./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe023_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 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/safe023_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe023_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-?-80b1b13-m [2024-01-31 16:44:11,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:44:11,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:44:11,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:44:11,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:44:11,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:44:11,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:44:11,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:44:11,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:44:11,689 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:44:11,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:44:11,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:44:11,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:44:11,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:44:11,692 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:44:11,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:44:11,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:44:11,692 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:44:11,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:44:11,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:44:11,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:44:11,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:44:11,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:44:11,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:44:11,694 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:44:11,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:44:11,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:44:11,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:44:11,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:44:11,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:44:11,696 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:44:11,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:44:11,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:11,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:44:11,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:44:11,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:44:11,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:44:11,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:44:11,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:44:11,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:44:11,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:44:11,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:44:11,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:44:11,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:44:11,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:44:11,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:44:11,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:44:11,947 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:44:11,948 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:44:11,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe023_tso.yml/witness.yml [2024-01-31 16:44:12,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:44:12,174 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:44:12,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2024-01-31 16:44:13,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:44:13,574 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:44:13,575 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2024-01-31 16:44:13,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa92d32b2/d292525f45c94d70889b5a2095fe0dbc/FLAGf6434902b [2024-01-31 16:44:13,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa92d32b2/d292525f45c94d70889b5a2095fe0dbc [2024-01-31 16:44:13,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:44:13,642 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:44:13,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:13,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:44:13,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:44:13,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:12" (1/2) ... [2024-01-31 16:44:13,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d33f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:13, skipping insertion in model container [2024-01-31 16:44:13,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:12" (1/2) ... [2024-01-31 16:44:13,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56d829e6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:13, skipping insertion in model container [2024-01-31 16:44:13,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:13" (2/2) ... [2024-01-31 16:44:13,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d33f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:13, skipping insertion in model container [2024-01-31 16:44:13,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:13" (2/2) ... [2024-01-31 16:44:13,658 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:44:14,085 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:44:14,087 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:44:14,087 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:44:14,136 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:44:14,276 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2024-01-31 16:44:14,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:14,387 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:44:14,401 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] Start Parsing Local [2024-01-31 16:44:14,424 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-01-31 16:44:14,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:14,479 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:44:14,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14 WrapperNode [2024-01-31 16:44:14,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:14,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:14,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:44:14,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:44:14,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,509 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-01-31 16:44:14,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:14,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:44:14,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:44:14,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:44:14,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,520 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,543 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-31 16:44:14,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:44:14,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:44:14,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:44:14,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:44:14,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (1/1) ... [2024-01-31 16:44:14,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:14,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:44:14,649 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) [2024-01-31 16:44:14,688 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 [2024-01-31 16:44:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:44:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:44:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:44:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:44:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:44:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:44:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-31 16:44:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-31 16:44:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:44:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:44:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:44:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:44:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:44:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:44:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:44:14,713 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:44:14,814 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:44:14,816 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:44:14,937 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:44:14,938 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:44:15,041 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:44:15,041 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:44:15,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:15 BoogieIcfgContainer [2024-01-31 16:44:15,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:44:15,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:44:15,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:44:15,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:44:15,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:12" (1/4) ... [2024-01-31 16:44:15,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733ee5f8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:44:15, skipping insertion in model container [2024-01-31 16:44:15,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:13" (2/4) ... [2024-01-31 16:44:15,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733ee5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:15, skipping insertion in model container [2024-01-31 16:44:15,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:14" (3/4) ... [2024-01-31 16:44:15,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733ee5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:15, skipping insertion in model container [2024-01-31 16:44:15,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:15" (4/4) ... [2024-01-31 16:44:15,048 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2024-01-31 16:44:15,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:44:15,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-31 16:44:15,062 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:44:15,098 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:44:15,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 94 flow [2024-01-31 16:44:15,159 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2024-01-31 16:44:15,160 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:15,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2024-01-31 16:44:15,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 41 transitions, 94 flow [2024-01-31 16:44:15,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2024-01-31 16:44:15,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:44:15,183 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;@59e9d150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:44:15,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-01-31 16:44:15,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:44:15,194 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-01-31 16:44:15,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:15,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:15,196 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:15,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:15,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash 263104268, now seen corresponding path program 1 times [2024-01-31 16:44:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:15,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341994007] [2024-01-31 16:44:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:15,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341994007] [2024-01-31 16:44:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341994007] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:15,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:44:15,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261446372] [2024-01-31 16:44:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:15,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:44:15,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:44:15,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:44:15,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:15,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-01-31 16:44:15,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:15,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:15,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:15,567 INFO L124 PetriNetUnfolderBase]: 75/204 cut-off events. [2024-01-31 16:44:15,568 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:15,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 204 events. 75/204 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1102 event pairs, 51 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 348. Up to 97 conditions per place. [2024-01-31 16:44:15,571 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 16 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2024-01-31 16:44:15,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 117 flow [2024-01-31 16:44:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:44:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:44:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-01-31 16:44:15,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2024-01-31 16:44:15,608 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 87 transitions. [2024-01-31 16:44:15,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 117 flow [2024-01-31 16:44:15,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:44:15,613 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 76 flow [2024-01-31 16:44:15,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2024-01-31 16:44:15,617 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-01-31 16:44:15,617 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 76 flow [2024-01-31 16:44:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-01-31 16:44:15,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:15,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:15,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:44:15,618 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:15,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:15,619 INFO L85 PathProgramCache]: Analyzing trace with hash -433702081, now seen corresponding path program 1 times [2024-01-31 16:44:15,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:15,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787978148] [2024-01-31 16:44:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:15,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:15,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787978148] [2024-01-31 16:44:15,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787978148] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:15,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:15,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:44:15,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669754945] [2024-01-31 16:44:15,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:15,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:44:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:15,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:44:15,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:44:15,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:15,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-01-31 16:44:15,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:15,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:15,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:15,981 INFO L124 PetriNetUnfolderBase]: 291/618 cut-off events. [2024-01-31 16:44:15,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:15,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 618 events. 291/618 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3450 event pairs, 58 based on Foata normal form. 27/635 useless extension candidates. Maximal degree in co-relation 1139. Up to 236 conditions per place. [2024-01-31 16:44:15,986 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 25 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2024-01-31 16:44:15,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 172 flow [2024-01-31 16:44:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:44:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:44:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-01-31 16:44:15,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7621951219512195 [2024-01-31 16:44:15,988 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 76 flow. Second operand 4 states and 125 transitions. [2024-01-31 16:44:15,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 172 flow [2024-01-31 16:44:15,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:44:15,991 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 109 flow [2024-01-31 16:44:15,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2024-01-31 16:44:15,991 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2024-01-31 16:44:15,992 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 109 flow [2024-01-31 16:44:15,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-01-31 16:44:15,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:15,992 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] [2024-01-31 16:44:15,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:44:15,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:15,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:15,993 INFO L85 PathProgramCache]: Analyzing trace with hash -166616940, now seen corresponding path program 1 times [2024-01-31 16:44:15,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:15,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586537767] [2024-01-31 16:44:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:16,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:16,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586537767] [2024-01-31 16:44:16,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586537767] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:16,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:16,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:44:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189482852] [2024-01-31 16:44:16,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:16,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:44:16,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:44:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:44:16,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:16,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-01-31 16:44:16,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:16,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:16,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:16,300 INFO L124 PetriNetUnfolderBase]: 249/527 cut-off events. [2024-01-31 16:44:16,300 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-01-31 16:44:16,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 527 events. 249/527 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2644 event pairs, 15 based on Foata normal form. 26/545 useless extension candidates. Maximal degree in co-relation 1213. Up to 188 conditions per place. [2024-01-31 16:44:16,307 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 31 selfloop transitions, 8 changer transitions 1/58 dead transitions. [2024-01-31 16:44:16,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 252 flow [2024-01-31 16:44:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:44:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:44:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2024-01-31 16:44:16,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7658536585365854 [2024-01-31 16:44:16,313 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 109 flow. Second operand 5 states and 157 transitions. [2024-01-31 16:44:16,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 252 flow [2024-01-31 16:44:16,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 242 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-31 16:44:16,317 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 149 flow [2024-01-31 16:44:16,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=101, 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=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-01-31 16:44:16,319 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 6 predicate places. [2024-01-31 16:44:16,319 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 149 flow [2024-01-31 16:44:16,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-01-31 16:44:16,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:16,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:16,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:44:16,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:16,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:16,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2123054875, now seen corresponding path program 1 times [2024-01-31 16:44:16,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:16,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209923630] [2024-01-31 16:44:16,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:16,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:16,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:16,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209923630] [2024-01-31 16:44:16,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209923630] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:16,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:16,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:16,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048915771] [2024-01-31 16:44:16,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:16,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:16,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:16,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:16,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:16,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:16,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-01-31 16:44:16,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:16,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:16,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:16,606 INFO L124 PetriNetUnfolderBase]: 174/350 cut-off events. [2024-01-31 16:44:16,607 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-01-31 16:44:16,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 350 events. 174/350 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1310 event pairs, 6 based on Foata normal form. 20/362 useless extension candidates. Maximal degree in co-relation 943. Up to 108 conditions per place. [2024-01-31 16:44:16,609 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 29 selfloop transitions, 11 changer transitions 1/59 dead transitions. [2024-01-31 16:44:16,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 59 transitions, 279 flow [2024-01-31 16:44:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-01-31 16:44:16,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7357723577235772 [2024-01-31 16:44:16,611 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 149 flow. Second operand 6 states and 181 transitions. [2024-01-31 16:44:16,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 59 transitions, 279 flow [2024-01-31 16:44:16,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 254 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-01-31 16:44:16,617 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 163 flow [2024-01-31 16:44:16,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2024-01-31 16:44:16,618 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2024-01-31 16:44:16,619 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 163 flow [2024-01-31 16:44:16,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-01-31 16:44:16,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:16,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:16,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:44:16,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:16,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:16,621 INFO L85 PathProgramCache]: Analyzing trace with hash 623705946, now seen corresponding path program 1 times [2024-01-31 16:44:16,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:16,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174636334] [2024-01-31 16:44:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:16,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:16,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174636334] [2024-01-31 16:44:16,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174636334] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:16,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:16,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:16,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938709734] [2024-01-31 16:44:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:16,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:16,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:16,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:16,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:16,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 41 [2024-01-31 16:44:16,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-01-31 16:44:16,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:16,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 41 [2024-01-31 16:44:16,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:17,028 INFO L124 PetriNetUnfolderBase]: 502/1070 cut-off events. [2024-01-31 16:44:17,028 INFO L125 PetriNetUnfolderBase]: For 627/641 co-relation queries the response was YES. [2024-01-31 16:44:17,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 1070 events. 502/1070 cut-off events. For 627/641 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6213 event pairs, 248 based on Foata normal form. 16/985 useless extension candidates. Maximal degree in co-relation 2499. Up to 276 conditions per place. [2024-01-31 16:44:17,035 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 28 selfloop transitions, 2 changer transitions 28/80 dead transitions. [2024-01-31 16:44:17,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 80 transitions, 386 flow [2024-01-31 16:44:17,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-31 16:44:17,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-31 16:44:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 249 transitions. [2024-01-31 16:44:17,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6747967479674797 [2024-01-31 16:44:17,042 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 163 flow. Second operand 9 states and 249 transitions. [2024-01-31 16:44:17,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 80 transitions, 386 flow [2024-01-31 16:44:17,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 306 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-01-31 16:44:17,048 INFO L231 Difference]: Finished difference. Result has 61 places, 41 transitions, 133 flow [2024-01-31 16:44:17,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=133, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2024-01-31 16:44:17,050 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 16 predicate places. [2024-01-31 16:44:17,050 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 41 transitions, 133 flow [2024-01-31 16:44:17,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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) [2024-01-31 16:44:17,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:17,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:17,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:44:17,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:17,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2107302774, now seen corresponding path program 2 times [2024-01-31 16:44:17,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:17,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698579733] [2024-01-31 16:44:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:17,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:17,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698579733] [2024-01-31 16:44:17,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698579733] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:17,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:17,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-31 16:44:17,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620597900] [2024-01-31 16:44:17,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:17,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:44:17,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:17,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:44:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:44:17,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 41 [2024-01-31 16:44:17,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 41 transitions, 133 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2024-01-31 16:44:17,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:17,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 41 [2024-01-31 16:44:17,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:17,479 INFO L124 PetriNetUnfolderBase]: 774/1626 cut-off events. [2024-01-31 16:44:17,480 INFO L125 PetriNetUnfolderBase]: For 406/406 co-relation queries the response was YES. [2024-01-31 16:44:17,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3455 conditions, 1626 events. 774/1626 cut-off events. For 406/406 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10657 event pairs, 187 based on Foata normal form. 32/1537 useless extension candidates. Maximal degree in co-relation 3438. Up to 336 conditions per place. [2024-01-31 16:44:17,486 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 20 selfloop transitions, 5 changer transitions 64/109 dead transitions. [2024-01-31 16:44:17,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 109 transitions, 500 flow [2024-01-31 16:44:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-31 16:44:17,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-01-31 16:44:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 358 transitions. [2024-01-31 16:44:17,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6236933797909407 [2024-01-31 16:44:17,488 INFO L175 Difference]: Start difference. First operand has 61 places, 41 transitions, 133 flow. Second operand 14 states and 358 transitions. [2024-01-31 16:44:17,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 109 transitions, 500 flow [2024-01-31 16:44:17,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 109 transitions, 447 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-01-31 16:44:17,491 INFO L231 Difference]: Finished difference. Result has 74 places, 40 transitions, 159 flow [2024-01-31 16:44:17,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=159, PETRI_PLACES=74, PETRI_TRANSITIONS=40} [2024-01-31 16:44:17,492 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2024-01-31 16:44:17,492 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 40 transitions, 159 flow [2024-01-31 16:44:17,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2024-01-31 16:44:17,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:17,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:17,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:44:17,493 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:17,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:17,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1587110948, now seen corresponding path program 3 times [2024-01-31 16:44:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931777614] [2024-01-31 16:44:17,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:17,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:44:17,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931777614] [2024-01-31 16:44:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931777614] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:17,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:17,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315128770] [2024-01-31 16:44:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:17,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 16:44:17,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:17,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 16:44:17,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-31 16:44:17,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 41 [2024-01-31 16:44:17,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 40 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 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) [2024-01-31 16:44:17,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:17,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 41 [2024-01-31 16:44:17,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:17,725 INFO L124 PetriNetUnfolderBase]: 197/455 cut-off events. [2024-01-31 16:44:17,725 INFO L125 PetriNetUnfolderBase]: For 372/372 co-relation queries the response was YES. [2024-01-31 16:44:17,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 455 events. 197/455 cut-off events. For 372/372 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2270 event pairs, 71 based on Foata normal form. 8/431 useless extension candidates. Maximal degree in co-relation 1085. Up to 156 conditions per place. [2024-01-31 16:44:17,727 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-01-31 16:44:17,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 48 transitions, 228 flow [2024-01-31 16:44:17,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:17,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-01-31 16:44:17,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5650406504065041 [2024-01-31 16:44:17,728 INFO L175 Difference]: Start difference. First operand has 74 places, 40 transitions, 159 flow. Second operand 6 states and 139 transitions. [2024-01-31 16:44:17,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 48 transitions, 228 flow [2024-01-31 16:44:17,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 48 transitions, 197 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-01-31 16:44:17,730 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-01-31 16:44:17,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-01-31 16:44:17,730 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 10 predicate places. [2024-01-31 16:44:17,730 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-01-31 16:44:17,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 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) [2024-01-31 16:44:17,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-01-31 16:44:17,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-01-31 16:44:17,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-01-31 16:44:17,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-01-31 16:44:17,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-01-31 16:44:17,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:44:17,734 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-01-31 16:44:17,736 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:44:17,736 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:44:17,739 INFO L503 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-01-31 16:44:17,739 INFO L504 ceAbstractionStarter]: WitnessConsidered=1 [2024-01-31 16:44:17,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:17 BasicIcfg [2024-01-31 16:44:17,740 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:44:17,741 INFO L158 Benchmark]: Toolchain (without parser) took 4099.03ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 116.8MB in the beginning and 189.3MB in the end (delta: -72.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-01-31 16:44:17,741 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 176.2MB. Free memory was 142.3MB in the beginning and 142.1MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:17,741 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:17,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 830.39ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 118.3MB in the end (delta: -1.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-01-31 16:44:17,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.04ms. Allocated memory is still 176.2MB. Free memory was 118.3MB in the beginning and 116.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:44:17,742 INFO L158 Benchmark]: Boogie Preprocessor took 59.64ms. Allocated memory is still 176.2MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:44:17,742 INFO L158 Benchmark]: RCFGBuilder took 471.88ms. Allocated memory is still 176.2MB. Free memory was 113.0MB in the beginning and 92.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-31 16:44:17,743 INFO L158 Benchmark]: TraceAbstraction took 2696.73ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 91.0MB in the beginning and 189.3MB in the end (delta: -98.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:17,744 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 0.17ms. Allocated memory is still 176.2MB. Free memory was 142.3MB in the beginning and 142.1MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 830.39ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 118.3MB in the end (delta: -1.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.04ms. Allocated memory is still 176.2MB. Free memory was 118.3MB in the beginning and 116.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.64ms. Allocated memory is still 176.2MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.88ms. Allocated memory is still 176.2MB. Free memory was 113.0MB in the beginning and 92.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2696.73ms. Allocated memory was 176.2MB in the beginning and 262.1MB in the end (delta: 86.0MB). Free memory was 91.0MB in the beginning and 189.3MB in the end (delta: -98.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 674 IncrementalHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 32 mSDtfsCounter, 674 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:44:17,779 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