./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_29-multiple-protecting2-vesal_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_29-multiple-protecting2-vesal_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_29-multiple-protecting2-vesal_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 [2024-06-27 18:01:05,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:01:05,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:01:05,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:01:05,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:01:05,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:01:05,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:01:05,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:01:05,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:01:05,691 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:01:05,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:01:05,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:01:05,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:01:05,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:01:05,693 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:01:05,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:01:05,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:01:05,694 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:01:05,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:01:05,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:01:05,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:01:05,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:01:05,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:01:05,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:01:05,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:01:05,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:01:05,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:01:05,696 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:01:05,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:01:05,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:01:05,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:01:05,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:01:05,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:05,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:01:05,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:01:05,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:01:05,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:01:05,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:01:05,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:01:05,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:01:05,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:01:05,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:01:05,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:01:05,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:01:05,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:01:05,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:01:05,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:01:05,921 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:01:05,921 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:01:05,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-06-27 18:01:06,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:01:07,044 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:01:07,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-06-27 18:01:07,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/415ae9cbe/447326b0d83149618a70f5abb20ad2d7/FLAG72c803bb7 [2024-06-27 18:01:07,065 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/415ae9cbe/447326b0d83149618a70f5abb20ad2d7 [2024-06-27 18:01:07,068 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:01:07,068 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:01:07,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-06-27 18:01:07,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:01:07,152 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:01:07,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:07,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:01:07,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:01:07,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:07" (1/2) ... [2024-06-27 18:01:07,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615311ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:07, skipping insertion in model container [2024-06-27 18:01:07,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:07" (1/2) ... [2024-06-27 18:01:07,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bc6d83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:07, skipping insertion in model container [2024-06-27 18:01:07,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:07" (2/2) ... [2024-06-27 18:01:07,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615311ac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07, skipping insertion in model container [2024-06-27 18:01:07,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:07" (2/2) ... [2024-06-27 18:01:07,160 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:01:07,190 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:01:07,191 INFO L97 edCorrectnessWitness]: Location invariant before [L699-L699] ! multithreaded || 0 <= g2 [2024-06-27 18:01:07,191 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-27 18:01:07,191 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-27 18:01:07,192 INFO L103 edCorrectnessWitness]: ghost_variable __global_lock_locked = 0 [2024-06-27 18:01:07,192 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:01:07,192 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] __global_lock_locked = 0; [2024-06-27 18:01:07,192 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] __global_lock_locked = 0; [2024-06-27 18:01:07,192 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] mutex1_locked = 1; [2024-06-27 18:01:07,192 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] mutex1_locked = 0; [2024-06-27 18:01:07,192 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] mutex2_locked = 0; [2024-06-27 18:01:07,192 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] __global_lock_locked = 1; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] __global_lock_locked = 1; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L705-L705] __global_lock_locked = 1; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] mutex2_locked = 1; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] multithreaded = 1; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] __global_lock_locked = 0; [2024-06-27 18:01:07,193 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] __global_lock_locked = 0; [2024-06-27 18:01:07,194 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] mutex2_locked = 0; [2024-06-27 18:01:07,194 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] __global_lock_locked = 1; [2024-06-27 18:01:07,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:01:07,358 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-06-27 18:01:07,466 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:07,475 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:07,509 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_29-multiple-protecting2-vesal_true.i[1103,1116] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:07,542 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:07,566 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:01:07,567 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07 WrapperNode [2024-06-27 18:01:07,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:07,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:07,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:01:07,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:01:07,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,595 INFO L138 Inliner]: procedures = 162, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 97 [2024-06-27 18:01:07,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:07,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:01:07,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:01:07,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:01:07,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,614 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-06-27 18:01:07,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:01:07,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:01:07,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:01:07,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:01:07,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (1/1) ... [2024-06-27 18:01:07,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:07,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:01:07,667 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) [2024-06-27 18:01:07,676 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 [2024-06-27 18:01:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-06-27 18:01:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-06-27 18:01:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 18:01:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:01:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:01:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 18:01:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 18:01:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-27 18:01:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 18:01:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:01:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:01:07,702 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 18:01:07,830 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:01:07,832 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:01:08,008 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:01:08,008 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:01:08,143 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:01:08,145 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:01:08,146 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:08 BoogieIcfgContainer [2024-06-27 18:01:08,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:01:08,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:01:08,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:01:08,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:01:08,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:01:07" (1/4) ... [2024-06-27 18:01:08,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c023d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:08, skipping insertion in model container [2024-06-27 18:01:08,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:07" (2/4) ... [2024-06-27 18:01:08,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c023d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:08, skipping insertion in model container [2024-06-27 18:01:08,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:07" (3/4) ... [2024-06-27 18:01:08,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c023d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:08, skipping insertion in model container [2024-06-27 18:01:08,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:08" (4/4) ... [2024-06-27 18:01:08,152 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-06-27 18:01:08,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:01:08,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-27 18:01:08,165 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:01:08,200 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-27 18:01:08,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 53 transitions, 113 flow [2024-06-27 18:01:08,269 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2024-06-27 18:01:08,270 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 18:01:08,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 52 events. 3/52 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-06-27 18:01:08,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 53 transitions, 113 flow [2024-06-27 18:01:08,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 41 transitions, 85 flow [2024-06-27 18:01:08,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:01:08,296 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;@177223ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:01:08,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 18:01:08,302 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:01:08,302 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 18:01:08,302 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:08,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:08,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:01:08,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:08,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 293757406, now seen corresponding path program 1 times [2024-06-27 18:01:08,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:08,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410654283] [2024-06-27 18:01:08,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:08,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:08,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:08,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410654283] [2024-06-27 18:01:08,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410654283] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:08,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:08,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:01:08,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824090849] [2024-06-27 18:01:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:08,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:08,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-06-27 18:01:08,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:08,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:08,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-06-27 18:01:08,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:08,722 INFO L124 PetriNetUnfolderBase]: 96/276 cut-off events. [2024-06-27 18:01:08,723 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 18:01:08,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 276 events. 96/276 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1244 event pairs, 26 based on Foata normal form. 23/290 useless extension candidates. Maximal degree in co-relation 485. Up to 161 conditions per place. [2024-06-27 18:01:08,725 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 30 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-06-27 18:01:08,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 165 flow [2024-06-27 18:01:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-06-27 18:01:08,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6477987421383647 [2024-06-27 18:01:08,735 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 85 flow. Second operand 3 states and 103 transitions. [2024-06-27 18:01:08,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 165 flow [2024-06-27 18:01:08,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:01:08,738 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 88 flow [2024-06-27 18:01:08,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2024-06-27 18:01:08,742 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-06-27 18:01:08,742 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 88 flow [2024-06-27 18:01:08,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:08,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:08,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:08,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:01:08,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:08,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:08,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1687957583, now seen corresponding path program 1 times [2024-06-27 18:01:08,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:08,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190562268] [2024-06-27 18:01:08,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:08,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:08,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:08,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190562268] [2024-06-27 18:01:08,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190562268] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:08,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:01:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615723524] [2024-06-27 18:01:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:08,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:01:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:01:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:01:08,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-06-27 18:01:08,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-06-27 18:01:08,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:08,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-06-27 18:01:08,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:08,873 INFO L124 PetriNetUnfolderBase]: 93/269 cut-off events. [2024-06-27 18:01:08,873 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-06-27 18:01:08,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 269 events. 93/269 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1210 event pairs, 23 based on Foata normal form. 3/263 useless extension candidates. Maximal degree in co-relation 498. Up to 92 conditions per place. [2024-06-27 18:01:08,875 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 39 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-06-27 18:01:08,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 212 flow [2024-06-27 18:01:08,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:01:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:01:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-06-27 18:01:08,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6179245283018868 [2024-06-27 18:01:08,876 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 88 flow. Second operand 4 states and 131 transitions. [2024-06-27 18:01:08,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 212 flow [2024-06-27 18:01:08,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 59 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:08,878 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 94 flow [2024-06-27 18:01:08,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-06-27 18:01:08,878 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 4 predicate places. [2024-06-27 18:01:08,878 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 94 flow [2024-06-27 18:01:08,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-06-27 18:01:08,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:08,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:08,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:01:08,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:08,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:08,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1873706974, now seen corresponding path program 1 times [2024-06-27 18:01:08,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:08,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946452534] [2024-06-27 18:01:08,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:08,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:08,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:08,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946452534] [2024-06-27 18:01:08,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946452534] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:08,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:08,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:08,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595434918] [2024-06-27 18:01:08,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:08,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:01:08,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:08,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:01:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:01:08,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-06-27 18:01:08,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-06-27 18:01:08,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:08,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-06-27 18:01:08,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:09,105 INFO L124 PetriNetUnfolderBase]: 135/355 cut-off events. [2024-06-27 18:01:09,105 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-06-27 18:01:09,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 355 events. 135/355 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1585 event pairs, 64 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 716. Up to 128 conditions per place. [2024-06-27 18:01:09,110 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 40 selfloop transitions, 11 changer transitions 0/63 dead transitions. [2024-06-27 18:01:09,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 63 transitions, 251 flow [2024-06-27 18:01:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:09,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-06-27 18:01:09,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018867924528302 [2024-06-27 18:01:09,117 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 94 flow. Second operand 5 states and 133 transitions. [2024-06-27 18:01:09,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 63 transitions, 251 flow [2024-06-27 18:01:09,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 63 transitions, 241 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 18:01:09,119 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 153 flow [2024-06-27 18:01:09,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-06-27 18:01:09,121 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-06-27 18:01:09,121 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 153 flow [2024-06-27 18:01:09,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-06-27 18:01:09,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:09,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:09,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:01:09,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:09,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1041048810, now seen corresponding path program 1 times [2024-06-27 18:01:09,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:09,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707364853] [2024-06-27 18:01:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:09,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:09,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707364853] [2024-06-27 18:01:09,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707364853] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:09,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:09,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:09,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796491634] [2024-06-27 18:01:09,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:09,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:01:09,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:09,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:01:09,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:01:09,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-06-27 18:01:09,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-06-27 18:01:09,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:09,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-06-27 18:01:09,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:09,320 INFO L124 PetriNetUnfolderBase]: 138/359 cut-off events. [2024-06-27 18:01:09,321 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-06-27 18:01:09,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 359 events. 138/359 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1651 event pairs, 34 based on Foata normal form. 10/367 useless extension candidates. Maximal degree in co-relation 845. Up to 184 conditions per place. [2024-06-27 18:01:09,323 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 47 selfloop transitions, 14 changer transitions 0/73 dead transitions. [2024-06-27 18:01:09,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 73 transitions, 369 flow [2024-06-27 18:01:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-06-27 18:01:09,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094339622641509 [2024-06-27 18:01:09,325 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 153 flow. Second operand 5 states and 135 transitions. [2024-06-27 18:01:09,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 73 transitions, 369 flow [2024-06-27 18:01:09,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 73 transitions, 369 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-27 18:01:09,330 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 246 flow [2024-06-27 18:01:09,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=246, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2024-06-27 18:01:09,331 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-06-27 18:01:09,331 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 246 flow [2024-06-27 18:01:09,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-06-27 18:01:09,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:09,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:09,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:01:09,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:09,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:09,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1628004493, now seen corresponding path program 1 times [2024-06-27 18:01:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:09,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669978725] [2024-06-27 18:01:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:09,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:09,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:09,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669978725] [2024-06-27 18:01:09,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669978725] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:09,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:09,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:09,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842699355] [2024-06-27 18:01:09,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:09,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:01:09,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:09,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:01:09,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:01:09,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-06-27 18:01:09,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-06-27 18:01:09,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:09,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-06-27 18:01:09,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:09,473 INFO L124 PetriNetUnfolderBase]: 99/289 cut-off events. [2024-06-27 18:01:09,473 INFO L125 PetriNetUnfolderBase]: For 298/307 co-relation queries the response was YES. [2024-06-27 18:01:09,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 289 events. 99/289 cut-off events. For 298/307 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1327 event pairs, 25 based on Foata normal form. 5/289 useless extension candidates. Maximal degree in co-relation 748. Up to 97 conditions per place. [2024-06-27 18:01:09,475 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 38 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2024-06-27 18:01:09,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 357 flow [2024-06-27 18:01:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2024-06-27 18:01:09,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5735849056603773 [2024-06-27 18:01:09,476 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 246 flow. Second operand 5 states and 152 transitions. [2024-06-27 18:01:09,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 357 flow [2024-06-27 18:01:09,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 348 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:09,500 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 238 flow [2024-06-27 18:01:09,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-06-27 18:01:09,502 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-06-27 18:01:09,502 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 238 flow [2024-06-27 18:01:09,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-06-27 18:01:09,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:09,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:09,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:01:09,503 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:09,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash -640393853, now seen corresponding path program 1 times [2024-06-27 18:01:09,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:09,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084846641] [2024-06-27 18:01:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:09,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:09,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:09,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084846641] [2024-06-27 18:01:09,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084846641] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:09,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:09,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:01:09,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207825462] [2024-06-27 18:01:09,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:09,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:01:09,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:01:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:01:09,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-06-27 18:01:09,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-06-27 18:01:09,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:09,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-06-27 18:01:09,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:09,665 INFO L124 PetriNetUnfolderBase]: 131/347 cut-off events. [2024-06-27 18:01:09,665 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-06-27 18:01:09,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 347 events. 131/347 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1518 event pairs, 34 based on Foata normal form. 17/362 useless extension candidates. Maximal degree in co-relation 940. Up to 154 conditions per place. [2024-06-27 18:01:09,667 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 46 selfloop transitions, 10 changer transitions 1/68 dead transitions. [2024-06-27 18:01:09,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 417 flow [2024-06-27 18:01:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:01:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:01:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-06-27 18:01:09,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4591194968553459 [2024-06-27 18:01:09,669 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 238 flow. Second operand 6 states and 146 transitions. [2024-06-27 18:01:09,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 417 flow [2024-06-27 18:01:09,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 402 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 18:01:09,671 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 287 flow [2024-06-27 18:01:09,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=287, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2024-06-27 18:01:09,672 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-06-27 18:01:09,672 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 287 flow [2024-06-27 18:01:09,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-06-27 18:01:09,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:09,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 18:01:09,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:09,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1878134059, now seen corresponding path program 1 times [2024-06-27 18:01:09,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:09,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431082779] [2024-06-27 18:01:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:09,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431082779] [2024-06-27 18:01:09,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431082779] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:09,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:09,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:01:09,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077866133] [2024-06-27 18:01:09,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:09,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:01:09,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:09,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:01:09,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:01:09,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-06-27 18:01:09,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 287 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-06-27 18:01:09,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:09,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-06-27 18:01:09,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:09,822 INFO L124 PetriNetUnfolderBase]: 126/321 cut-off events. [2024-06-27 18:01:09,823 INFO L125 PetriNetUnfolderBase]: For 499/499 co-relation queries the response was YES. [2024-06-27 18:01:09,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 992 conditions, 321 events. 126/321 cut-off events. For 499/499 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1355 event pairs, 20 based on Foata normal form. 4/323 useless extension candidates. Maximal degree in co-relation 967. Up to 84 conditions per place. [2024-06-27 18:01:09,825 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 47 selfloop transitions, 17 changer transitions 0/74 dead transitions. [2024-06-27 18:01:09,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 74 transitions, 492 flow [2024-06-27 18:01:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 18:01:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 18:01:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2024-06-27 18:01:09,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44339622641509435 [2024-06-27 18:01:09,826 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 287 flow. Second operand 8 states and 188 transitions. [2024-06-27 18:01:09,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 74 transitions, 492 flow [2024-06-27 18:01:09,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 74 transitions, 456 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-06-27 18:01:09,829 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 290 flow [2024-06-27 18:01:09,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=290, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2024-06-27 18:01:09,830 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-06-27 18:01:09,830 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 290 flow [2024-06-27 18:01:09,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-06-27 18:01:09,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:09,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:09,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 18:01:09,830 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:09,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:09,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1067615418, now seen corresponding path program 1 times [2024-06-27 18:01:09,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:09,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987496584] [2024-06-27 18:01:09,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:09,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:09,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:09,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987496584] [2024-06-27 18:01:09,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987496584] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:09,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:09,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 18:01:09,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281816489] [2024-06-27 18:01:09,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:09,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 18:01:09,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:09,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 18:01:09,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-27 18:01:09,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-06-27 18:01:09,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 290 flow. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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) [2024-06-27 18:01:09,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:09,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-06-27 18:01:09,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:10,048 INFO L124 PetriNetUnfolderBase]: 53/193 cut-off events. [2024-06-27 18:01:10,049 INFO L125 PetriNetUnfolderBase]: For 242/242 co-relation queries the response was YES. [2024-06-27 18:01:10,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 193 events. 53/193 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 726 event pairs, 16 based on Foata normal form. 19/208 useless extension candidates. Maximal degree in co-relation 527. Up to 77 conditions per place. [2024-06-27 18:01:10,050 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 29 selfloop transitions, 10 changer transitions 0/55 dead transitions. [2024-06-27 18:01:10,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 55 transitions, 366 flow [2024-06-27 18:01:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:10,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 147 transitions. [2024-06-27 18:01:10,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5547169811320755 [2024-06-27 18:01:10,051 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 290 flow. Second operand 5 states and 147 transitions. [2024-06-27 18:01:10,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 55 transitions, 366 flow [2024-06-27 18:01:10,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 55 transitions, 313 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-06-27 18:01:10,053 INFO L231 Difference]: Finished difference. Result has 59 places, 46 transitions, 231 flow [2024-06-27 18:01:10,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=231, PETRI_PLACES=59, PETRI_TRANSITIONS=46} [2024-06-27 18:01:10,055 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-06-27 18:01:10,055 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 231 flow [2024-06-27 18:01:10,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 7 states have internal predecessors, (171), 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) [2024-06-27 18:01:10,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:10,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:10,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 18:01:10,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:10,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:10,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1668447058, now seen corresponding path program 1 times [2024-06-27 18:01:10,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:10,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589001637] [2024-06-27 18:01:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:10,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:10,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589001637] [2024-06-27 18:01:10,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589001637] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:10,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:10,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 18:01:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486255614] [2024-06-27 18:01:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:10,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 18:01:10,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:10,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 18:01:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 18:01:10,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-06-27 18:01:10,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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) [2024-06-27 18:01:10,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:10,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-06-27 18:01:10,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:10,264 INFO L124 PetriNetUnfolderBase]: 42/163 cut-off events. [2024-06-27 18:01:10,264 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-06-27 18:01:10,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 163 events. 42/163 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 526 event pairs, 8 based on Foata normal form. 9/171 useless extension candidates. Maximal degree in co-relation 459. Up to 72 conditions per place. [2024-06-27 18:01:10,265 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 35 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2024-06-27 18:01:10,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 369 flow [2024-06-27 18:01:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 18:01:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 18:01:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-06-27 18:01:10,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5801886792452831 [2024-06-27 18:01:10,266 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 231 flow. Second operand 4 states and 123 transitions. [2024-06-27 18:01:10,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 369 flow [2024-06-27 18:01:10,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 364 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:10,268 INFO L231 Difference]: Finished difference. Result has 60 places, 46 transitions, 236 flow [2024-06-27 18:01:10,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=60, PETRI_TRANSITIONS=46} [2024-06-27 18:01:10,268 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-06-27 18:01:10,268 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 46 transitions, 236 flow [2024-06-27 18:01:10,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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) [2024-06-27 18:01:10,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:10,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:10,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 18:01:10,269 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 18:01:10,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash 727818891, now seen corresponding path program 1 times [2024-06-27 18:01:10,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:10,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96681074] [2024-06-27 18:01:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:10,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:10,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:10,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96681074] [2024-06-27 18:01:10,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96681074] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:10,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:10,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 18:01:10,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214518773] [2024-06-27 18:01:10,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:10,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 18:01:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 18:01:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 18:01:10,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-06-27 18:01:10,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 46 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:10,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:10,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-06-27 18:01:10,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:10,458 INFO L124 PetriNetUnfolderBase]: 50/168 cut-off events. [2024-06-27 18:01:10,458 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-06-27 18:01:10,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 168 events. 50/168 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 555 event pairs, 21 based on Foata normal form. 2/167 useless extension candidates. Maximal degree in co-relation 533. Up to 75 conditions per place. [2024-06-27 18:01:10,459 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-06-27 18:01:10,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 343 flow [2024-06-27 18:01:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 18:01:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 18:01:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2024-06-27 18:01:10,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41509433962264153 [2024-06-27 18:01:10,462 INFO L175 Difference]: Start difference. First operand has 60 places, 46 transitions, 236 flow. Second operand 6 states and 132 transitions. [2024-06-27 18:01:10,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 343 flow [2024-06-27 18:01:10,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:10,464 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-06-27 18:01:10,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-06-27 18:01:10,465 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-06-27 18:01:10,465 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-06-27 18:01:10,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:10,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-06-27 18:01:10,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-06-27 18:01:10,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-06-27 18:01:10,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-06-27 18:01:10,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-06-27 18:01:10,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 18:01:10,470 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:10,472 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 18:01:10,473 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 18:01:10,476 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 18:01:10,476 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 18:01:10,476 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 06:01:10 BasicIcfg [2024-06-27 18:01:10,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 18:01:10,477 INFO L158 Benchmark]: Toolchain (without parser) took 3324.96ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 74.9MB in the beginning and 168.5MB in the end (delta: -93.6MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2024-06-27 18:01:10,478 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 80.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:10,478 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 148.9MB. Free memory was 79.0MB in the beginning and 78.8MB in the end (delta: 111.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:10,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.43ms. Allocated memory is still 148.9MB. Free memory was 74.7MB in the beginning and 107.7MB in the end (delta: -33.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-06-27 18:01:10,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:10,481 INFO L158 Benchmark]: Boogie Preprocessor took 39.15ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 103.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:10,481 INFO L158 Benchmark]: RCFGBuilder took 510.80ms. Allocated memory is still 148.9MB. Free memory was 103.1MB in the beginning and 68.0MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-06-27 18:01:10,481 INFO L158 Benchmark]: TraceAbstraction took 2329.03ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 67.0MB in the beginning and 168.5MB in the end (delta: -101.6MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2024-06-27 18:01:10,483 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory was 68.9MB in the beginning and 68.9MB in the end (delta: 80.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 148.9MB. Free memory was 79.0MB in the beginning and 78.8MB in the end (delta: 111.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.43ms. Allocated memory is still 148.9MB. Free memory was 74.7MB in the beginning and 107.7MB in the end (delta: -33.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 148.9MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.15ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 103.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.80ms. Allocated memory is still 148.9MB. Free memory was 103.1MB in the beginning and 68.0MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2329.03ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 67.0MB in the beginning and 168.5MB in the end (delta: -101.6MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: 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, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 413 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 811 IncrementalHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 46 mSDtfsCounter, 811 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=7, InterpolantAutomatonStates: 51, 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, 0.8s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 18:01:10,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE