./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe031_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/safe031_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe031_tso.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-?-80b1b13-m [2024-01-31 16:44:20,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:44:20,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:44:20,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:44:20,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:44:20,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:44:20,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:44:20,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:44:20,538 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:44:20,541 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:44:20,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:44:20,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:44:20,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:44:20,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:44:20,544 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:44:20,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:44:20,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:44:20,545 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:44:20,545 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:44:20,545 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:44:20,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:44:20,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:44:20,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:44:20,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:44:20,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:44:20,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:44:20,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:44:20,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:44:20,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:44:20,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:44:20,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:44:20,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:44:20,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:20,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:44:20,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:44:20,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:44:20,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:44:20,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:44:20,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:44:20,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:44:20,551 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:44:20,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:44:20,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:44:20,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:44:20,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:44:20,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:44:20,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:44:20,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:44:20,768 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:44:20,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-01-31 16:44:21,843 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:44:22,092 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:44:22,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2024-01-31 16:44:22,104 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9552a5786/16c7d3cf56264448b8c0eadc577f63a8/FLAGfaa0ed1c0 [2024-01-31 16:44:22,114 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9552a5786/16c7d3cf56264448b8c0eadc577f63a8 [2024-01-31 16:44:22,116 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:44:22,116 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:44:22,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe031_tso.yml/witness.yml [2024-01-31 16:44:22,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:44:22,322 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:44:22,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:22,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:44:22,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:44:22,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:22" (1/2) ... [2024-01-31 16:44:22,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bb78da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:22, skipping insertion in model container [2024-01-31 16:44:22,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:22" (1/2) ... [2024-01-31 16:44:22,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@436c4299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:22, skipping insertion in model container [2024-01-31 16:44:22,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:22" (2/2) ... [2024-01-31 16:44:22,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bb78da and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:22, skipping insertion in model container [2024-01-31 16:44:22,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:22" (2/2) ... [2024-01-31 16:44:22,332 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:44:22,697 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:44:22,698 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:44:22,698 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:44:22,738 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:44:22,886 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/safe031_tso.i[945,958] [2024-01-31 16:44:22,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:22,993 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:44:23,009 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/safe031_tso.i[945,958] Start Parsing Local [2024-01-31 16:44:23,028 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-01-31 16:44:23,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:23,100 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:44:23,100 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23 WrapperNode [2024-01-31 16:44:23,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:23,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:23,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:44:23,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:44:23,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,152 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-01-31 16:44:23,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:23,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:44:23,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:44:23,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:44:23,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,204 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 16:44:23,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:44:23,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:44:23,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:44:23,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:44:23,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (1/1) ... [2024-01-31 16:44:23,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:23,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:44:23,273 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 16:44:23,291 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 16:44:23,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:44:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:44:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:44:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:44:23,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:44:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:44:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:44:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:44:23,306 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:44:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:44:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:44:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:44:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-31 16:44:23,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-31 16:44:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:44:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:44:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:44:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:44:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:44:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:44:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:44:23,311 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 16:44:23,445 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:44:23,447 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:44:23,604 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:44:23,604 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:44:23,664 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:44:23,664 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:44:23,665 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:23 BoogieIcfgContainer [2024-01-31 16:44:23,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:44:23,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:44:23,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:44:23,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:44:23,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:22" (1/4) ... [2024-01-31 16:44:23,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a510c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:23, skipping insertion in model container [2024-01-31 16:44:23,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:22" (2/4) ... [2024-01-31 16:44:23,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a510c46 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:44:23, skipping insertion in model container [2024-01-31 16:44:23,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:23" (3/4) ... [2024-01-31 16:44:23,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a510c46 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:44:23, skipping insertion in model container [2024-01-31 16:44:23,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:23" (4/4) ... [2024-01-31 16:44:23,673 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2024-01-31 16:44:23,686 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:44:23,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-31 16:44:23,686 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:44:23,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:44:23,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 94 flow [2024-01-31 16:44:23,792 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2024-01-31 16:44:23,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:23,796 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 67 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 16:44:23,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 41 transitions, 94 flow [2024-01-31 16:44:23,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2024-01-31 16:44:23,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:44:23,825 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;@71ed90fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:44:23,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-01-31 16:44:23,837 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:44:23,838 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-01-31 16:44:23,838 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:23,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:23,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:23,840 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 16:44:23,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:23,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1652316757, now seen corresponding path program 1 times [2024-01-31 16:44:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:23,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416782768] [2024-01-31 16:44:23,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:23,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:24,090 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 16:44:24,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:24,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416782768] [2024-01-31 16:44:24,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416782768] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:24,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:24,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:44:24,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763578566] [2024-01-31 16:44:24,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:24,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:44:24,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:24,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:44:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:44:24,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:24,139 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 16:44:24,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:24,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:24,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:24,222 INFO L124 PetriNetUnfolderBase]: 75/204 cut-off events. [2024-01-31 16:44:24,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:24,224 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 1087 event pairs, 51 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 348. Up to 97 conditions per place. [2024-01-31 16:44:24,227 INFO L140 encePairwiseOnDemand]: 39/41 looper letters, 16 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2024-01-31 16:44:24,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 117 flow [2024-01-31 16:44:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:44:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:44:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-01-31 16:44:24,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2024-01-31 16:44:24,237 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 87 transitions. [2024-01-31 16:44:24,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 117 flow [2024-01-31 16:44:24,239 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 16:44:24,242 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 76 flow [2024-01-31 16:44:24,243 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 16:44:24,246 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-01-31 16:44:24,246 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 76 flow [2024-01-31 16:44:24,247 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 16:44:24,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:24,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:24,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:44:24,248 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 16:44:24,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:24,248 INFO L85 PathProgramCache]: Analyzing trace with hash 317788287, now seen corresponding path program 1 times [2024-01-31 16:44:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:24,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645926812] [2024-01-31 16:44:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:24,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:24,518 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 16:44:24,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:24,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645926812] [2024-01-31 16:44:24,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645926812] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:24,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:24,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:44:24,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547264953] [2024-01-31 16:44:24,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:24,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:44:24,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:44:24,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:44:24,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2024-01-31 16:44:24,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 16:44:24,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:24,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2024-01-31 16:44:24,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:24,887 INFO L124 PetriNetUnfolderBase]: 1378/2600 cut-off events. [2024-01-31 16:44:24,888 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-01-31 16:44:24,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4857 conditions, 2600 events. 1378/2600 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 18347 event pairs, 415 based on Foata normal form. 80/2644 useless extension candidates. Maximal degree in co-relation 4848. Up to 885 conditions per place. [2024-01-31 16:44:24,903 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 31 selfloop transitions, 6 changer transitions 35/86 dead transitions. [2024-01-31 16:44:24,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 86 transitions, 330 flow [2024-01-31 16:44:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:44:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:44:24,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2024-01-31 16:44:24,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6724738675958188 [2024-01-31 16:44:24,910 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 76 flow. Second operand 7 states and 193 transitions. [2024-01-31 16:44:24,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 86 transitions, 330 flow [2024-01-31 16:44:24,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 86 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:44:24,919 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 149 flow [2024-01-31 16:44:24,919 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=149, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2024-01-31 16:44:24,920 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2024-01-31 16:44:24,924 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 149 flow [2024-01-31 16:44:24,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 16:44:24,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:24,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:24,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:44:24,925 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 16:44:24,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:24,926 INFO L85 PathProgramCache]: Analyzing trace with hash -381210338, now seen corresponding path program 1 times [2024-01-31 16:44:24,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:24,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603018501] [2024-01-31 16:44:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:24,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:25,152 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 16:44:25,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:25,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603018501] [2024-01-31 16:44:25,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603018501] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:25,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:25,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:25,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79225808] [2024-01-31 16:44:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:25,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:25,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:25,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:25,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:25,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2024-01-31 16:44:25,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 16:44:25,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:25,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2024-01-31 16:44:25,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:25,425 INFO L124 PetriNetUnfolderBase]: 1180/2271 cut-off events. [2024-01-31 16:44:25,426 INFO L125 PetriNetUnfolderBase]: For 2731/2731 co-relation queries the response was YES. [2024-01-31 16:44:25,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6454 conditions, 2271 events. 1180/2271 cut-off events. For 2731/2731 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15822 event pairs, 203 based on Foata normal form. 58/2314 useless extension candidates. Maximal degree in co-relation 6438. Up to 782 conditions per place. [2024-01-31 16:44:25,439 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 36 selfloop transitions, 10 changer transitions 40/100 dead transitions. [2024-01-31 16:44:25,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 100 transitions, 612 flow [2024-01-31 16:44:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:25,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-01-31 16:44:25,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6268292682926829 [2024-01-31 16:44:25,441 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 149 flow. Second operand 10 states and 257 transitions. [2024-01-31 16:44:25,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 100 transitions, 612 flow [2024-01-31 16:44:25,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 100 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:44:25,448 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 221 flow [2024-01-31 16:44:25,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-01-31 16:44:25,448 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 20 predicate places. [2024-01-31 16:44:25,449 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 221 flow [2024-01-31 16:44:25,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 16:44:25,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:25,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:25,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:44:25,450 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 16:44:25,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1584201224, now seen corresponding path program 1 times [2024-01-31 16:44:25,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:25,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689937013] [2024-01-31 16:44:25,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:25,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:25,562 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 16:44:25,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:25,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689937013] [2024-01-31 16:44:25,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689937013] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:25,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:25,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320932692] [2024-01-31 16:44:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:25,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:25,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:25,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:25,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:25,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2024-01-31 16:44:25,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 16:44:25,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:25,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2024-01-31 16:44:25,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:25,834 INFO L124 PetriNetUnfolderBase]: 1100/2205 cut-off events. [2024-01-31 16:44:25,834 INFO L125 PetriNetUnfolderBase]: For 6362/6374 co-relation queries the response was YES. [2024-01-31 16:44:25,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7048 conditions, 2205 events. 1100/2205 cut-off events. For 6362/6374 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 15793 event pairs, 184 based on Foata normal form. 67/2262 useless extension candidates. Maximal degree in co-relation 7024. Up to 743 conditions per place. [2024-01-31 16:44:25,847 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 40 selfloop transitions, 12 changer transitions 42/108 dead transitions. [2024-01-31 16:44:25,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 758 flow [2024-01-31 16:44:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-01-31 16:44:25,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-01-31 16:44:25,849 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 221 flow. Second operand 10 states and 256 transitions. [2024-01-31 16:44:25,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 758 flow [2024-01-31 16:44:25,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 108 transitions, 702 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-01-31 16:44:25,859 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 311 flow [2024-01-31 16:44:25,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-01-31 16:44:25,860 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 26 predicate places. [2024-01-31 16:44:25,861 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 311 flow [2024-01-31 16:44:25,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 16:44:25,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:25,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:25,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:44:25,861 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 16:44:25,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash -891212575, now seen corresponding path program 1 times [2024-01-31 16:44:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:25,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333003673] [2024-01-31 16:44:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:25,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:25,986 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 16:44:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333003673] [2024-01-31 16:44:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333003673] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:25,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:25,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:44:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172460532] [2024-01-31 16:44:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:25,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:44:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:44:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:44:25,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:25,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 311 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 16:44:25,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:25,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:25,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:26,165 INFO L124 PetriNetUnfolderBase]: 1045/2279 cut-off events. [2024-01-31 16:44:26,166 INFO L125 PetriNetUnfolderBase]: For 3562/3632 co-relation queries the response was YES. [2024-01-31 16:44:26,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5872 conditions, 2279 events. 1045/2279 cut-off events. For 3562/3632 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 17095 event pairs, 194 based on Foata normal form. 140/2303 useless extension candidates. Maximal degree in co-relation 5843. Up to 853 conditions per place. [2024-01-31 16:44:26,180 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 26 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-01-31 16:44:26,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 407 flow [2024-01-31 16:44:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:44:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:44:26,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-01-31 16:44:26,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7621951219512195 [2024-01-31 16:44:26,181 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 311 flow. Second operand 4 states and 125 transitions. [2024-01-31 16:44:26,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 407 flow [2024-01-31 16:44:26,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 385 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-01-31 16:44:26,194 INFO L231 Difference]: Finished difference. Result has 66 places, 53 transitions, 327 flow [2024-01-31 16:44:26,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=327, PETRI_PLACES=66, PETRI_TRANSITIONS=53} [2024-01-31 16:44:26,194 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 21 predicate places. [2024-01-31 16:44:26,195 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 327 flow [2024-01-31 16:44:26,195 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 16:44:26,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:26,195 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:26,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:44:26,195 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 16:44:26,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:26,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2063303971, now seen corresponding path program 1 times [2024-01-31 16:44:26,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:26,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970658401] [2024-01-31 16:44:26,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:26,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:26,283 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 16:44:26,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970658401] [2024-01-31 16:44:26,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970658401] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:26,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:26,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:26,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254597400] [2024-01-31 16:44:26,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:26,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:26,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:26,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:26,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:26,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2024-01-31 16:44:26,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:44:26,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:26,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2024-01-31 16:44:26,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:26,736 INFO L124 PetriNetUnfolderBase]: 2143/4272 cut-off events. [2024-01-31 16:44:26,736 INFO L125 PetriNetUnfolderBase]: For 8210/8306 co-relation queries the response was YES. [2024-01-31 16:44:26,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13017 conditions, 4272 events. 2143/4272 cut-off events. For 8210/8306 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 34038 event pairs, 574 based on Foata normal form. 128/4066 useless extension candidates. Maximal degree in co-relation 12988. Up to 1219 conditions per place. [2024-01-31 16:44:26,760 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 53 selfloop transitions, 22 changer transitions 22/115 dead transitions. [2024-01-31 16:44:26,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 115 transitions, 840 flow [2024-01-31 16:44:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-01-31 16:44:26,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6268292682926829 [2024-01-31 16:44:26,761 INFO L175 Difference]: Start difference. First operand has 66 places, 53 transitions, 327 flow. Second operand 10 states and 257 transitions. [2024-01-31 16:44:26,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 115 transitions, 840 flow [2024-01-31 16:44:26,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 115 transitions, 834 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-01-31 16:44:26,771 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 479 flow [2024-01-31 16:44:26,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=479, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2024-01-31 16:44:26,773 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 35 predicate places. [2024-01-31 16:44:26,774 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 479 flow [2024-01-31 16:44:26,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:44:26,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:26,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:26,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:44:26,774 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 16:44:26,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2091095715, now seen corresponding path program 1 times [2024-01-31 16:44:26,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:26,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89964645] [2024-01-31 16:44:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:26,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:26,866 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 16:44:26,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:26,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89964645] [2024-01-31 16:44:26,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89964645] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:26,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:26,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:44:26,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889022428] [2024-01-31 16:44:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:26,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:44:26,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:26,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:44:26,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:44:26,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:26,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 479 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 16:44:26,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:26,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:26,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:27,167 INFO L124 PetriNetUnfolderBase]: 1339/2727 cut-off events. [2024-01-31 16:44:27,167 INFO L125 PetriNetUnfolderBase]: For 3651/4092 co-relation queries the response was YES. [2024-01-31 16:44:27,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7649 conditions, 2727 events. 1339/2727 cut-off events. For 3651/4092 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 19942 event pairs, 112 based on Foata normal form. 191/2801 useless extension candidates. Maximal degree in co-relation 7613. Up to 1148 conditions per place. [2024-01-31 16:44:27,181 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 33 selfloop transitions, 8 changer transitions 5/81 dead transitions. [2024-01-31 16:44:27,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 629 flow [2024-01-31 16:44:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:44:27,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:44:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-01-31 16:44:27,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7707317073170732 [2024-01-31 16:44:27,182 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 479 flow. Second operand 5 states and 158 transitions. [2024-01-31 16:44:27,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 629 flow [2024-01-31 16:44:27,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 81 transitions, 576 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-01-31 16:44:27,196 INFO L231 Difference]: Finished difference. Result has 85 places, 59 transitions, 442 flow [2024-01-31 16:44:27,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=442, PETRI_PLACES=85, PETRI_TRANSITIONS=59} [2024-01-31 16:44:27,197 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 40 predicate places. [2024-01-31 16:44:27,197 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 59 transitions, 442 flow [2024-01-31 16:44:27,197 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 16:44:27,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:27,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:27,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:44:27,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:27,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:27,198 INFO L85 PathProgramCache]: Analyzing trace with hash -59121419, now seen corresponding path program 1 times [2024-01-31 16:44:27,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:27,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351810012] [2024-01-31 16:44:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:27,308 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 16:44:27,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:27,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351810012] [2024-01-31 16:44:27,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351810012] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:27,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:27,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:27,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360387704] [2024-01-31 16:44:27,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:27,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:27,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:27,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:27,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:27,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2024-01-31 16:44:27,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 59 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 16:44:27,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:27,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2024-01-31 16:44:27,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:27,675 INFO L124 PetriNetUnfolderBase]: 1777/3762 cut-off events. [2024-01-31 16:44:27,675 INFO L125 PetriNetUnfolderBase]: For 11057/11481 co-relation queries the response was YES. [2024-01-31 16:44:27,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12505 conditions, 3762 events. 1777/3762 cut-off events. For 11057/11481 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 30980 event pairs, 658 based on Foata normal form. 93/3472 useless extension candidates. Maximal degree in co-relation 12466. Up to 1070 conditions per place. [2024-01-31 16:44:27,694 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 38 selfloop transitions, 12 changer transitions 20/92 dead transitions. [2024-01-31 16:44:27,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 92 transitions, 773 flow [2024-01-31 16:44:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-01-31 16:44:27,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6544715447154471 [2024-01-31 16:44:27,696 INFO L175 Difference]: Start difference. First operand has 85 places, 59 transitions, 442 flow. Second operand 6 states and 161 transitions. [2024-01-31 16:44:27,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 92 transitions, 773 flow [2024-01-31 16:44:27,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 92 transitions, 735 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-01-31 16:44:27,712 INFO L231 Difference]: Finished difference. Result has 84 places, 52 transitions, 381 flow [2024-01-31 16:44:27,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=381, PETRI_PLACES=84, PETRI_TRANSITIONS=52} [2024-01-31 16:44:27,713 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2024-01-31 16:44:27,713 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 52 transitions, 381 flow [2024-01-31 16:44:27,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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 16:44:27,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:27,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:27,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 16:44:27,714 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:27,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:27,714 INFO L85 PathProgramCache]: Analyzing trace with hash 876144013, now seen corresponding path program 2 times [2024-01-31 16:44:27,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:27,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021371190] [2024-01-31 16:44:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:27,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:27,793 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 16:44:27,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:27,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021371190] [2024-01-31 16:44:27,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021371190] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:27,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:27,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:27,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002922271] [2024-01-31 16:44:27,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:27,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:27,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:27,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:27,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:27,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 41 [2024-01-31 16:44:27,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 52 transitions, 381 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 16:44:27,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:27,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 41 [2024-01-31 16:44:27,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:28,030 INFO L124 PetriNetUnfolderBase]: 1016/1947 cut-off events. [2024-01-31 16:44:28,030 INFO L125 PetriNetUnfolderBase]: For 2844/3751 co-relation queries the response was YES. [2024-01-31 16:44:28,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5871 conditions, 1947 events. 1016/1947 cut-off events. For 2844/3751 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 12856 event pairs, 58 based on Foata normal form. 163/1991 useless extension candidates. Maximal degree in co-relation 5833. Up to 840 conditions per place. [2024-01-31 16:44:28,037 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 25 selfloop transitions, 11 changer transitions 14/71 dead transitions. [2024-01-31 16:44:28,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 71 transitions, 515 flow [2024-01-31 16:44:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 183 transitions. [2024-01-31 16:44:28,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7439024390243902 [2024-01-31 16:44:28,039 INFO L175 Difference]: Start difference. First operand has 84 places, 52 transitions, 381 flow. Second operand 6 states and 183 transitions. [2024-01-31 16:44:28,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 71 transitions, 515 flow [2024-01-31 16:44:28,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 71 transitions, 455 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-01-31 16:44:28,043 INFO L231 Difference]: Finished difference. Result has 75 places, 43 transitions, 263 flow [2024-01-31 16:44:28,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=263, PETRI_PLACES=75, PETRI_TRANSITIONS=43} [2024-01-31 16:44:28,044 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 30 predicate places. [2024-01-31 16:44:28,045 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 43 transitions, 263 flow [2024-01-31 16:44:28,045 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 16:44:28,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:28,045 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 16:44:28,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-31 16:44:28,045 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:28,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash 726977576, now seen corresponding path program 1 times [2024-01-31 16:44:28,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:28,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683578140] [2024-01-31 16:44:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:28,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:28,184 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 16:44:28,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:28,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683578140] [2024-01-31 16:44:28,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683578140] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:28,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:28,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:28,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408134588] [2024-01-31 16:44:28,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:28,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:28,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:28,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:28,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:28,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-01-31 16:44:28,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 43 transitions, 263 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 16:44:28,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:28,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-01-31 16:44:28,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:28,293 INFO L124 PetriNetUnfolderBase]: 198/432 cut-off events. [2024-01-31 16:44:28,293 INFO L125 PetriNetUnfolderBase]: For 870/880 co-relation queries the response was YES. [2024-01-31 16:44:28,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1402 conditions, 432 events. 198/432 cut-off events. For 870/880 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1968 event pairs, 22 based on Foata normal form. 8/422 useless extension candidates. Maximal degree in co-relation 1371. Up to 186 conditions per place. [2024-01-31 16:44:28,295 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2024-01-31 16:44:28,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 56 transitions, 377 flow [2024-01-31 16:44:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:44:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:44:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 149 transitions. [2024-01-31 16:44:28,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.519163763066202 [2024-01-31 16:44:28,296 INFO L175 Difference]: Start difference. First operand has 75 places, 43 transitions, 263 flow. Second operand 7 states and 149 transitions. [2024-01-31 16:44:28,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 56 transitions, 377 flow [2024-01-31 16:44:28,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 56 transitions, 249 flow, removed 21 selfloop flow, removed 23 redundant places. [2024-01-31 16:44:28,299 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-01-31 16:44:28,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-01-31 16:44:28,300 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2024-01-31 16:44:28,301 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-01-31 16:44:28,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 16:44:28,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-01-31 16:44:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-01-31 16:44:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-01-31 16:44:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-01-31 16:44:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-01-31 16:44:28,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-31 16:44:28,305 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:28,307 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:44:28,307 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:44:28,310 INFO L503 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-01-31 16:44:28,310 INFO L504 ceAbstractionStarter]: WitnessConsidered=1 [2024-01-31 16:44:28,311 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:28 BasicIcfg [2024-01-31 16:44:28,311 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:44:28,311 INFO L158 Benchmark]: Toolchain (without parser) took 5988.90ms. Allocated memory was 182.5MB in the beginning and 314.6MB in the end (delta: 132.1MB). Free memory was 135.8MB in the beginning and 109.9MB in the end (delta: 25.8MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. [2024-01-31 16:44:28,311 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:28,311 INFO L158 Benchmark]: Witness Parser took 0.24ms. Allocated memory is still 182.5MB. Free memory is still 155.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:28,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 777.52ms. Allocated memory is still 182.5MB. Free memory was 135.8MB in the beginning and 52.9MB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-01-31 16:44:28,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.54ms. Allocated memory is still 182.5MB. Free memory was 51.9MB in the beginning and 50.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:44:28,312 INFO L158 Benchmark]: Boogie Preprocessor took 91.01ms. Allocated memory is still 182.5MB. Free memory was 50.9MB in the beginning and 152.2MB in the end (delta: -101.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-31 16:44:28,312 INFO L158 Benchmark]: RCFGBuilder took 421.43ms. Allocated memory is still 182.5MB. Free memory was 152.2MB in the beginning and 131.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-31 16:44:28,313 INFO L158 Benchmark]: TraceAbstraction took 4642.93ms. Allocated memory was 182.5MB in the beginning and 314.6MB in the end (delta: 132.1MB). Free memory was 130.2MB in the beginning and 109.9MB in the end (delta: 20.3MB). Peak memory consumption was 153.4MB. Max. memory is 16.1GB. [2024-01-31 16:44:28,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.24ms. Allocated memory is still 182.5MB. Free memory is still 155.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 777.52ms. Allocated memory is still 182.5MB. Free memory was 135.8MB in the beginning and 52.9MB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.54ms. Allocated memory is still 182.5MB. Free memory was 51.9MB in the beginning and 50.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.01ms. Allocated memory is still 182.5MB. Free memory was 50.9MB in the beginning and 152.2MB in the end (delta: -101.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 421.43ms. Allocated memory is still 182.5MB. Free memory was 152.2MB in the beginning and 131.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4642.93ms. Allocated memory was 182.5MB in the beginning and 314.6MB in the end (delta: 132.1MB). Free memory was 130.2MB in the beginning and 109.9MB in the end (delta: 20.3MB). Peak memory consumption was 153.4MB. 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: 4.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 441 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 897 IncrementalHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 83 mSDtfsCounter, 897 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=479occurred in iteration=6, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 895 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:44:28,335 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