./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi000_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/rfi000_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/rfi000_tso.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/rfi000_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 21:49:36,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 21:49:36,684 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 21:49:36,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 21:49:36,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 21:49:36,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 21:49:36,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 21:49:36,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 21:49:36,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 21:49:36,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 21:49:36,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 21:49:36,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 21:49:36,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 21:49:36,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 21:49:36,709 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 21:49:36,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 21:49:36,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 21:49:36,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 21:49:36,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 21:49:36,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 21:49:36,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 21:49:36,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 21:49:36,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 21:49:36,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 21:49:36,713 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 21:49:36,713 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 21:49:36,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 21:49:36,714 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 21:49:36,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 21:49:36,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 21:49:36,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 21:49:36,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 21:49:36,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:49:36,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 21:49:36,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 21:49:36,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 21:49:36,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 21:49:36,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 21:49:36,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 21:49:36,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 21:49:36,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 21:49:36,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 21:49:36,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 21:49:36,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 21:49:36,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 21:49:36,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 21:49:37,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 21:49:37,003 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 21:49:37,004 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 21:49:37,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/rfi000_tso.yml/witness.yml [2024-06-27 21:49:37,092 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 21:49:37,093 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 21:49:37,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2024-06-27 21:49:38,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 21:49:38,616 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 21:49:38,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2024-06-27 21:49:38,651 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33478f864/09e0388666b745edb262de07d3e29624/FLAG4832c7906 [2024-06-27 21:49:38,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33478f864/09e0388666b745edb262de07d3e29624 [2024-06-27 21:49:38,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 21:49:38,672 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 21:49:38,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 21:49:38,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 21:49:38,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 21:49:38,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:49:37" (1/2) ... [2024-06-27 21:49:38,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e27d41 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:49:38, skipping insertion in model container [2024-06-27 21:49:38,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:49:37" (1/2) ... [2024-06-27 21:49:38,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fe8d428 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 09:49:38, skipping insertion in model container [2024-06-27 21:49:38,681 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:49:38" (2/2) ... [2024-06-27 21:49:38,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e27d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:38, skipping insertion in model container [2024-06-27 21:49:38,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 09:49:38" (2/2) ... [2024-06-27 21:49:38,684 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 21:49:38,714 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 21:49:38,715 INFO L97 edCorrectnessWitness]: Location invariant before [L829-L829] ! multithreaded || (((((((0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff0 >= 0LL && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-27 21:49:38,716 INFO L97 edCorrectnessWitness]: Location invariant before [L830-L830] ! multithreaded || (((((((0LL - (long long )y$r_buff0_thd2) + (long long )y$w_buff0 >= 0LL && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff0 >= 0LL) && (0LL - (long long )y$r_buff1_thd2) + (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff0_used >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1 >= 0LL) && (long long )y$w_buff0 - (long long )y$w_buff1_used >= 0LL) && (long long )y$w_buff1 - (long long )y$w_buff1_used >= 0LL) [2024-06-27 21:49:38,716 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 21:49:38,716 INFO L106 edCorrectnessWitness]: ghost_update [L827-L827] multithreaded = 1; [2024-06-27 21:49:38,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 21:49:38,964 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/rfi000_tso.i[944,957] [2024-06-27 21:49:39,195 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:49:39,207 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-06-27 21:49:39,244 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/rfi000_tso.i[944,957] Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 21:49:39,311 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 21:49:39,341 INFO L206 MainTranslator]: Completed translation [2024-06-27 21:49:39,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39 WrapperNode [2024-06-27 21:49:39,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 21:49:39,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 21:49:39,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 21:49:39,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 21:49:39,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,397 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2024-06-27 21:49:39,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 21:49:39,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 21:49:39,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 21:49:39,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 21:49:39,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,430 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 21:49:39,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 21:49:39,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 21:49:39,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 21:49:39,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 21:49:39,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (1/1) ... [2024-06-27 21:49:39,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 21:49:39,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 21:49:39,510 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 21:49:39,534 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 21:49:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 21:49:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 21:49:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 21:49:39,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 21:49:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 21:49:39,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 21:49:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 21:49:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 21:49:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 21:49:39,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 21:49:39,555 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 21:49:39,708 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 21:49:39,710 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 21:49:40,082 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 21:49:40,082 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 21:49:40,309 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 21:49:40,310 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 21:49:40,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:49:40 BoogieIcfgContainer [2024-06-27 21:49:40,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 21:49:40,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 21:49:40,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 21:49:40,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 21:49:40,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 09:49:37" (1/4) ... [2024-06-27 21:49:40,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c73e6d0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 09:49:40, skipping insertion in model container [2024-06-27 21:49:40,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 09:49:38" (2/4) ... [2024-06-27 21:49:40,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c73e6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:49:40, skipping insertion in model container [2024-06-27 21:49:40,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 09:49:39" (3/4) ... [2024-06-27 21:49:40,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c73e6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 09:49:40, skipping insertion in model container [2024-06-27 21:49:40,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 09:49:40" (4/4) ... [2024-06-27 21:49:40,321 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2024-06-27 21:49:40,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 21:49:40,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-27 21:49:40,336 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 21:49:40,379 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 21:49:40,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 37 transitions, 82 flow [2024-06-27 21:49:40,453 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-06-27 21:49:40,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:49:40,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-06-27 21:49:40,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 37 transitions, 82 flow [2024-06-27 21:49:40,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 35 transitions, 76 flow [2024-06-27 21:49:40,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 21:49:40,492 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;@26107d0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 21:49:40,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-06-27 21:49:40,496 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 21:49:40,497 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 21:49:40,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 21:49:40,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:40,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 21:49:40,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:40,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:40,505 INFO L85 PathProgramCache]: Analyzing trace with hash 385587932, now seen corresponding path program 1 times [2024-06-27 21:49:40,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:40,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120236380] [2024-06-27 21:49:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:40,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:41,016 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 21:49:41,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:41,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120236380] [2024-06-27 21:49:41,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120236380] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:41,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:41,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 21:49:41,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984904084] [2024-06-27 21:49:41,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:41,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 21:49:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:41,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 21:49:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 21:49:41,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-06-27 21:49:41,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 21:49:41,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:41,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-06-27 21:49:41,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:41,312 INFO L124 PetriNetUnfolderBase]: 200/401 cut-off events. [2024-06-27 21:49:41,313 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 21:49:41,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 401 events. 200/401 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2059 event pairs, 30 based on Foata normal form. 21/412 useless extension candidates. Maximal degree in co-relation 753. Up to 303 conditions per place. [2024-06-27 21:49:41,319 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 23 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2024-06-27 21:49:41,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 140 flow [2024-06-27 21:49:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 21:49:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 21:49:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-06-27 21:49:41,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6936936936936937 [2024-06-27 21:49:41,335 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 76 flow. Second operand 3 states and 77 transitions. [2024-06-27 21:49:41,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 140 flow [2024-06-27 21:49:41,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 40 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:49:41,341 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 74 flow [2024-06-27 21:49:41,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-06-27 21:49:41,347 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-06-27 21:49:41,347 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 74 flow [2024-06-27 21:49:41,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 21:49:41,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:41,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:41,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 21:49:41,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:41,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1960943492, now seen corresponding path program 1 times [2024-06-27 21:49:41,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:41,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135680491] [2024-06-27 21:49:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:41,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:41,673 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 21:49:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:41,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135680491] [2024-06-27 21:49:41,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135680491] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:41,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:41,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 21:49:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460228698] [2024-06-27 21:49:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:41,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:49:41,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:41,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:49:41,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:49:41,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-06-27 21:49:41,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 21:49:41,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:41,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-06-27 21:49:41,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:41,858 INFO L124 PetriNetUnfolderBase]: 192/398 cut-off events. [2024-06-27 21:49:41,859 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-06-27 21:49:41,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 398 events. 192/398 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2096 event pairs, 26 based on Foata normal form. 3/388 useless extension candidates. Maximal degree in co-relation 788. Up to 263 conditions per place. [2024-06-27 21:49:41,866 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 27 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2024-06-27 21:49:41,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 170 flow [2024-06-27 21:49:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:49:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:49:41,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2024-06-27 21:49:41,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6351351351351351 [2024-06-27 21:49:41,870 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 74 flow. Second operand 4 states and 94 transitions. [2024-06-27 21:49:41,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 170 flow [2024-06-27 21:49:41,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 21:49:41,874 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 105 flow [2024-06-27 21:49:41,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-06-27 21:49:41,875 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-06-27 21:49:41,876 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 105 flow [2024-06-27 21:49:41,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 21:49:41,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:41,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:41,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 21:49:41,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:41,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:41,889 INFO L85 PathProgramCache]: Analyzing trace with hash -315618322, now seen corresponding path program 1 times [2024-06-27 21:49:41,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:41,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947462471] [2024-06-27 21:49:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:41,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:42,694 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 21:49:42,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:42,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947462471] [2024-06-27 21:49:42,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947462471] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:42,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:42,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:49:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824657177] [2024-06-27 21:49:42,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:42,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 21:49:42,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 21:49:42,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-27 21:49:42,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-06-27 21:49:42,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 21:49:42,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:42,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-06-27 21:49:42,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:42,885 INFO L124 PetriNetUnfolderBase]: 172/361 cut-off events. [2024-06-27 21:49:42,885 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-06-27 21:49:42,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 361 events. 172/361 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1836 event pairs, 16 based on Foata normal form. 14/362 useless extension candidates. Maximal degree in co-relation 849. Up to 228 conditions per place. [2024-06-27 21:49:42,890 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 26 selfloop transitions, 7 changer transitions 0/45 dead transitions. [2024-06-27 21:49:42,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 193 flow [2024-06-27 21:49:42,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 21:49:42,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 21:49:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2024-06-27 21:49:42,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315315315315315 [2024-06-27 21:49:42,896 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 105 flow. Second operand 6 states and 118 transitions. [2024-06-27 21:49:42,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 193 flow [2024-06-27 21:49:42,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 21:49:42,899 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 104 flow [2024-06-27 21:49:42,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=104, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-06-27 21:49:42,901 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-06-27 21:49:42,901 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 104 flow [2024-06-27 21:49:42,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 21:49:42,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:42,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:42,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 21:49:42,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:42,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:42,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2129136410, now seen corresponding path program 1 times [2024-06-27 21:49:42,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:42,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031619598] [2024-06-27 21:49:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:42,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:43,070 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 21:49:43,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:43,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031619598] [2024-06-27 21:49:43,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031619598] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:43,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:43,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:49:43,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113755086] [2024-06-27 21:49:43,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:43,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:49:43,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:43,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:49:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:49:43,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-06-27 21:49:43,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 21:49:43,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:43,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-06-27 21:49:43,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:43,304 INFO L124 PetriNetUnfolderBase]: 504/1002 cut-off events. [2024-06-27 21:49:43,305 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2024-06-27 21:49:43,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 1002 events. 504/1002 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5418 event pairs, 65 based on Foata normal form. 43/998 useless extension candidates. Maximal degree in co-relation 2236. Up to 577 conditions per place. [2024-06-27 21:49:43,312 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 41 selfloop transitions, 4 changer transitions 1/54 dead transitions. [2024-06-27 21:49:43,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 254 flow [2024-06-27 21:49:43,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:49:43,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:49:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-06-27 21:49:43,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6081081081081081 [2024-06-27 21:49:43,314 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 104 flow. Second operand 4 states and 90 transitions. [2024-06-27 21:49:43,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 254 flow [2024-06-27 21:49:43,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 240 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 21:49:43,318 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 120 flow [2024-06-27 21:49:43,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-06-27 21:49:43,320 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2024-06-27 21:49:43,320 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 120 flow [2024-06-27 21:49:43,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 21:49:43,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:43,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:43,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 21:49:43,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:43,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1315795481, now seen corresponding path program 1 times [2024-06-27 21:49:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:43,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452585781] [2024-06-27 21:49:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:43,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:43,487 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 21:49:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:43,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452585781] [2024-06-27 21:49:43,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452585781] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:43,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:43,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 21:49:43,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282319866] [2024-06-27 21:49:43,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:43,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 21:49:43,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:43,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 21:49:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 21:49:43,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-06-27 21:49:43,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 21:49:43,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:43,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-06-27 21:49:43,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:43,647 INFO L124 PetriNetUnfolderBase]: 269/586 cut-off events. [2024-06-27 21:49:43,647 INFO L125 PetriNetUnfolderBase]: For 221/226 co-relation queries the response was YES. [2024-06-27 21:49:43,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 586 events. 269/586 cut-off events. For 221/226 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2855 event pairs, 50 based on Foata normal form. 38/591 useless extension candidates. Maximal degree in co-relation 1404. Up to 258 conditions per place. [2024-06-27 21:49:43,651 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 43 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-06-27 21:49:43,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 283 flow [2024-06-27 21:49:43,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 21:49:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 21:49:43,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-06-27 21:49:43,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.668918918918919 [2024-06-27 21:49:43,653 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 120 flow. Second operand 4 states and 99 transitions. [2024-06-27 21:49:43,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 283 flow [2024-06-27 21:49:43,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 274 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 21:49:43,655 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 144 flow [2024-06-27 21:49:43,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2024-06-27 21:49:43,656 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2024-06-27 21:49:43,657 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 144 flow [2024-06-27 21:49:43,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 21:49:43,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:43,657 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 21:49:43,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 21:49:43,658 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:43,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:43,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1844808806, now seen corresponding path program 1 times [2024-06-27 21:49:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:43,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642332626] [2024-06-27 21:49:43,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:43,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:43,800 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 21:49:43,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:43,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642332626] [2024-06-27 21:49:43,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642332626] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:43,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:43,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 21:49:43,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697042403] [2024-06-27 21:49:43,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:43,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:49:43,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:49:43,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:49:43,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-06-27 21:49:43,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 21:49:43,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:43,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-06-27 21:49:43,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:43,951 INFO L124 PetriNetUnfolderBase]: 165/358 cut-off events. [2024-06-27 21:49:43,952 INFO L125 PetriNetUnfolderBase]: For 285/286 co-relation queries the response was YES. [2024-06-27 21:49:43,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 358 events. 165/358 cut-off events. For 285/286 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1504 event pairs, 49 based on Foata normal form. 22/369 useless extension candidates. Maximal degree in co-relation 946. Up to 159 conditions per place. [2024-06-27 21:49:43,955 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 35 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2024-06-27 21:49:43,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 263 flow [2024-06-27 21:49:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 21:49:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 21:49:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-06-27 21:49:43,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-06-27 21:49:43,958 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 144 flow. Second operand 5 states and 110 transitions. [2024-06-27 21:49:43,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 263 flow [2024-06-27 21:49:43,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 53 transitions, 256 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-27 21:49:43,963 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 158 flow [2024-06-27 21:49:43,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-06-27 21:49:43,966 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2024-06-27 21:49:43,967 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 158 flow [2024-06-27 21:49:43,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 21:49:43,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:43,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:43,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 21:49:43,968 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:43,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:43,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2122935268, now seen corresponding path program 1 times [2024-06-27 21:49:43,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:43,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930093836] [2024-06-27 21:49:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 21:49:46,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:46,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930093836] [2024-06-27 21:49:46,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930093836] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:46,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:46,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-06-27 21:49:46,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091159258] [2024-06-27 21:49:46,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:46,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-27 21:49:46,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:46,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-27 21:49:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-06-27 21:49:46,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-06-27 21:49:46,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 158 flow. Second operand has 12 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 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 21:49:46,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:46,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-06-27 21:49:46,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:46,636 INFO L124 PetriNetUnfolderBase]: 158/413 cut-off events. [2024-06-27 21:49:46,637 INFO L125 PetriNetUnfolderBase]: For 378/414 co-relation queries the response was YES. [2024-06-27 21:49:46,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 413 events. 158/413 cut-off events. For 378/414 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2057 event pairs, 41 based on Foata normal form. 10/398 useless extension candidates. Maximal degree in co-relation 1057. Up to 151 conditions per place. [2024-06-27 21:49:46,640 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 28 selfloop transitions, 15 changer transitions 14/74 dead transitions. [2024-06-27 21:49:46,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 375 flow [2024-06-27 21:49:46,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-27 21:49:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-27 21:49:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 223 transitions. [2024-06-27 21:49:46,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.547911547911548 [2024-06-27 21:49:46,642 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 158 flow. Second operand 11 states and 223 transitions. [2024-06-27 21:49:46,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 375 flow [2024-06-27 21:49:46,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 366 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-27 21:49:46,645 INFO L231 Difference]: Finished difference. Result has 64 places, 49 transitions, 243 flow [2024-06-27 21:49:46,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=243, PETRI_PLACES=64, PETRI_TRANSITIONS=49} [2024-06-27 21:49:46,646 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 23 predicate places. [2024-06-27 21:49:46,646 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 49 transitions, 243 flow [2024-06-27 21:49:46,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 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 21:49:46,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:46,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:46,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 21:49:46,647 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:46,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:46,648 INFO L85 PathProgramCache]: Analyzing trace with hash 18273234, now seen corresponding path program 2 times [2024-06-27 21:49:46,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:46,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054933344] [2024-06-27 21:49:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:46,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:48,616 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 21:49:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:48,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054933344] [2024-06-27 21:49:48,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054933344] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:48,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:48,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-06-27 21:49:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999675681] [2024-06-27 21:49:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:48,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-27 21:49:48,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-27 21:49:48,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-06-27 21:49:48,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-06-27 21:49:48,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 49 transitions, 243 flow. Second operand has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 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 21:49:48,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:48,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-06-27 21:49:48,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:49,533 INFO L124 PetriNetUnfolderBase]: 260/645 cut-off events. [2024-06-27 21:49:49,533 INFO L125 PetriNetUnfolderBase]: For 567/586 co-relation queries the response was YES. [2024-06-27 21:49:49,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 645 events. 260/645 cut-off events. For 567/586 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3670 event pairs, 47 based on Foata normal form. 14/621 useless extension candidates. Maximal degree in co-relation 1805. Up to 175 conditions per place. [2024-06-27 21:49:49,538 INFO L140 encePairwiseOnDemand]: 25/37 looper letters, 34 selfloop transitions, 18 changer transitions 29/96 dead transitions. [2024-06-27 21:49:49,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 96 transitions, 560 flow [2024-06-27 21:49:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-06-27 21:49:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-06-27 21:49:49,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 269 transitions. [2024-06-27 21:49:49,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4846846846846847 [2024-06-27 21:49:49,540 INFO L175 Difference]: Start difference. First operand has 64 places, 49 transitions, 243 flow. Second operand 15 states and 269 transitions. [2024-06-27 21:49:49,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 96 transitions, 560 flow [2024-06-27 21:49:49,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 96 transitions, 537 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-27 21:49:49,545 INFO L231 Difference]: Finished difference. Result has 80 places, 51 transitions, 298 flow [2024-06-27 21:49:49,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=298, PETRI_PLACES=80, PETRI_TRANSITIONS=51} [2024-06-27 21:49:49,546 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2024-06-27 21:49:49,546 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 51 transitions, 298 flow [2024-06-27 21:49:49,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.357142857142858) internal successors, (201), 14 states have internal predecessors, (201), 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 21:49:49,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:49,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:49,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 21:49:49,547 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:49,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:49,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1793187458, now seen corresponding path program 3 times [2024-06-27 21:49:49,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:49,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941606514] [2024-06-27 21:49:49,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:49,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:51,013 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 21:49:51,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:51,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941606514] [2024-06-27 21:49:51,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941606514] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:51,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:51,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-06-27 21:49:51,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320741922] [2024-06-27 21:49:51,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:51,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-27 21:49:51,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:51,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-27 21:49:51,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-06-27 21:49:51,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-06-27 21:49:51,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 51 transitions, 298 flow. Second operand has 12 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 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 21:49:51,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:51,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-06-27 21:49:51,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:51,506 INFO L124 PetriNetUnfolderBase]: 201/546 cut-off events. [2024-06-27 21:49:51,507 INFO L125 PetriNetUnfolderBase]: For 733/760 co-relation queries the response was YES. [2024-06-27 21:49:51,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 546 events. 201/546 cut-off events. For 733/760 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3289 event pairs, 77 based on Foata normal form. 11/497 useless extension candidates. Maximal degree in co-relation 1677. Up to 238 conditions per place. [2024-06-27 21:49:51,510 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 22 selfloop transitions, 9 changer transitions 25/72 dead transitions. [2024-06-27 21:49:51,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 72 transitions, 478 flow [2024-06-27 21:49:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 21:49:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 21:49:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 183 transitions. [2024-06-27 21:49:51,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5495495495495496 [2024-06-27 21:49:51,513 INFO L175 Difference]: Start difference. First operand has 80 places, 51 transitions, 298 flow. Second operand 9 states and 183 transitions. [2024-06-27 21:49:51,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 72 transitions, 478 flow [2024-06-27 21:49:51,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 72 transitions, 436 flow, removed 11 selfloop flow, removed 11 redundant places. [2024-06-27 21:49:51,517 INFO L231 Difference]: Finished difference. Result has 77 places, 43 transitions, 250 flow [2024-06-27 21:49:51,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=250, PETRI_PLACES=77, PETRI_TRANSITIONS=43} [2024-06-27 21:49:51,519 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 36 predicate places. [2024-06-27 21:49:51,519 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 43 transitions, 250 flow [2024-06-27 21:49:51,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 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 21:49:51,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 21:49:51,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:51,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 21:49:51,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-06-27 21:49:51,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 21:49:51,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1755031590, now seen corresponding path program 4 times [2024-06-27 21:49:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 21:49:51,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184319241] [2024-06-27 21:49:51,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 21:49:51,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 21:49:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 21:49:51,719 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 21:49:51,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 21:49:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184319241] [2024-06-27 21:49:51,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184319241] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 21:49:51,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 21:49:51,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 21:49:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542996528] [2024-06-27 21:49:51,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 21:49:51,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 21:49:51,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 21:49:51,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 21:49:51,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 21:49:51,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-06-27 21:49:51,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 43 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 21:49:51,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 21:49:51,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-06-27 21:49:51,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 21:49:51,825 INFO L124 PetriNetUnfolderBase]: 76/214 cut-off events. [2024-06-27 21:49:51,825 INFO L125 PetriNetUnfolderBase]: For 238/240 co-relation queries the response was YES. [2024-06-27 21:49:51,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 214 events. 76/214 cut-off events. For 238/240 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 839 event pairs, 15 based on Foata normal form. 5/206 useless extension candidates. Maximal degree in co-relation 665. Up to 103 conditions per place. [2024-06-27 21:49:51,827 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-06-27 21:49:51,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 50 transitions, 336 flow [2024-06-27 21:49:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 21:49:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 21:49:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-06-27 21:49:51,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5351351351351351 [2024-06-27 21:49:51,829 INFO L175 Difference]: Start difference. First operand has 77 places, 43 transitions, 250 flow. Second operand 5 states and 99 transitions. [2024-06-27 21:49:51,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 50 transitions, 336 flow [2024-06-27 21:49:51,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 272 flow, removed 13 selfloop flow, removed 12 redundant places. [2024-06-27 21:49:51,831 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-06-27 21:49:51,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-06-27 21:49:51,833 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 18 predicate places. [2024-06-27 21:49:51,833 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-06-27 21:49:51,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 21:49:51,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-06-27 21:49:51,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 7 remaining) [2024-06-27 21:49:51,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 7 remaining) [2024-06-27 21:49:51,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2024-06-27 21:49:51,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-06-27 21:49:51,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-06-27 21:49:51,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-06-27 21:49:51,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 21:49:51,838 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2024-06-27 21:49:51,843 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 21:49:51,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 21:49:51,849 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 21:49:51,849 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 21:49:51,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 09:49:51 BasicIcfg [2024-06-27 21:49:51,852 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 21:49:51,852 INFO L158 Benchmark]: Toolchain (without parser) took 13180.95ms. Allocated memory was 109.1MB in the beginning and 446.7MB in the end (delta: 337.6MB). Free memory was 55.1MB in the beginning and 285.2MB in the end (delta: -230.1MB). Peak memory consumption was 108.0MB. Max. memory is 16.1GB. [2024-06-27 21:49:51,853 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 86.0MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:49:51,853 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 21:49:51,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 669.60ms. Allocated memory is still 109.1MB. Free memory was 54.8MB in the beginning and 53.4MB in the end (delta: 1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-27 21:49:51,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.19ms. Allocated memory is still 109.1MB. Free memory was 53.4MB in the beginning and 49.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 21:49:51,854 INFO L158 Benchmark]: Boogie Preprocessor took 50.07ms. Allocated memory is still 109.1MB. Free memory was 49.8MB in the beginning and 45.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 21:49:51,856 INFO L158 Benchmark]: RCFGBuilder took 861.38ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 45.7MB in the beginning and 54.2MB in the end (delta: -8.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-06-27 21:49:51,856 INFO L158 Benchmark]: TraceAbstraction took 11538.73ms. Allocated memory was 134.2MB in the beginning and 446.7MB in the end (delta: 312.5MB). Free memory was 53.1MB in the beginning and 285.2MB in the end (delta: -232.1MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2024-06-27 21:49:51,857 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 0.21ms. Allocated memory is still 86.0MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 669.60ms. Allocated memory is still 109.1MB. Free memory was 54.8MB in the beginning and 53.4MB in the end (delta: 1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.19ms. Allocated memory is still 109.1MB. Free memory was 53.4MB in the beginning and 49.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.07ms. Allocated memory is still 109.1MB. Free memory was 49.8MB in the beginning and 45.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 861.38ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 45.7MB in the beginning and 54.2MB in the end (delta: -8.5MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11538.73ms. Allocated memory was 134.2MB in the beginning and 446.7MB in the end (delta: 312.5MB). Free memory was 53.1MB in the beginning and 285.2MB in the end (delta: -232.1MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 829]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 830]: 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 5 procedures, 56 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: 11.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 519 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 311 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1766 IncrementalHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 29 mSDtfsCounter, 1766 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=8, InterpolantAutomatonStates: 66, 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, 0.4s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 2204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 21:49:51,885 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