./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe031_tso.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/pthread-wmm/safe031_tso.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe031_tso.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 21:54:11,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 21:54:11,753 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 21:54:11,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 21:54:11,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 21:54:11,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 21:54:11,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 21:54:11,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 21:54:11,799 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 21:54:11,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 21:54:11,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 21:54:11,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 21:54:11,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 21:54:11,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 21:54:11,801 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 21:54:11,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 21:54:11,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 21:54:11,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 21:54:11,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 21:54:11,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 21:54:11,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 21:54:11,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 21:54:11,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 21:54:11,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 21:54:11,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 21:54:11,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 21:54:11,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 21:54:11,810 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 21:54:11,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 21:54:11,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 21:54:11,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 21:54:11,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 21:54:11,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:54:11,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 21:54:11,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 21:54:11,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 21:54:11,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 21:54:11,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 21:54:11,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 21:54:11,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 21:54:11,814 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 21:54:11,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 21:54:11,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 21:54:11,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 21:54:12,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 21:54:12,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 21:54:12,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 21:54:12,120 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 21:54:12,121 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 21:54:12,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe031_tso.yml/witness.yml [2024-06-27 21:54:12,209 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 21:54:12,210 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 21:54:12,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-06-27 21:54:13,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 21:54:13,644 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 21:54:13,645 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-06-27 21:54:13,663 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa89135e/88610c8999a140d2817c1e9a65900cea/FLAGf6ecae594 [2024-06-27 21:54:13,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daa89135e/88610c8999a140d2817c1e9a65900cea [2024-06-27 21:54:13,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 21:54:13,683 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 21:54:13,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 21:54:13,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 21:54:13,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 21:54:13,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:54:12" (1/2) ... [2024-06-27 21:54:13,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ec6288 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:54:13, skipping insertion in model container [2024-06-27 21:54:13,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:54:12" (1/2) ... [2024-06-27 21:54:13,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7003b1b1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:54:13, skipping insertion in model container [2024-06-27 21:54:13,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:54:13" (2/2) ... [2024-06-27 21:54:13,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ec6288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:13, skipping insertion in model container [2024-06-27 21:54:13,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:54:13" (2/2) ... [2024-06-27 21:54:13,696 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 21:54:13,718 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 21:54:13,719 INFO L97 edCorrectnessWitness]: Location invariant before [L781-L781] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-27 21:54:13,719 INFO L97 edCorrectnessWitness]: Location invariant before [L783-L783] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-27 21:54:13,719 INFO L97 edCorrectnessWitness]: Location invariant before [L784-L784] ! multithreaded || (0LL - (long long )__unbuffered_p0_EAX) + (long long )x >= 0LL [2024-06-27 21:54:13,719 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 21:54:13,720 INFO L106 edCorrectnessWitness]: ghost_update [L779-L779] multithreaded = 1; [2024-06-27 21:54:13,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 21:54:13,963 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i[945,958] [2024-06-27 21:54:14,131 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:54:14,141 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 21:54:14,180 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i[945,958] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 21:54:14,239 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:54:14,285 INFO L206 MainTranslator]: Completed translation [2024-06-27 21:54:14,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14 WrapperNode [2024-06-27 21:54:14,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 21:54:14,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 21:54:14,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 21:54:14,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 21:54:14,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,347 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-06-27 21:54:14,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 21:54:14,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 21:54:14,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 21:54:14,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 21:54:14,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,383 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 21:54:14,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,392 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 21:54:14,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 21:54:14,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 21:54:14,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 21:54:14,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (1/1) ... [2024-06-27 21:54:14,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:54:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 21:54:14,431 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 21:54:14,432 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 21:54:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 21:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 21:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 21:54:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 21:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 21:54:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 21:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 21:54:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 21:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 21:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 21:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 21:54:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 21:54:14,510 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 21:54:14,632 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 21:54:14,634 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 21:54:14,751 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 21:54:14,751 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 21:54:14,812 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 21:54:14,813 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 21:54:14,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:54:14 BoogieIcfgContainer [2024-06-27 21:54:14,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 21:54:14,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 21:54:14,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 21:54:14,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 21:54:14,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:54:12" (1/4) ... [2024-06-27 21:54:14,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171099cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 09:54:14, skipping insertion in model container [2024-06-27 21:54:14,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 09:54:13" (2/4) ... [2024-06-27 21:54:14,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171099cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:54:14, skipping insertion in model container [2024-06-27 21:54:14,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:54:14" (3/4) ... [2024-06-27 21:54:14,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171099cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:54:14, skipping insertion in model container [2024-06-27 21:54:14,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:54:14" (4/4) ... [2024-06-27 21:54:14,820 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2024-06-27 21:54:14,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 21:54:14,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-27 21:54:14,834 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 21:54:14,878 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 21:54:14,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 46 transitions, 104 flow [2024-06-27 21:54:14,928 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2024-06-27 21:54:14,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:54:14,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-06-27 21:54:14,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 46 transitions, 104 flow [2024-06-27 21:54:14,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 40 transitions, 89 flow [2024-06-27 21:54:14,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 21:54:14,947 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;@461b478e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 21:54:14,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-06-27 21:54:14,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 21:54:14,950 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 21:54:14,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:54:14,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:14,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 21:54:14,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:14,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:14,956 INFO L85 PathProgramCache]: Analyzing trace with hash 210328679, now seen corresponding path program 1 times [2024-06-27 21:54:14,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:14,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981179692] [2024-06-27 21:54:14,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:14,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:15,153 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 21:54:15,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981179692] [2024-06-27 21:54:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981179692] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:15,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 21:54:15,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033226379] [2024-06-27 21:54:15,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:15,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 21:54:15,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 21:54:15,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 21:54:15,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2024-06-27 21:54:15,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 21:54:15,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:15,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2024-06-27 21:54:15,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:15,351 INFO L124 PetriNetUnfolderBase]: 109/303 cut-off events. [2024-06-27 21:54:15,351 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-27 21:54:15,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 303 events. 109/303 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1786 event pairs, 25 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 508. Up to 147 conditions per place. [2024-06-27 21:54:15,358 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 23 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2024-06-27 21:54:15,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 156 flow [2024-06-27 21:54:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 21:54:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 21:54:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-06-27 21:54:15,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7681159420289855 [2024-06-27 21:54:15,369 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 89 flow. Second operand 3 states and 106 transitions. [2024-06-27 21:54:15,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 47 transitions, 156 flow [2024-06-27 21:54:15,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 152 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 21:54:15,374 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 94 flow [2024-06-27 21:54:15,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, 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=94, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-06-27 21:54:15,380 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2024-06-27 21:54:15,380 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 94 flow [2024-06-27 21:54:15,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 21:54:15,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:15,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:15,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 21:54:15,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:15,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:15,388 INFO L85 PathProgramCache]: Analyzing trace with hash 478217699, now seen corresponding path program 1 times [2024-06-27 21:54:15,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:15,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489063408] [2024-06-27 21:54:15,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:15,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:15,505 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 21:54:15,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:15,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489063408] [2024-06-27 21:54:15,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489063408] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:15,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:15,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 21:54:15,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212614523] [2024-06-27 21:54:15,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:15,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:54:15,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:15,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:54:15,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:54:15,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 46 [2024-06-27 21:54:15,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 21:54:15,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:15,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 46 [2024-06-27 21:54:15,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:15,631 INFO L124 PetriNetUnfolderBase]: 173/417 cut-off events. [2024-06-27 21:54:15,631 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-06-27 21:54:15,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 417 events. 173/417 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2349 event pairs, 71 based on Foata normal form. 6/404 useless extension candidates. Maximal degree in co-relation 808. Up to 229 conditions per place. [2024-06-27 21:54:15,635 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 34 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-06-27 21:54:15,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 219 flow [2024-06-27 21:54:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-06-27 21:54:15,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2024-06-27 21:54:15,638 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 94 flow. Second operand 4 states and 140 transitions. [2024-06-27 21:54:15,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 219 flow [2024-06-27 21:54:15,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:15,641 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 114 flow [2024-06-27 21:54:15,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-06-27 21:54:15,642 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2024-06-27 21:54:15,642 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 114 flow [2024-06-27 21:54:15,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 21:54:15,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:15,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:15,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 21:54:15,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:15,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:15,654 INFO L85 PathProgramCache]: Analyzing trace with hash -890009311, now seen corresponding path program 1 times [2024-06-27 21:54:15,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:15,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234008732] [2024-06-27 21:54:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:15,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:15,761 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 21:54:15,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:15,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234008732] [2024-06-27 21:54:15,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234008732] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:15,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:15,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:54:15,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720107512] [2024-06-27 21:54:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:15,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:15,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:15,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:15,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 46 [2024-06-27 21:54:15,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 21:54:15,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:15,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 46 [2024-06-27 21:54:15,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:15,922 INFO L124 PetriNetUnfolderBase]: 225/575 cut-off events. [2024-06-27 21:54:15,923 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-06-27 21:54:15,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 575 events. 225/575 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3586 event pairs, 71 based on Foata normal form. 12/568 useless extension candidates. Maximal degree in co-relation 1165. Up to 166 conditions per place. [2024-06-27 21:54:15,929 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 33 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2024-06-27 21:54:15,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 226 flow [2024-06-27 21:54:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-06-27 21:54:15,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-06-27 21:54:15,936 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 114 flow. Second operand 4 states and 138 transitions. [2024-06-27 21:54:15,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 226 flow [2024-06-27 21:54:15,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 223 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 21:54:15,940 INFO L231 Difference]: Finished difference. Result has 55 places, 41 transitions, 126 flow [2024-06-27 21:54:15,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2024-06-27 21:54:15,942 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 5 predicate places. [2024-06-27 21:54:15,942 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 126 flow [2024-06-27 21:54:15,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 21:54:15,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:15,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:15,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 21:54:15,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:15,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash 260130823, now seen corresponding path program 2 times [2024-06-27 21:54:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:15,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935091426] [2024-06-27 21:54:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:15,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:16,034 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 21:54:16,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935091426] [2024-06-27 21:54:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935091426] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:16,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:16,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:54:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270325298] [2024-06-27 21:54:16,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:16,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:54:16,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:54:16,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:54:16,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 46 [2024-06-27 21:54:16,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 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 21:54:16,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:16,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 46 [2024-06-27 21:54:16,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:16,146 INFO L124 PetriNetUnfolderBase]: 209/547 cut-off events. [2024-06-27 21:54:16,147 INFO L125 PetriNetUnfolderBase]: For 349/349 co-relation queries the response was YES. [2024-06-27 21:54:16,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 547 events. 209/547 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3382 event pairs, 65 based on Foata normal form. 12/546 useless extension candidates. Maximal degree in co-relation 1126. Up to 166 conditions per place. [2024-06-27 21:54:16,151 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 32 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2024-06-27 21:54:16,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 56 transitions, 218 flow [2024-06-27 21:54:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-06-27 21:54:16,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2024-06-27 21:54:16,153 INFO L175 Difference]: Start difference. First operand has 55 places, 41 transitions, 126 flow. Second operand 4 states and 136 transitions. [2024-06-27 21:54:16,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 56 transitions, 218 flow [2024-06-27 21:54:16,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 202 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-27 21:54:16,158 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 100 flow [2024-06-27 21:54:16,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=47, 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=100, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2024-06-27 21:54:16,160 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2024-06-27 21:54:16,160 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 100 flow [2024-06-27 21:54:16,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 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 21:54:16,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:16,161 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 21:54:16,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 21:54:16,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:16,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2074257630, now seen corresponding path program 1 times [2024-06-27 21:54:16,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63377681] [2024-06-27 21:54:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:16,354 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 21:54:16,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:16,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63377681] [2024-06-27 21:54:16,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63377681] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:16,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:16,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:54:16,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743373716] [2024-06-27 21:54:16,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:16,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:16,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:16,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:16,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:16,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 46 [2024-06-27 21:54:16,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 21:54:16,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:16,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 46 [2024-06-27 21:54:16,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:16,837 INFO L124 PetriNetUnfolderBase]: 1749/3421 cut-off events. [2024-06-27 21:54:16,837 INFO L125 PetriNetUnfolderBase]: For 640/640 co-relation queries the response was YES. [2024-06-27 21:54:16,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6477 conditions, 3421 events. 1749/3421 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 26024 event pairs, 485 based on Foata normal form. 112/3466 useless extension candidates. Maximal degree in co-relation 6465. Up to 1080 conditions per place. [2024-06-27 21:54:16,857 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 34 selfloop transitions, 7 changer transitions 39/97 dead transitions. [2024-06-27 21:54:16,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 97 transitions, 405 flow [2024-06-27 21:54:16,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:54:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:54:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-06-27 21:54:16,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-06-27 21:54:16,860 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 100 flow. Second operand 7 states and 230 transitions. [2024-06-27 21:54:16,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 97 transitions, 405 flow [2024-06-27 21:54:16,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 97 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:16,863 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 185 flow [2024-06-27 21:54:16,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=185, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2024-06-27 21:54:16,864 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 10 predicate places. [2024-06-27 21:54:16,864 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 185 flow [2024-06-27 21:54:16,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 21:54:16,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:16,864 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 21:54:16,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 21:54:16,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:16,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash 108725899, now seen corresponding path program 1 times [2024-06-27 21:54:16,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:16,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640243332] [2024-06-27 21:54:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:16,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:17,014 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 21:54:17,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:17,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640243332] [2024-06-27 21:54:17,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640243332] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:17,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:17,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:54:17,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560737898] [2024-06-27 21:54:17,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:17,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:54:17,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:17,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:54:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:54:17,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 46 [2024-06-27 21:54:17,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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 21:54:17,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:17,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 46 [2024-06-27 21:54:17,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:17,448 INFO L124 PetriNetUnfolderBase]: 1512/3020 cut-off events. [2024-06-27 21:54:17,449 INFO L125 PetriNetUnfolderBase]: For 3887/3889 co-relation queries the response was YES. [2024-06-27 21:54:17,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8549 conditions, 3020 events. 1512/3020 cut-off events. For 3887/3889 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 23197 event pairs, 188 based on Foata normal form. 92/3095 useless extension candidates. Maximal degree in co-relation 8530. Up to 1008 conditions per place. [2024-06-27 21:54:17,469 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 40 selfloop transitions, 11 changer transitions 46/114 dead transitions. [2024-06-27 21:54:17,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 114 transitions, 751 flow [2024-06-27 21:54:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 21:54:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 21:54:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2024-06-27 21:54:17,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6717391304347826 [2024-06-27 21:54:17,472 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 185 flow. Second operand 10 states and 309 transitions. [2024-06-27 21:54:17,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 114 transitions, 751 flow [2024-06-27 21:54:17,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 114 transitions, 707 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:54:17,486 INFO L231 Difference]: Finished difference. Result has 71 places, 50 transitions, 258 flow [2024-06-27 21:54:17,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=258, PETRI_PLACES=71, PETRI_TRANSITIONS=50} [2024-06-27 21:54:17,489 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 21 predicate places. [2024-06-27 21:54:17,489 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 50 transitions, 258 flow [2024-06-27 21:54:17,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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 21:54:17,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:17,490 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 21:54:17,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 21:54:17,490 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:17,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:17,491 INFO L85 PathProgramCache]: Analyzing trace with hash -41806599, now seen corresponding path program 1 times [2024-06-27 21:54:17,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:17,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117255075] [2024-06-27 21:54:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:17,638 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 21:54:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:17,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117255075] [2024-06-27 21:54:17,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117255075] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:17,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:17,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:54:17,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212327316] [2024-06-27 21:54:17,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:17,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:17,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:17,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:17,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:17,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 46 [2024-06-27 21:54:17,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 50 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 21:54:17,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:17,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 46 [2024-06-27 21:54:17,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:17,930 INFO L124 PetriNetUnfolderBase]: 1082/2376 cut-off events. [2024-06-27 21:54:17,931 INFO L125 PetriNetUnfolderBase]: For 6713/6809 co-relation queries the response was YES. [2024-06-27 21:54:17,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7286 conditions, 2376 events. 1082/2376 cut-off events. For 6713/6809 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 18685 event pairs, 441 based on Foata normal form. 111/2360 useless extension candidates. Maximal degree in co-relation 7259. Up to 1166 conditions per place. [2024-06-27 21:54:17,950 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 27 selfloop transitions, 6 changer transitions 25/87 dead transitions. [2024-06-27 21:54:17,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 87 transitions, 568 flow [2024-06-27 21:54:17,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:54:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:54:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 225 transitions. [2024-06-27 21:54:17,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6987577639751553 [2024-06-27 21:54:17,952 INFO L175 Difference]: Start difference. First operand has 71 places, 50 transitions, 258 flow. Second operand 7 states and 225 transitions. [2024-06-27 21:54:17,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 87 transitions, 568 flow [2024-06-27 21:54:17,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 530 flow, removed 19 selfloop flow, removed 6 redundant places. [2024-06-27 21:54:17,984 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 304 flow [2024-06-27 21:54:17,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=304, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2024-06-27 21:54:17,985 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 20 predicate places. [2024-06-27 21:54:17,985 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 304 flow [2024-06-27 21:54:17,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 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 21:54:17,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:17,985 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] [2024-06-27 21:54:17,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 21:54:17,986 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:17,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:17,986 INFO L85 PathProgramCache]: Analyzing trace with hash 913252332, now seen corresponding path program 1 times [2024-06-27 21:54:17,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:17,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934879596] [2024-06-27 21:54:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:17,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:18,061 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 21:54:18,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:18,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934879596] [2024-06-27 21:54:18,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934879596] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:18,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:18,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:54:18,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744638898] [2024-06-27 21:54:18,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:18,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:54:18,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:18,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:54:18,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:54:18,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2024-06-27 21:54:18,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 21:54:18,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:18,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2024-06-27 21:54:18,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:18,385 INFO L124 PetriNetUnfolderBase]: 1600/3283 cut-off events. [2024-06-27 21:54:18,386 INFO L125 PetriNetUnfolderBase]: For 4942/5043 co-relation queries the response was YES. [2024-06-27 21:54:18,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8478 conditions, 3283 events. 1600/3283 cut-off events. For 4942/5043 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 25331 event pairs, 337 based on Foata normal form. 160/3301 useless extension candidates. Maximal degree in co-relation 8450. Up to 1265 conditions per place. [2024-06-27 21:54:18,410 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 30 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-06-27 21:54:18,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 70 transitions, 412 flow [2024-06-27 21:54:18,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:54:18,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:54:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-06-27 21:54:18,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7663043478260869 [2024-06-27 21:54:18,415 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 304 flow. Second operand 4 states and 141 transitions. [2024-06-27 21:54:18,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 70 transitions, 412 flow [2024-06-27 21:54:18,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 392 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-06-27 21:54:18,430 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 322 flow [2024-06-27 21:54:18,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2024-06-27 21:54:18,432 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 18 predicate places. [2024-06-27 21:54:18,433 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 322 flow [2024-06-27 21:54:18,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 21:54:18,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:18,433 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] [2024-06-27 21:54:18,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 21:54:18,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:18,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:18,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1085520050, now seen corresponding path program 1 times [2024-06-27 21:54:18,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:18,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498723979] [2024-06-27 21:54:18,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:18,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:18,570 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 21:54:18,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:18,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498723979] [2024-06-27 21:54:18,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498723979] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:18,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:18,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:54:18,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044045348] [2024-06-27 21:54:18,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:18,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:18,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:18,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:18,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:18,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 46 [2024-06-27 21:54:18,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 21:54:18,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:18,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 46 [2024-06-27 21:54:18,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:19,038 INFO L124 PetriNetUnfolderBase]: 2030/4527 cut-off events. [2024-06-27 21:54:19,039 INFO L125 PetriNetUnfolderBase]: For 8091/8259 co-relation queries the response was YES. [2024-06-27 21:54:19,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13096 conditions, 4527 events. 2030/4527 cut-off events. For 8091/8259 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 40232 event pairs, 792 based on Foata normal form. 117/4230 useless extension candidates. Maximal degree in co-relation 13067. Up to 1279 conditions per place. [2024-06-27 21:54:19,081 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 34 selfloop transitions, 11 changer transitions 7/84 dead transitions. [2024-06-27 21:54:19,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 84 transitions, 530 flow [2024-06-27 21:54:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:54:19,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:54:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-06-27 21:54:19,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6925465838509317 [2024-06-27 21:54:19,083 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 322 flow. Second operand 7 states and 223 transitions. [2024-06-27 21:54:19,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 84 transitions, 530 flow [2024-06-27 21:54:19,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 84 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 21:54:19,096 INFO L231 Difference]: Finished difference. Result has 78 places, 61 transitions, 406 flow [2024-06-27 21:54:19,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=78, PETRI_TRANSITIONS=61} [2024-06-27 21:54:19,097 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 28 predicate places. [2024-06-27 21:54:19,098 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 61 transitions, 406 flow [2024-06-27 21:54:19,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 21:54:19,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:19,098 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] [2024-06-27 21:54:19,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 21:54:19,098 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:19,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:19,099 INFO L85 PathProgramCache]: Analyzing trace with hash -350053576, now seen corresponding path program 1 times [2024-06-27 21:54:19,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:19,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626993242] [2024-06-27 21:54:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:19,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:19,226 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 21:54:19,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:19,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626993242] [2024-06-27 21:54:19,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626993242] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:19,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:19,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:54:19,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899707215] [2024-06-27 21:54:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:19,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:54:19,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:19,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:54:19,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:54:19,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2024-06-27 21:54:19,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 61 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 21:54:19,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:19,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2024-06-27 21:54:19,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:19,641 INFO L124 PetriNetUnfolderBase]: 1995/3952 cut-off events. [2024-06-27 21:54:19,641 INFO L125 PetriNetUnfolderBase]: For 6029/6712 co-relation queries the response was YES. [2024-06-27 21:54:19,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11145 conditions, 3952 events. 1995/3952 cut-off events. For 6029/6712 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 30075 event pairs, 201 based on Foata normal form. 271/4065 useless extension candidates. Maximal degree in co-relation 11111. Up to 1668 conditions per place. [2024-06-27 21:54:19,666 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 38 selfloop transitions, 8 changer transitions 4/85 dead transitions. [2024-06-27 21:54:19,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 85 transitions, 570 flow [2024-06-27 21:54:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 21:54:19,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 21:54:19,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-06-27 21:54:19,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7739130434782608 [2024-06-27 21:54:19,668 INFO L175 Difference]: Start difference. First operand has 78 places, 61 transitions, 406 flow. Second operand 5 states and 178 transitions. [2024-06-27 21:54:19,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 85 transitions, 570 flow [2024-06-27 21:54:19,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 85 transitions, 546 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-06-27 21:54:19,689 INFO L231 Difference]: Finished difference. Result has 83 places, 61 transitions, 392 flow [2024-06-27 21:54:19,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=83, PETRI_TRANSITIONS=61} [2024-06-27 21:54:19,690 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2024-06-27 21:54:19,691 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 61 transitions, 392 flow [2024-06-27 21:54:19,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 21:54:19,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:19,691 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] [2024-06-27 21:54:19,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 21:54:19,692 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:19,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1121140628, now seen corresponding path program 1 times [2024-06-27 21:54:19,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:19,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421537629] [2024-06-27 21:54:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:19,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:19,795 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 21:54:19,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421537629] [2024-06-27 21:54:19,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421537629] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:19,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:19,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 21:54:19,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681238721] [2024-06-27 21:54:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:19,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:54:19,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:54:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:54:19,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 46 [2024-06-27 21:54:19,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 61 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 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 21:54:19,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:19,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 46 [2024-06-27 21:54:19,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:20,470 INFO L124 PetriNetUnfolderBase]: 2498/5390 cut-off events. [2024-06-27 21:54:20,470 INFO L125 PetriNetUnfolderBase]: For 13090/13657 co-relation queries the response was YES. [2024-06-27 21:54:20,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17204 conditions, 5390 events. 2498/5390 cut-off events. For 13090/13657 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 48384 event pairs, 893 based on Foata normal form. 124/4926 useless extension candidates. Maximal degree in co-relation 17167. Up to 1471 conditions per place. [2024-06-27 21:54:20,497 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 40 selfloop transitions, 11 changer transitions 18/94 dead transitions. [2024-06-27 21:54:20,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 94 transitions, 700 flow [2024-06-27 21:54:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 21:54:20,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 21:54:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 191 transitions. [2024-06-27 21:54:20,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6920289855072463 [2024-06-27 21:54:20,499 INFO L175 Difference]: Start difference. First operand has 83 places, 61 transitions, 392 flow. Second operand 6 states and 191 transitions. [2024-06-27 21:54:20,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 94 transitions, 700 flow [2024-06-27 21:54:20,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 94 transitions, 672 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-06-27 21:54:20,578 INFO L231 Difference]: Finished difference. Result has 83 places, 56 transitions, 353 flow [2024-06-27 21:54:20,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=83, PETRI_TRANSITIONS=56} [2024-06-27 21:54:20,578 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2024-06-27 21:54:20,578 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 56 transitions, 353 flow [2024-06-27 21:54:20,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 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 21:54:20,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:20,579 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] [2024-06-27 21:54:20,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 21:54:20,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:20,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:20,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1333547646, now seen corresponding path program 2 times [2024-06-27 21:54:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771474152] [2024-06-27 21:54:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:20,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:20,672 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 21:54:20,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:20,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771474152] [2024-06-27 21:54:20,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771474152] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:20,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:20,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:54:20,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612770838] [2024-06-27 21:54:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:20,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:54:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:54:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:54:20,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2024-06-27 21:54:20,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 56 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 21:54:20,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:20,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2024-06-27 21:54:20,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:21,054 INFO L124 PetriNetUnfolderBase]: 1714/3213 cut-off events. [2024-06-27 21:54:21,055 INFO L125 PetriNetUnfolderBase]: For 4471/6023 co-relation queries the response was YES. [2024-06-27 21:54:21,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9568 conditions, 3213 events. 1714/3213 cut-off events. For 4471/6023 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 23341 event pairs, 91 based on Foata normal form. 265/3295 useless extension candidates. Maximal degree in co-relation 9532. Up to 1384 conditions per place. [2024-06-27 21:54:21,070 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 28 selfloop transitions, 11 changer transitions 17/78 dead transitions. [2024-06-27 21:54:21,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 503 flow [2024-06-27 21:54:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 21:54:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 21:54:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-06-27 21:54:21,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7463768115942029 [2024-06-27 21:54:21,073 INFO L175 Difference]: Start difference. First operand has 83 places, 56 transitions, 353 flow. Second operand 6 states and 206 transitions. [2024-06-27 21:54:21,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 503 flow [2024-06-27 21:54:21,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 453 flow, removed 16 selfloop flow, removed 9 redundant places. [2024-06-27 21:54:21,078 INFO L231 Difference]: Finished difference. Result has 77 places, 46 transitions, 263 flow [2024-06-27 21:54:21,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=263, PETRI_PLACES=77, PETRI_TRANSITIONS=46} [2024-06-27 21:54:21,079 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 27 predicate places. [2024-06-27 21:54:21,080 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 46 transitions, 263 flow [2024-06-27 21:54:21,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 21:54:21,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:54:21,081 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, 1] [2024-06-27 21:54:21,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 21:54:21,082 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:54:21,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:54:21,082 INFO L85 PathProgramCache]: Analyzing trace with hash 615038779, now seen corresponding path program 1 times [2024-06-27 21:54:21,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:54:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902208433] [2024-06-27 21:54:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:54:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:54:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:54:21,235 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 21:54:21,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:54:21,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902208433] [2024-06-27 21:54:21,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902208433] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:54:21,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:54:21,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 21:54:21,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837556883] [2024-06-27 21:54:21,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:54:21,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:54:21,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:54:21,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:54:21,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:54:21,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-06-27 21:54:21,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 46 transitions, 263 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 21:54:21,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:54:21,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-06-27 21:54:21,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:54:21,380 INFO L124 PetriNetUnfolderBase]: 212/466 cut-off events. [2024-06-27 21:54:21,380 INFO L125 PetriNetUnfolderBase]: For 955/965 co-relation queries the response was YES. [2024-06-27 21:54:21,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 466 events. 212/466 cut-off events. For 955/965 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2147 event pairs, 24 based on Foata normal form. 8/456 useless extension candidates. Maximal degree in co-relation 1427. Up to 204 conditions per place. [2024-06-27 21:54:21,383 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-06-27 21:54:21,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 62 transitions, 391 flow [2024-06-27 21:54:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 21:54:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 21:54:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2024-06-27 21:54:21,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5186335403726708 [2024-06-27 21:54:21,385 INFO L175 Difference]: Start difference. First operand has 77 places, 46 transitions, 263 flow. Second operand 7 states and 167 transitions. [2024-06-27 21:54:21,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 62 transitions, 391 flow [2024-06-27 21:54:21,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 270 flow, removed 21 selfloop flow, removed 22 redundant places. [2024-06-27 21:54:21,388 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-06-27 21:54:21,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=53, 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=7, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-06-27 21:54:21,389 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 9 predicate places. [2024-06-27 21:54:21,389 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-06-27 21:54:21,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 21:54:21,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 7 remaining) [2024-06-27 21:54:21,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 7 remaining) [2024-06-27 21:54:21,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 7 remaining) [2024-06-27 21:54:21,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-06-27 21:54:21,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-06-27 21:54:21,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-06-27 21:54:21,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-06-27 21:54:21,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 21:54:21,395 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:54:21,398 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 21:54:21,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 21:54:21,402 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 21:54:21,402 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 21:54:21,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 09:54:21 BasicIcfg [2024-06-27 21:54:21,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 21:54:21,405 INFO L158 Benchmark]: Toolchain (without parser) took 7720.88ms. Allocated memory was 182.5MB in the beginning and 532.7MB in the end (delta: 350.2MB). Free memory was 148.5MB in the beginning and 401.3MB in the end (delta: -252.9MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. [2024-06-27 21:54:21,406 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 182.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:54:21,406 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 182.5MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:54:21,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.50ms. Allocated memory is still 182.5MB. Free memory was 148.5MB in the beginning and 123.0MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 21:54:21,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.50ms. Allocated memory is still 182.5MB. Free memory was 123.0MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 21:54:21,407 INFO L158 Benchmark]: Boogie Preprocessor took 56.88ms. Allocated memory is still 182.5MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 21:54:21,407 INFO L158 Benchmark]: RCFGBuilder took 407.63ms. Allocated memory is still 182.5MB. Free memory was 118.8MB in the beginning and 133.0MB in the end (delta: -14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-27 21:54:21,407 INFO L158 Benchmark]: TraceAbstraction took 6588.66ms. Allocated memory was 182.5MB in the beginning and 532.7MB in the end (delta: 350.2MB). Free memory was 133.0MB in the beginning and 401.3MB in the end (delta: -268.4MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2024-06-27 21:54:21,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.20ms. Allocated memory is still 182.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 182.5MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.50ms. Allocated memory is still 182.5MB. Free memory was 148.5MB in the beginning and 123.0MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.50ms. Allocated memory is still 182.5MB. Free memory was 123.0MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.88ms. Allocated memory is still 182.5MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.63ms. Allocated memory is still 182.5MB. Free memory was 118.8MB in the beginning and 133.0MB in the end (delta: -14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6588.66ms. Allocated memory was 182.5MB in the beginning and 532.7MB in the end (delta: 350.2MB). Free memory was 133.0MB in the beginning and 401.3MB in the end (delta: -268.4MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 781]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 783]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 784]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 18]: 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 7 procedures, 71 locations, 7 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: 6.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 576 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 492 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 218 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1095 IncrementalHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 78 mSDtfsCounter, 1095 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=9, InterpolantAutomatonStates: 74, 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, 1.3s InterpolantComputationTime, 265 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 21:54:21,437 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