05:27,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:05:27,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:05:27,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:05:28,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:05:28,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:05:28,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:05:28,260 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:05:28,260 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:05:28,261 INFO L431 ainManager$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_25-struct_nr_true.yml/witness.yml [2024-06-28 01:05:28,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:05:28,383 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:05:28,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-06-28 01:05:29,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:05:29,723 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:05:29,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-06-28 01:05:29,733 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25add804f/3f690e7de17b43af88ae482c21f9ac7d/FLAGea06a3789 [2024-06-28 01:05:29,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25add804f/3f690e7de17b43af88ae482c21f9ac7d [2024-06-28 01:05:29,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:05:29,749 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:05:29,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:05:29,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:05:29,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:05:29,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:28" (1/2) ... [2024-06-28 01:05:29,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759cea2c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:29, skipping insertion in model container [2024-06-28 01:05:29,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:28" (1/2) ... [2024-06-28 01:05:29,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47796793 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:29, skipping insertion in model container [2024-06-28 01:05:29,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:05:29" (2/2) ... [2024-06-28 01:05:29,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759cea2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:29, skipping insertion in model container [2024-06-28 01:05:29,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:05:29" (2/2) ... [2024-06-28 01:05:29,761 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:05:29,788 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:05:29,789 INFO L97 edCorrectnessWitness]: Location invariant before [L701-L701] (! multithreaded || ((glob1 == -10 || glob1 == 5) || glob1 == 6)) && (! multithreaded || (lock1_mutex_locked || glob1 == 5)) [2024-06-28 01:05:29,789 INFO L103 edCorrectnessWitness]: ghost_variable lock1_mutex_locked = 0 [2024-06-28 01:05:29,789 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:05:29,790 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] lock1_mutex_locked = 0; [2024-06-28 01:05:29,790 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] lock1_mutex_locked = 1; [2024-06-28 01:05:29,790 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] lock1_mutex_locked = 1; [2024-06-28 01:05:29,790 INFO L106 edCorrectnessWitness]: ghost_update [L705-L705] lock1_mutex_locked = 0; [2024-06-28 01:05:29,791 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] multithreaded = 1; [2024-06-28 01:05:29,822 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:05:29,933 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_25-struct_nr_true.i[1086,1099] [2024-06-28 01:05:30,032 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:05:30,041 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-06-28 01:05:30,076 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_25-struct_nr_true.i[1086,1099] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:05:30,126 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:05:30,170 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:05:30,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30 WrapperNode [2024-06-28 01:05:30,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:05:30,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:05:30,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:05:30,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:05:30,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,225 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2024-06-28 01:05:30,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:05:30,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:05:30,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:05:30,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:05:30,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,258 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-06-28 01:05:30,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:05:30,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:05:30,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:05:30,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:05:30,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (1/1) ... [2024-06-28 01:05:30,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:05:30,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:05:30,312 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 01:05:30,341 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 01:05:30,369 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 01:05:30,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:05:30,369 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-28 01:05:30,369 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-28 01:05:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:05:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 01:05:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 01:05:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:05:30,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:05:30,372 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 01:05:30,506 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:05:30,508 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:05:30,669 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:05:30,669 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:05:30,744 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:05:30,744 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:05:30,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:05:30 BoogieIcfgContainer [2024-06-28 01:05:30,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:05:30,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:05:30,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:05:30,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:05:30,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:28" (1/4) ... [2024-06-28 01:05:30,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23be7f02 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:05:30, skipping insertion in model container [2024-06-28 01:05:30,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:05:29" (2/4) ... [2024-06-28 01:05:30,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23be7f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:05:30, skipping insertion in model container [2024-06-28 01:05:30,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:30" (3/4) ... [2024-06-28 01:05:30,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23be7f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:05:30, skipping insertion in model container [2024-06-28 01:05:30,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:05:30" (4/4) ... [2024-06-28 01:05:30,751 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2024-06-28 01:05:30,763 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:05:30,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-28 01:05:30,776 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:05:30,815 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-28 01:05:30,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 38 transitions, 83 flow [2024-06-28 01:05:30,867 INFO L124 PetriNetUnfolderBase]: 4/37 cut-off events. [2024-06-28 01:05:30,867 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 01:05:30,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 4/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-06-28 01:05:30,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 38 transitions, 83 flow [2024-06-28 01:05:30,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 35 transitions, 73 flow [2024-06-28 01:05:30,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:05:30,895 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;@5863f84f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:05:30,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-28 01:05:30,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:05:30,898 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-06-28 01:05:30,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:05:30,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:30,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-06-28 01:05:30,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:30,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:30,903 INFO L85 PathProgramCache]: Analyzing trace with hash 249925, now seen corresponding path program 1 times [2024-06-28 01:05:30,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:30,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405613502] [2024-06-28 01:05:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:30,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:31,078 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 01:05:31,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:31,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405613502] [2024-06-28 01:05:31,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405613502] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:31,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:31,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:05:31,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929272820] [2024-06-28 01:05:31,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:31,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:31,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:31,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:31,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:31,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-06-28 01:05:31,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 01:05:31,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:31,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-06-28 01:05:31,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:31,218 INFO L124 PetriNetUnfolderBase]: 49/149 cut-off events. [2024-06-28 01:05:31,218 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 01:05:31,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 149 events. 49/149 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 589 event pairs, 42 based on Foata normal form. 22/153 useless extension candidates. Maximal degree in co-relation 256. Up to 100 conditions per place. [2024-06-28 01:05:31,221 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 18 selfloop transitions, 4 changer transitions 3/36 dead transitions. [2024-06-28 01:05:31,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 125 flow [2024-06-28 01:05:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:31,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-06-28 01:05:31,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2024-06-28 01:05:31,232 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 73 flow. Second operand 3 states and 70 transitions. [2024-06-28 01:05:31,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 125 flow [2024-06-28 01:05:31,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:31,236 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 68 flow [2024-06-28 01:05:31,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2024-06-28 01:05:31,240 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-06-28 01:05:31,240 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 68 flow [2024-06-28 01:05:31,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 01:05:31,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:31,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:31,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:05:31,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:31,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1053077875, now seen corresponding path program 1 times [2024-06-28 01:05:31,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:31,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764259338] [2024-06-28 01:05:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:31,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:31,326 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 01:05:31,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:31,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764259338] [2024-06-28 01:05:31,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764259338] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:31,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:31,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:05:31,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002096004] [2024-06-28 01:05:31,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:31,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:31,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:31,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:31,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:31,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-06-28 01:05:31,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 01:05:31,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:31,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-06-28 01:05:31,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:31,387 INFO L124 PetriNetUnfolderBase]: 38/138 cut-off events. [2024-06-28 01:05:31,387 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-28 01:05:31,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 138 events. 38/138 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 556 event pairs, 17 based on Foata normal form. 4/132 useless extension candidates. Maximal degree in co-relation 234. Up to 73 conditions per place. [2024-06-28 01:05:31,390 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 20 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-06-28 01:05:31,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 128 flow [2024-06-28 01:05:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-06-28 01:05:31,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-06-28 01:05:31,395 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 68 flow. Second operand 3 states and 72 transitions. [2024-06-28 01:05:31,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 128 flow [2024-06-28 01:05:31,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:05:31,401 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 79 flow [2024-06-28 01:05:31,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2024-06-28 01:05:31,402 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2024-06-28 01:05:31,403 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 79 flow [2024-06-28 01:05:31,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 01:05:31,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:31,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:31,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:05:31,406 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:31,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1768936976, now seen corresponding path program 1 times [2024-06-28 01:05:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:31,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149403532] [2024-06-28 01:05:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:31,537 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 01:05:31,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:31,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149403532] [2024-06-28 01:05:31,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149403532] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:31,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:31,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:05:31,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254496162] [2024-06-28 01:05:31,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:31,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:05:31,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:05:31,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:05:31,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-06-28 01:05:31,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 01:05:31,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:31,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-06-28 01:05:31,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:31,646 INFO L124 PetriNetUnfolderBase]: 53/162 cut-off events. [2024-06-28 01:05:31,649 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-06-28 01:05:31,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 162 events. 53/162 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 657 event pairs, 16 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 309. Up to 65 conditions per place. [2024-06-28 01:05:31,652 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 28 selfloop transitions, 7 changer transitions 2/45 dead transitions. [2024-06-28 01:05:31,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 188 flow [2024-06-28 01:05:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:31,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-06-28 01:05:31,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-06-28 01:05:31,656 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 79 flow. Second operand 5 states and 100 transitions. [2024-06-28 01:05:31,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 188 flow [2024-06-28 01:05:31,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:31,659 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 116 flow [2024-06-28 01:05:31,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-06-28 01:05:31,660 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2024-06-28 01:05:31,661 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 116 flow [2024-06-28 01:05:31,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 01:05:31,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:31,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:31,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:05:31,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:31,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash -14989675, now seen corresponding path program 1 times [2024-06-28 01:05:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:31,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993973399] [2024-06-28 01:05:31,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:31,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:31,773 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 01:05:31,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:31,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993973399] [2024-06-28 01:05:31,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993973399] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:31,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:31,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:05:31,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054179595] [2024-06-28 01:05:31,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:31,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:05:31,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:31,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:05:31,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:05:31,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-06-28 01:05:31,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 01:05:31,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:31,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-06-28 01:05:31,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:31,844 INFO L124 PetriNetUnfolderBase]: 54/155 cut-off events. [2024-06-28 01:05:31,845 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-06-28 01:05:31,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 155 events. 54/155 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 592 event pairs, 23 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 353. Up to 76 conditions per place. [2024-06-28 01:05:31,846 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 23 selfloop transitions, 5 changer transitions 7/44 dead transitions. [2024-06-28 01:05:31,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 218 flow [2024-06-28 01:05:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 95 transitions. [2024-06-28 01:05:31,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-06-28 01:05:31,848 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 116 flow. Second operand 5 states and 95 transitions. [2024-06-28 01:05:31,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 218 flow [2024-06-28 01:05:31,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:05:31,850 INFO L231 Difference]: Finished difference. Result has 44 places, 30 transitions, 117 flow [2024-06-28 01:05:31,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2024-06-28 01:05:31,851 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2024-06-28 01:05:31,851 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 30 transitions, 117 flow [2024-06-28 01:05:31,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 01:05:31,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:31,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:31,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:05:31,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:31,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:31,853 INFO L85 PathProgramCache]: Analyzing trace with hash -168818469, now seen corresponding path program 1 times [2024-06-28 01:05:31,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:31,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553816681] [2024-06-28 01:05:31,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:31,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:31,900 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 01:05:31,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553816681] [2024-06-28 01:05:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553816681] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:31,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:31,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614792793] [2024-06-28 01:05:31,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:31,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:05:31,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:31,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:05:31,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:05:31,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-06-28 01:05:31,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 30 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 01:05:31,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:31,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-06-28 01:05:31,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:31,972 INFO L124 PetriNetUnfolderBase]: 26/108 cut-off events. [2024-06-28 01:05:31,972 INFO L125 PetriNetUnfolderBase]: For 77/78 co-relation queries the response was YES. [2024-06-28 01:05:31,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 108 events. 26/108 cut-off events. For 77/78 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 391 event pairs, 7 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 251. Up to 43 conditions per place. [2024-06-28 01:05:31,973 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 22 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2024-06-28 01:05:31,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 214 flow [2024-06-28 01:05:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:05:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:05:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-06-28 01:05:31,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-06-28 01:05:31,975 INFO L175 Difference]: Start difference. First operand has 44 places, 30 transitions, 117 flow. Second operand 6 states and 120 transitions. [2024-06-28 01:05:31,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 214 flow [2024-06-28 01:05:31,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 201 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-06-28 01:05:31,976 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 153 flow [2024-06-28 01:05:31,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2024-06-28 01:05:31,977 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2024-06-28 01:05:31,977 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 153 flow [2024-06-28 01:05:31,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 01:05:31,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:31,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:31,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:05:31,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:31,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:31,978 INFO L85 PathProgramCache]: Analyzing trace with hash 618225912, now seen corresponding path program 1 times [2024-06-28 01:05:31,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:31,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972886072] [2024-06-28 01:05:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:31,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:32,017 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 01:05:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:32,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972886072] [2024-06-28 01:05:32,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972886072] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:32,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:32,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:05:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893589441] [2024-06-28 01:05:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:32,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:32,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:32,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:32,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:32,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 38 [2024-06-28 01:05:32,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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) [2024-06-28 01:05:32,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:32,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 38 [2024-06-28 01:05:32,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:32,049 INFO L124 PetriNetUnfolderBase]: 13/63 cut-off events. [2024-06-28 01:05:32,050 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-06-28 01:05:32,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 63 events. 13/63 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 4 based on Foata normal form. 7/69 useless extension candidates. Maximal degree in co-relation 157. Up to 29 conditions per place. [2024-06-28 01:05:32,051 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 16 selfloop transitions, 4 changer transitions 1/33 dead transitions. [2024-06-28 01:05:32,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 33 transitions, 178 flow [2024-06-28 01:05:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-06-28 01:05:32,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6228070175438597 [2024-06-28 01:05:32,052 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 153 flow. Second operand 3 states and 71 transitions. [2024-06-28 01:05:32,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 33 transitions, 178 flow [2024-06-28 01:05:32,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 33 transitions, 160 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-06-28 01:05:32,056 INFO L231 Difference]: Finished difference. Result has 44 places, 29 transitions, 118 flow [2024-06-28 01:05:32,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2024-06-28 01:05:32,058 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2024-06-28 01:05:32,058 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 29 transitions, 118 flow [2024-06-28 01:05:32,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 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) [2024-06-28 01:05:32,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:32,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:32,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:05:32,059 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:32,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash 974235352, now seen corresponding path program 1 times [2024-06-28 01:05:32,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:32,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967557643] [2024-06-28 01:05:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:32,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:32,136 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 01:05:32,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:32,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967557643] [2024-06-28 01:05:32,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967557643] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:32,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:32,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:05:32,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943411279] [2024-06-28 01:05:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:32,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:05:32,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:05:32,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:05:32,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-06-28 01:05:32,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 29 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 01:05:32,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:32,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-06-28 01:05:32,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:32,178 INFO L124 PetriNetUnfolderBase]: 13/62 cut-off events. [2024-06-28 01:05:32,178 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-06-28 01:05:32,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 62 events. 13/62 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs, 4 based on Foata normal form. 3/64 useless extension candidates. Maximal degree in co-relation 144. Up to 15 conditions per place. [2024-06-28 01:05:32,179 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 17 selfloop transitions, 6 changer transitions 0/34 dead transitions. [2024-06-28 01:05:32,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 34 transitions, 176 flow [2024-06-28 01:05:32,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:32,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2024-06-28 01:05:32,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5473684210526316 [2024-06-28 01:05:32,180 INFO L175 Difference]: Start difference. First operand has 44 places, 29 transitions, 118 flow. Second operand 5 states and 104 transitions. [2024-06-28 01:05:32,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 34 transitions, 176 flow [2024-06-28 01:05:32,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 157 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-28 01:05:32,181 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 109 flow [2024-06-28 01:05:32,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2024-06-28 01:05:32,182 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-06-28 01:05:32,182 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 109 flow [2024-06-28 01:05:32,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 01:05:32,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:32,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:32,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:05:32,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:32,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:32,183 INFO L85 PathProgramCache]: Analyzing trace with hash -57880470, now seen corresponding path program 1 times [2024-06-28 01:05:32,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:32,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747022189] [2024-06-28 01:05:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:32,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:32,264 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 01:05:32,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:32,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747022189] [2024-06-28 01:05:32,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747022189] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:32,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:32,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:32,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840755765] [2024-06-28 01:05:32,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:32,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:05:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:05:32,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:05:32,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-06-28 01:05:32,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 01:05:32,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:32,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-06-28 01:05:32,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:32,319 INFO L124 PetriNetUnfolderBase]: 15/62 cut-off events. [2024-06-28 01:05:32,319 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-06-28 01:05:32,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 62 events. 15/62 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 7 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 140. Up to 20 conditions per place. [2024-06-28 01:05:32,319 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 14 selfloop transitions, 4 changer transitions 8/31 dead transitions. [2024-06-28 01:05:32,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 162 flow [2024-06-28 01:05:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:05:32,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:05:32,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-06-28 01:05:32,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2024-06-28 01:05:32,322 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 109 flow. Second operand 6 states and 96 transitions. [2024-06-28 01:05:32,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 162 flow [2024-06-28 01:05:32,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 152 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 01:05:32,323 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 76 flow [2024-06-28 01:05:32,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2024-06-28 01:05:32,323 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-06-28 01:05:32,324 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 76 flow [2024-06-28 01:05:32,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 01:05:32,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:32,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:32,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-28 01:05:32,324 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-06-28 01:05:32,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:32,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1390080751, now seen corresponding path program 1 times [2024-06-28 01:05:32,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:32,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61116298] [2024-06-28 01:05:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:32,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:32,377 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 01:05:32,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:32,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61116298] [2024-06-28 01:05:32,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61116298] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:32,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:32,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:32,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615801234] [2024-06-28 01:05:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:32,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:05:32,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:32,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:05:32,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:05:32,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-06-28 01:05:32,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 01:05:32,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:32,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-06-28 01:05:32,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:32,436 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2024-06-28 01:05:32,437 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-06-28 01:05:32,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 41 events. 10/41 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 4 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 104. Up to 15 conditions per place. [2024-06-28 01:05:32,437 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-06-28 01:05:32,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 115 flow [2024-06-28 01:05:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-28 01:05:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-28 01:05:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 103 transitions. [2024-06-28 01:05:32,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38721804511278196 [2024-06-28 01:05:32,439 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 76 flow. Second operand 7 states and 103 transitions. [2024-06-28 01:05:32,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 115 flow [2024-06-28 01:05:32,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 95 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-06-28 01:05:32,440 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2024-06-28 01:05:32,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2024-06-28 01:05:32,440 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2024-06-28 01:05:32,440 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2024-06-28 01:05:32,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 01:05:32,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-06-28 01:05:32,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-28 01:05:32,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-06-28 01:05:32,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-06-28 01:05:32,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-06-28 01:05:32,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-06-28 01:05:32,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2024-06-28 01:05:32,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-06-28 01:05:32,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-28 01:05:32,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:32,448 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 01:05:32,448 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 01:05:32,451 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-28 01:05:32,451 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-28 01:05:32,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 01:05:32 BasicIcfg [2024-06-28 01:05:32,452 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 01:05:32,452 INFO L158 Benchmark]: Toolchain (without parser) took 2702.62ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 89.4MB in the beginning and 177.4MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:32,452 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:32,452 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:32,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.48ms. Allocated memory is still 151.0MB. Free memory was 89.4MB in the beginning and 64.8MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:32,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.25ms. Allocated memory is still 151.0MB. Free memory was 64.8MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:32,453 INFO L158 Benchmark]: Boogie Preprocessor took 57.33ms. Allocated memory is still 151.0MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:32,453 INFO L158 Benchmark]: RCFGBuilder took 459.88ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 60.6MB in the beginning and 173.2MB in the end (delta: -112.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-06-28 01:05:32,453 INFO L158 Benchmark]: TraceAbstraction took 1705.62ms. Allocated memory is still 218.1MB. Free memory was 173.2MB in the beginning and 177.4MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:32,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 151.0MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.48ms. Allocated memory is still 151.0MB. Free memory was 89.4MB in the beginning and 64.8MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.25ms. Allocated memory is still 151.0MB. Free memory was 64.8MB in the beginning and 62.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.33ms. Allocated memory is still 151.0MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.88ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 60.6MB in the beginning and 173.2MB in the end (delta: -112.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1705.62ms. Allocated memory is still 218.1MB. Free memory was 173.2MB in the beginning and 177.4MB in the end (delta: -4.2MB). There was no memory consumed. 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: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 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: 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, 50 locations, 8 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: 1.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 8 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=5, InterpolantAutomatonStates: 43, 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, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-28 01:05:32,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE