./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/rfi000_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/rfi000_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/rfi000_tso.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-?-80b1b13-m [2024-01-31 16:43:28,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:43:28,952 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:43:28,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:43:28,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:43:29,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:43:29,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:43:29,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:43:29,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:43:29,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:43:29,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:43:29,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:43:29,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:43:29,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:43:29,014 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:43:29,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:43:29,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:43:29,015 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:43:29,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:43:29,015 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:43:29,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:43:29,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:43:29,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:43:29,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:43:29,017 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:43:29,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:43:29,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:43:29,017 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:43:29,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:43:29,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:43:29,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:43:29,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:43:29,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:43:29,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:43:29,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:43:29,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:43:29,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:43:29,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:43:29,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:43:29,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:43:29,021 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:43:29,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:43:29,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:43:29,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:43:29,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:43:29,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:43:29,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:43:29,270 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:43:29,271 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:43:29,272 INFO L431 ainManager$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/rfi000_tso.yml/witness.yml [2024-01-31 16:43:29,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:43:29,946 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:43:29,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2024-01-31 16:43:31,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:43:31,374 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:43:31,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2024-01-31 16:43:31,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59cbfc14/ad2a8e19d52d44dbb449752242064269/FLAGc9ff5761f [2024-01-31 16:43:31,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59cbfc14/ad2a8e19d52d44dbb449752242064269 [2024-01-31 16:43:31,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:43:31,412 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:43:31,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:43:31,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:43:31,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:43:31,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:43:29" (1/2) ... [2024-01-31 16:43:31,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3ff17e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:43:31, skipping insertion in model container [2024-01-31 16:43:31,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:43:29" (1/2) ... [2024-01-31 16:43:31,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@243940ab and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:43:31, skipping insertion in model container [2024-01-31 16:43:31,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:43:31" (2/2) ... [2024-01-31 16:43:31,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3ff17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:31, skipping insertion in model container [2024-01-31 16:43:31,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:43:31" (2/2) ... [2024-01-31 16:43:31,421 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:43:33,559 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:43:33,560 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:43:33,560 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:43:33,615 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:43:33,801 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/rfi000_tso.i[944,957] [2024-01-31 16:43:34,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:43:34,101 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:43:34,114 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/rfi000_tso.i[944,957] Start Parsing Local [2024-01-31 16:43:34,137 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-01-31 16:43:34,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:43:34,248 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:43:34,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34 WrapperNode [2024-01-31 16:43:34,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:43:34,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:43:34,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:43:34,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:43:34,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,306 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2024-01-31 16:43:34,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:43:34,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:43:34,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:43:34,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:43:34,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,323 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,339 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-31 16:43:34,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:43:34,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:43:34,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:43:34,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:43:34,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (1/1) ... [2024-01-31 16:43:34,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:43:34,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:43:34,391 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 16:43:34,401 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 16:43:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:43:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:43:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:43:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:43:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:43:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:43:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:43:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:43:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:43:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:43:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:43:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:43:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:43:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:43:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:43:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:43:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:43:34,429 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 16:43:34,547 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:43:34,549 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:43:34,831 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:43:34,832 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:43:35,085 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:43:35,086 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:43:35,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:43:35 BoogieIcfgContainer [2024-01-31 16:43:35,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:43:35,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:43:35,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:43:35,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:43:35,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:43:29" (1/4) ... [2024-01-31 16:43:35,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b336387 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:43:35, skipping insertion in model container [2024-01-31 16:43:35,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:43:31" (2/4) ... [2024-01-31 16:43:35,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b336387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:43:35, skipping insertion in model container [2024-01-31 16:43:35,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:34" (3/4) ... [2024-01-31 16:43:35,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b336387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:43:35, skipping insertion in model container [2024-01-31 16:43:35,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:43:35" (4/4) ... [2024-01-31 16:43:35,099 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2024-01-31 16:43:35,116 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:43:35,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-01-31 16:43:35,117 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:43:35,156 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:43:35,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 35 transitions, 78 flow [2024-01-31 16:43:35,230 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-01-31 16:43:35,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:43:35,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 1/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-01-31 16:43:35,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 35 transitions, 78 flow [2024-01-31 16:43:35,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 33 transitions, 72 flow [2024-01-31 16:43:35,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:43:35,265 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;@60200a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:43:35,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-01-31 16:43:35,273 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:43:35,273 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-01-31 16:43:35,274 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:43:35,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:35,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:35,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:35,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:35,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1391058482, now seen corresponding path program 1 times [2024-01-31 16:43:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:35,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813026390] [2024-01-31 16:43:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:35,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:35,595 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 16:43:35,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:35,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813026390] [2024-01-31 16:43:35,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813026390] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:35,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:35,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:43:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323747607] [2024-01-31 16:43:35,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-31 16:43:35,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:35,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-31 16:43:35,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-31 16:43:35,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2024-01-31 16:43:35,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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 16:43:35,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:35,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2024-01-31 16:43:35,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:35,846 INFO L124 PetriNetUnfolderBase]: 208/501 cut-off events. [2024-01-31 16:43:35,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:43:35,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 501 events. 208/501 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3039 event pairs, 208 based on Foata normal form. 21/450 useless extension candidates. Maximal degree in co-relation 865. Up to 363 conditions per place. [2024-01-31 16:43:35,855 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 18 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2024-01-31 16:43:35,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 31 transitions, 104 flow [2024-01-31 16:43:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-31 16:43:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-01-31 16:43:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 50 transitions. [2024-01-31 16:43:35,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-01-31 16:43:35,868 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 72 flow. Second operand 2 states and 50 transitions. [2024-01-31 16:43:35,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 31 transitions, 104 flow [2024-01-31 16:43:35,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 31 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:43:35,874 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 66 flow [2024-01-31 16:43:35,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2024-01-31 16:43:35,880 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2024-01-31 16:43:35,880 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 66 flow [2024-01-31 16:43:35,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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 16:43:35,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:35,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:35,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:43:35,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:35,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:35,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1391058483, now seen corresponding path program 1 times [2024-01-31 16:43:35,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:35,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128324557] [2024-01-31 16:43:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:36,119 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 16:43:36,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:36,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128324557] [2024-01-31 16:43:36,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128324557] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:36,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:36,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:43:36,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414687803] [2024-01-31 16:43:36,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:36,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:43:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:36,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:43:36,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:43:36,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2024-01-31 16:43:36,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 16:43:36,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:36,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2024-01-31 16:43:36,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:36,250 INFO L124 PetriNetUnfolderBase]: 176/358 cut-off events. [2024-01-31 16:43:36,251 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:43:36,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 358 events. 176/358 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1837 event pairs, 16 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 675. Up to 266 conditions per place. [2024-01-31 16:43:36,255 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 21 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2024-01-31 16:43:36,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 130 flow [2024-01-31 16:43:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:43:36,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:43:36,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-01-31 16:43:36,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-01-31 16:43:36,258 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 66 flow. Second operand 3 states and 71 transitions. [2024-01-31 16:43:36,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 130 flow [2024-01-31 16:43:36,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 130 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 16:43:36,261 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 66 flow [2024-01-31 16:43:36,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2024-01-31 16:43:36,263 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2024-01-31 16:43:36,265 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 66 flow [2024-01-31 16:43:36,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 16:43:36,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:36,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:36,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:43:36,271 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:36,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash 125501410, now seen corresponding path program 1 times [2024-01-31 16:43:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:36,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090931487] [2024-01-31 16:43:36,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:36,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:36,366 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 16:43:36,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090931487] [2024-01-31 16:43:36,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090931487] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:36,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:36,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:43:36,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513986516] [2024-01-31 16:43:36,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:36,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:43:36,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:36,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:43:36,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:43:36,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-01-31 16:43:36,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 16:43:36,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:36,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-01-31 16:43:36,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:36,516 INFO L124 PetriNetUnfolderBase]: 230/448 cut-off events. [2024-01-31 16:43:36,516 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-01-31 16:43:36,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 448 events. 230/448 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2389 event pairs, 176 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 883. Up to 310 conditions per place. [2024-01-31 16:43:36,522 INFO L140 encePairwiseOnDemand]: 33/35 looper letters, 24 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-01-31 16:43:36,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 132 flow [2024-01-31 16:43:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:43:36,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:43:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-01-31 16:43:36,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-01-31 16:43:36,525 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 66 flow. Second operand 3 states and 60 transitions. [2024-01-31 16:43:36,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 132 flow [2024-01-31 16:43:36,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:43:36,527 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 60 flow [2024-01-31 16:43:36,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-01-31 16:43:36,568 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2024-01-31 16:43:36,569 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 60 flow [2024-01-31 16:43:36,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 16:43:36,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:36,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:36,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:43:36,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:36,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash -404423201, now seen corresponding path program 1 times [2024-01-31 16:43:36,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:36,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825771454] [2024-01-31 16:43:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:36,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:36,851 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 16:43:36,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:36,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825771454] [2024-01-31 16:43:36,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825771454] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:36,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:36,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:43:36,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491264032] [2024-01-31 16:43:36,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:36,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:43:36,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:36,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:43:36,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:43:36,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-01-31 16:43:36,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 16:43:36,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:36,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-01-31 16:43:36,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:37,105 INFO L124 PetriNetUnfolderBase]: 205/414 cut-off events. [2024-01-31 16:43:37,105 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-31 16:43:37,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 414 events. 205/414 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2201 event pairs, 63 based on Foata normal form. 18/426 useless extension candidates. Maximal degree in co-relation 802. Up to 233 conditions per place. [2024-01-31 16:43:37,108 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 21 selfloop transitions, 2 changer transitions 21/53 dead transitions. [2024-01-31 16:43:37,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 53 transitions, 200 flow [2024-01-31 16:43:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:43:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:43:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2024-01-31 16:43:37,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020408163265306 [2024-01-31 16:43:37,111 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 60 flow. Second operand 7 states and 123 transitions. [2024-01-31 16:43:37,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 53 transitions, 200 flow [2024-01-31 16:43:37,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 53 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:43:37,113 INFO L231 Difference]: Finished difference. Result has 45 places, 27 transitions, 75 flow [2024-01-31 16:43:37,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=75, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2024-01-31 16:43:37,114 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2024-01-31 16:43:37,114 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 27 transitions, 75 flow [2024-01-31 16:43:37,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 16:43:37,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:37,115 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 16:43:37,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:43:37,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:37,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:37,116 INFO L85 PathProgramCache]: Analyzing trace with hash 330661647, now seen corresponding path program 1 times [2024-01-31 16:43:37,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:37,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33277338] [2024-01-31 16:43:37,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:37,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:37,328 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 16:43:37,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:37,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33277338] [2024-01-31 16:43:37,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33277338] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:37,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:37,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:43:37,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388463496] [2024-01-31 16:43:37,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:37,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:43:37,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:37,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:43:37,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:43:37,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-01-31 16:43:37,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 27 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:37,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:37,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-01-31 16:43:37,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:37,522 INFO L124 PetriNetUnfolderBase]: 168/350 cut-off events. [2024-01-31 16:43:37,523 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-01-31 16:43:37,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 350 events. 168/350 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1780 event pairs, 68 based on Foata normal form. 12/356 useless extension candidates. Maximal degree in co-relation 771. Up to 172 conditions per place. [2024-01-31 16:43:37,526 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 21 selfloop transitions, 2 changer transitions 17/49 dead transitions. [2024-01-31 16:43:37,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 49 transitions, 209 flow [2024-01-31 16:43:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:43:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:43:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2024-01-31 16:43:37,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-01-31 16:43:37,533 INFO L175 Difference]: Start difference. First operand has 45 places, 27 transitions, 75 flow. Second operand 7 states and 119 transitions. [2024-01-31 16:43:37,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 49 transitions, 209 flow [2024-01-31 16:43:37,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 189 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-01-31 16:43:37,539 INFO L231 Difference]: Finished difference. Result has 46 places, 27 transitions, 79 flow [2024-01-31 16:43:37,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=79, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2024-01-31 16:43:37,542 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 7 predicate places. [2024-01-31 16:43:37,542 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 79 flow [2024-01-31 16:43:37,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:37,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:37,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:37,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:43:37,543 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:37,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:37,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1918512994, now seen corresponding path program 1 times [2024-01-31 16:43:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:37,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275993021] [2024-01-31 16:43:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:38,424 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 16:43:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:38,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275993021] [2024-01-31 16:43:38,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275993021] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:38,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:38,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-01-31 16:43:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455775832] [2024-01-31 16:43:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:38,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-31 16:43:38,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:38,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-31 16:43:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-01-31 16:43:38,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-01-31 16:43:38,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 79 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 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 16:43:38,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:38,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-01-31 16:43:38,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:38,637 INFO L124 PetriNetUnfolderBase]: 229/456 cut-off events. [2024-01-31 16:43:38,638 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-01-31 16:43:38,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 456 events. 229/456 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2166 event pairs, 116 based on Foata normal form. 12/466 useless extension candidates. Maximal degree in co-relation 1037. Up to 338 conditions per place. [2024-01-31 16:43:38,641 INFO L140 encePairwiseOnDemand]: 25/35 looper letters, 30 selfloop transitions, 11 changer transitions 12/61 dead transitions. [2024-01-31 16:43:38,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 61 transitions, 267 flow [2024-01-31 16:43:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 16:43:38,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 16:43:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 134 transitions. [2024-01-31 16:43:38,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4785714285714286 [2024-01-31 16:43:38,643 INFO L175 Difference]: Start difference. First operand has 46 places, 27 transitions, 79 flow. Second operand 8 states and 134 transitions. [2024-01-31 16:43:38,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 61 transitions, 267 flow [2024-01-31 16:43:38,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 242 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-01-31 16:43:38,646 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 140 flow [2024-01-31 16:43:38,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=140, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2024-01-31 16:43:38,647 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2024-01-31 16:43:38,648 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 140 flow [2024-01-31 16:43:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 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 16:43:38,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:38,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:38,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:43:38,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:38,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash -354735180, now seen corresponding path program 2 times [2024-01-31 16:43:38,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:38,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165526042] [2024-01-31 16:43:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:38,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:39,453 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 16:43:39,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:39,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165526042] [2024-01-31 16:43:39,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165526042] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:39,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:39,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-31 16:43:39,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342434030] [2024-01-31 16:43:39,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:39,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-31 16:43:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-31 16:43:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-01-31 16:43:39,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2024-01-31 16:43:39,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 140 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:39,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:39,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2024-01-31 16:43:39,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:39,825 INFO L124 PetriNetUnfolderBase]: 382/693 cut-off events. [2024-01-31 16:43:39,825 INFO L125 PetriNetUnfolderBase]: For 245/248 co-relation queries the response was YES. [2024-01-31 16:43:39,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1803 conditions, 693 events. 382/693 cut-off events. For 245/248 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3122 event pairs, 211 based on Foata normal form. 22/714 useless extension candidates. Maximal degree in co-relation 1792. Up to 527 conditions per place. [2024-01-31 16:43:39,831 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 34 selfloop transitions, 8 changer transitions 23/71 dead transitions. [2024-01-31 16:43:39,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 71 transitions, 368 flow [2024-01-31 16:43:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 16:43:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 16:43:39,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2024-01-31 16:43:39,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-01-31 16:43:39,833 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 140 flow. Second operand 8 states and 126 transitions. [2024-01-31 16:43:39,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 71 transitions, 368 flow [2024-01-31 16:43:39,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 71 transitions, 360 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-01-31 16:43:39,838 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 177 flow [2024-01-31 16:43:39,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=177, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2024-01-31 16:43:39,839 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2024-01-31 16:43:39,839 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 177 flow [2024-01-31 16:43:39,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:39,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:39,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:39,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:43:39,840 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:39,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:39,841 INFO L85 PathProgramCache]: Analyzing trace with hash 647426564, now seen corresponding path program 3 times [2024-01-31 16:43:39,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:39,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594333503] [2024-01-31 16:43:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:39,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:40,504 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 16:43:40,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:40,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594333503] [2024-01-31 16:43:40,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594333503] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:40,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:40,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-31 16:43:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492782758] [2024-01-31 16:43:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:40,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-31 16:43:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-31 16:43:40,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-01-31 16:43:40,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2024-01-31 16:43:40,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 177 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:40,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:40,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2024-01-31 16:43:40,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:40,860 INFO L124 PetriNetUnfolderBase]: 354/649 cut-off events. [2024-01-31 16:43:40,860 INFO L125 PetriNetUnfolderBase]: For 539/542 co-relation queries the response was YES. [2024-01-31 16:43:40,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 649 events. 354/649 cut-off events. For 539/542 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2807 event pairs, 199 based on Foata normal form. 22/670 useless extension candidates. Maximal degree in co-relation 1841. Up to 476 conditions per place. [2024-01-31 16:43:40,867 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 36 selfloop transitions, 10 changer transitions 23/75 dead transitions. [2024-01-31 16:43:40,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 75 transitions, 450 flow [2024-01-31 16:43:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 16:43:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 16:43:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 125 transitions. [2024-01-31 16:43:40,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2024-01-31 16:43:40,869 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 177 flow. Second operand 8 states and 125 transitions. [2024-01-31 16:43:40,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 75 transitions, 450 flow [2024-01-31 16:43:40,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 75 transitions, 423 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-01-31 16:43:40,876 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 216 flow [2024-01-31 16:43:40,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=216, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2024-01-31 16:43:40,878 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 22 predicate places. [2024-01-31 16:43:40,878 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 216 flow [2024-01-31 16:43:40,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:40,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:40,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:40,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 16:43:40,879 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:40,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:40,880 INFO L85 PathProgramCache]: Analyzing trace with hash 359799231, now seen corresponding path program 1 times [2024-01-31 16:43:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:40,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100468849] [2024-01-31 16:43:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:40,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:41,040 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 16:43:41,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:41,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100468849] [2024-01-31 16:43:41,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100468849] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:41,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:41,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:43:41,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697607943] [2024-01-31 16:43:41,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:41,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:43:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:43:41,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:43:41,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-01-31 16:43:41,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 16:43:41,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:41,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-01-31 16:43:41,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:41,173 INFO L124 PetriNetUnfolderBase]: 226/464 cut-off events. [2024-01-31 16:43:41,174 INFO L125 PetriNetUnfolderBase]: For 311/314 co-relation queries the response was YES. [2024-01-31 16:43:41,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 464 events. 226/464 cut-off events. For 311/314 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2068 event pairs, 46 based on Foata normal form. 36/495 useless extension candidates. Maximal degree in co-relation 1258. Up to 195 conditions per place. [2024-01-31 16:43:41,179 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 39 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2024-01-31 16:43:41,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 55 transitions, 326 flow [2024-01-31 16:43:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:43:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:43:41,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-01-31 16:43:41,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-01-31 16:43:41,181 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 216 flow. Second operand 4 states and 89 transitions. [2024-01-31 16:43:41,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 55 transitions, 326 flow [2024-01-31 16:43:41,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 284 flow, removed 10 selfloop flow, removed 11 redundant places. [2024-01-31 16:43:41,185 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 168 flow [2024-01-31 16:43:41,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-01-31 16:43:41,186 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 12 predicate places. [2024-01-31 16:43:41,187 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 168 flow [2024-01-31 16:43:41,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 16:43:41,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:41,187 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 16:43:41,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-31 16:43:41,188 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:41,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash 589202518, now seen corresponding path program 1 times [2024-01-31 16:43:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:41,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006318616] [2024-01-31 16:43:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:42,384 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 16:43:42,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:42,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006318616] [2024-01-31 16:43:42,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006318616] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:42,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:42,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-31 16:43:42,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283202424] [2024-01-31 16:43:42,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:42,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-31 16:43:42,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:42,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-31 16:43:42,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-01-31 16:43:42,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-01-31 16:43:42,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 168 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 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 16:43:42,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:42,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-01-31 16:43:42,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:42,706 INFO L124 PetriNetUnfolderBase]: 254/556 cut-off events. [2024-01-31 16:43:42,706 INFO L125 PetriNetUnfolderBase]: For 304/344 co-relation queries the response was YES. [2024-01-31 16:43:42,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 556 events. 254/556 cut-off events. For 304/344 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2933 event pairs, 68 based on Foata normal form. 9/542 useless extension candidates. Maximal degree in co-relation 1507. Up to 248 conditions per place. [2024-01-31 16:43:42,710 INFO L140 encePairwiseOnDemand]: 24/35 looper letters, 36 selfloop transitions, 18 changer transitions 11/76 dead transitions. [2024-01-31 16:43:42,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 433 flow [2024-01-31 16:43:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-31 16:43:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-31 16:43:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 152 transitions. [2024-01-31 16:43:42,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48253968253968255 [2024-01-31 16:43:42,712 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 168 flow. Second operand 9 states and 152 transitions. [2024-01-31 16:43:42,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 76 transitions, 433 flow [2024-01-31 16:43:42,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 76 transitions, 431 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:43:42,716 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 291 flow [2024-01-31 16:43:42,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=291, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2024-01-31 16:43:42,718 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 25 predicate places. [2024-01-31 16:43:42,718 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 291 flow [2024-01-31 16:43:42,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 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 16:43:42,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:42,719 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 16:43:42,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-31 16:43:42,719 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:42,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:42,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1022306400, now seen corresponding path program 2 times [2024-01-31 16:43:42,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:42,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618477806] [2024-01-31 16:43:42,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:42,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:43,929 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 16:43:43,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:43,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618477806] [2024-01-31 16:43:43,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618477806] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-31 16:43:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732575890] [2024-01-31 16:43:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:43,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-01-31 16:43:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-01-31 16:43:43,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-01-31 16:43:43,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-01-31 16:43:43,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 291 flow. Second operand has 11 states, 11 states have (on average 11.454545454545455) internal successors, (126), 11 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 16:43:43,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:43,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-01-31 16:43:43,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:44,533 INFO L124 PetriNetUnfolderBase]: 377/835 cut-off events. [2024-01-31 16:43:44,533 INFO L125 PetriNetUnfolderBase]: For 1308/1344 co-relation queries the response was YES. [2024-01-31 16:43:44,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2756 conditions, 835 events. 377/835 cut-off events. For 1308/1344 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4882 event pairs, 147 based on Foata normal form. 15/817 useless extension candidates. Maximal degree in co-relation 2737. Up to 285 conditions per place. [2024-01-31 16:43:44,541 INFO L140 encePairwiseOnDemand]: 24/35 looper letters, 52 selfloop transitions, 22 changer transitions 11/96 dead transitions. [2024-01-31 16:43:44,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 96 transitions, 707 flow [2024-01-31 16:43:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-31 16:43:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-01-31 16:43:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 185 transitions. [2024-01-31 16:43:44,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4805194805194805 [2024-01-31 16:43:44,543 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 291 flow. Second operand 11 states and 185 transitions. [2024-01-31 16:43:44,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 96 transitions, 707 flow [2024-01-31 16:43:44,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 96 transitions, 650 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-01-31 16:43:44,550 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 445 flow [2024-01-31 16:43:44,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=445, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2024-01-31 16:43:44,551 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2024-01-31 16:43:44,551 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 445 flow [2024-01-31 16:43:44,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.454545454545455) internal successors, (126), 11 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 16:43:44,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:44,552 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 16:43:44,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-31 16:43:44,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:44,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1670235060, now seen corresponding path program 3 times [2024-01-31 16:43:44,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:44,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919981889] [2024-01-31 16:43:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:44,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:44,693 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 16:43:44,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919981889] [2024-01-31 16:43:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919981889] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:43:44,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821029506] [2024-01-31 16:43:44,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:44,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:43:44,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:44,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:43:44,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:43:44,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-01-31 16:43:44,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 445 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 16:43:44,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:44,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-01-31 16:43:44,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:44,835 INFO L124 PetriNetUnfolderBase]: 290/627 cut-off events. [2024-01-31 16:43:44,836 INFO L125 PetriNetUnfolderBase]: For 1319/1320 co-relation queries the response was YES. [2024-01-31 16:43:44,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2230 conditions, 627 events. 290/627 cut-off events. For 1319/1320 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3192 event pairs, 63 based on Foata normal form. 43/658 useless extension candidates. Maximal degree in co-relation 2207. Up to 283 conditions per place. [2024-01-31 16:43:44,840 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 43 selfloop transitions, 6 changer transitions 10/71 dead transitions. [2024-01-31 16:43:44,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 71 transitions, 578 flow [2024-01-31 16:43:44,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:43:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:43:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2024-01-31 16:43:44,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56 [2024-01-31 16:43:44,842 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 445 flow. Second operand 5 states and 98 transitions. [2024-01-31 16:43:44,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 71 transitions, 578 flow [2024-01-31 16:43:44,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 71 transitions, 493 flow, removed 26 selfloop flow, removed 9 redundant places. [2024-01-31 16:43:44,848 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 290 flow [2024-01-31 16:43:44,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=290, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2024-01-31 16:43:44,849 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 30 predicate places. [2024-01-31 16:43:44,849 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 290 flow [2024-01-31 16:43:44,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 16:43:44,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:44,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:44,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-31 16:43:44,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:44,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash -121566102, now seen corresponding path program 1 times [2024-01-31 16:43:44,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:44,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498584140] [2024-01-31 16:43:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:44,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:45,435 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 16:43:45,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:45,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498584140] [2024-01-31 16:43:45,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498584140] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:45,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:45,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:43:45,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075628548] [2024-01-31 16:43:45,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:45,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:43:45,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:45,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:43:45,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:43:45,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 35 [2024-01-31 16:43:45,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:45,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:45,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 35 [2024-01-31 16:43:45,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:45,614 INFO L124 PetriNetUnfolderBase]: 205/451 cut-off events. [2024-01-31 16:43:45,614 INFO L125 PetriNetUnfolderBase]: For 528/528 co-relation queries the response was YES. [2024-01-31 16:43:45,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 451 events. 205/451 cut-off events. For 528/528 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2008 event pairs, 54 based on Foata normal form. 8/447 useless extension candidates. Maximal degree in co-relation 1356. Up to 187 conditions per place. [2024-01-31 16:43:45,617 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 27 selfloop transitions, 4 changer transitions 41/80 dead transitions. [2024-01-31 16:43:45,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 80 transitions, 570 flow [2024-01-31 16:43:45,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:43:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:43:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2024-01-31 16:43:45,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44761904761904764 [2024-01-31 16:43:45,619 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 290 flow. Second operand 6 states and 94 transitions. [2024-01-31 16:43:45,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 80 transitions, 570 flow [2024-01-31 16:43:45,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 80 transitions, 523 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-01-31 16:43:45,624 INFO L231 Difference]: Finished difference. Result has 69 places, 33 transitions, 147 flow [2024-01-31 16:43:45,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=147, PETRI_PLACES=69, PETRI_TRANSITIONS=33} [2024-01-31 16:43:45,625 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 30 predicate places. [2024-01-31 16:43:45,625 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 33 transitions, 147 flow [2024-01-31 16:43:45,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:45,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:45,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:45,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-31 16:43:45,626 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:45,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash -733415488, now seen corresponding path program 2 times [2024-01-31 16:43:45,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:45,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023673673] [2024-01-31 16:43:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:45,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:46,629 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 16:43:46,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:46,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023673673] [2024-01-31 16:43:46,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023673673] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:46,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:46,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-31 16:43:46,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754190681] [2024-01-31 16:43:46,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:46,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-01-31 16:43:46,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:46,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-01-31 16:43:46,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-01-31 16:43:46,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-01-31 16:43:46,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 33 transitions, 147 flow. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:46,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:46,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-01-31 16:43:46,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:46,854 INFO L124 PetriNetUnfolderBase]: 86/212 cut-off events. [2024-01-31 16:43:46,854 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-01-31 16:43:46,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 212 events. 86/212 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 690 event pairs, 35 based on Foata normal form. 4/211 useless extension candidates. Maximal degree in co-relation 539. Up to 88 conditions per place. [2024-01-31 16:43:46,856 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 20 selfloop transitions, 7 changer transitions 15/52 dead transitions. [2024-01-31 16:43:46,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 52 transitions, 283 flow [2024-01-31 16:43:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:43:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:43:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 143 transitions. [2024-01-31 16:43:46,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4085714285714286 [2024-01-31 16:43:46,857 INFO L175 Difference]: Start difference. First operand has 69 places, 33 transitions, 147 flow. Second operand 10 states and 143 transitions. [2024-01-31 16:43:46,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 52 transitions, 283 flow [2024-01-31 16:43:46,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 52 transitions, 227 flow, removed 17 selfloop flow, removed 16 redundant places. [2024-01-31 16:43:46,859 INFO L231 Difference]: Finished difference. Result has 56 places, 32 transitions, 124 flow [2024-01-31 16:43:46,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=124, PETRI_PLACES=56, PETRI_TRANSITIONS=32} [2024-01-31 16:43:46,860 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2024-01-31 16:43:46,860 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 32 transitions, 124 flow [2024-01-31 16:43:46,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:46,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:46,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:46,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-31 16:43:46,861 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:46,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:46,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2099931010, now seen corresponding path program 3 times [2024-01-31 16:43:46,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:46,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021925506] [2024-01-31 16:43:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:48,497 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 16:43:48,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:48,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021925506] [2024-01-31 16:43:48,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021925506] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:48,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:48,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-01-31 16:43:48,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645143504] [2024-01-31 16:43:48,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:48,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-01-31 16:43:48,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:48,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-01-31 16:43:48,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-01-31 16:43:48,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-01-31 16:43:48,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 32 transitions, 124 flow. Second operand has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 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 16:43:48,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:48,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-01-31 16:43:48,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:48,975 INFO L124 PetriNetUnfolderBase]: 83/208 cut-off events. [2024-01-31 16:43:48,975 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-01-31 16:43:48,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 208 events. 83/208 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 672 event pairs, 36 based on Foata normal form. 4/208 useless extension candidates. Maximal degree in co-relation 498. Up to 84 conditions per place. [2024-01-31 16:43:48,977 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 21 selfloop transitions, 5 changer transitions 16/52 dead transitions. [2024-01-31 16:43:48,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 52 transitions, 258 flow [2024-01-31 16:43:48,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:43:48,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:43:48,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 143 transitions. [2024-01-31 16:43:48,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4085714285714286 [2024-01-31 16:43:48,978 INFO L175 Difference]: Start difference. First operand has 56 places, 32 transitions, 124 flow. Second operand 10 states and 143 transitions. [2024-01-31 16:43:48,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 52 transitions, 258 flow [2024-01-31 16:43:48,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 52 transitions, 223 flow, removed 11 selfloop flow, removed 9 redundant places. [2024-01-31 16:43:48,980 INFO L231 Difference]: Finished difference. Result has 55 places, 29 transitions, 103 flow [2024-01-31 16:43:48,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=103, PETRI_PLACES=55, PETRI_TRANSITIONS=29} [2024-01-31 16:43:48,981 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 16 predicate places. [2024-01-31 16:43:48,981 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 29 transitions, 103 flow [2024-01-31 16:43:48,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 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 16:43:48,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:48,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:48,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-31 16:43:48,982 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-01-31 16:43:48,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash 11387754, now seen corresponding path program 4 times [2024-01-31 16:43:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:48,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795978779] [2024-01-31 16:43:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:48,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:49,935 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 16:43:49,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:49,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795978779] [2024-01-31 16:43:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795978779] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:49,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:49,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-31 16:43:49,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041215681] [2024-01-31 16:43:49,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:49,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-01-31 16:43:49,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:49,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-01-31 16:43:49,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-01-31 16:43:49,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-01-31 16:43:49,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 29 transitions, 103 flow. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:49,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:49,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-01-31 16:43:49,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:50,103 INFO L124 PetriNetUnfolderBase]: 41/105 cut-off events. [2024-01-31 16:43:50,103 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-31 16:43:50,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 105 events. 41/105 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 239 event pairs, 7 based on Foata normal form. 4/106 useless extension candidates. Maximal degree in co-relation 255. Up to 35 conditions per place. [2024-01-31 16:43:50,104 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-01-31 16:43:50,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 37 transitions, 172 flow [2024-01-31 16:43:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-31 16:43:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-31 16:43:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 119 transitions. [2024-01-31 16:43:50,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2024-01-31 16:43:50,105 INFO L175 Difference]: Start difference. First operand has 55 places, 29 transitions, 103 flow. Second operand 9 states and 119 transitions. [2024-01-31 16:43:50,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 37 transitions, 172 flow [2024-01-31 16:43:50,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 146 flow, removed 5 selfloop flow, removed 11 redundant places. [2024-01-31 16:43:50,106 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-01-31 16:43:50,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-01-31 16:43:50,106 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2024-01-31 16:43:50,106 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-01-31 16:43:50,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 16:43:50,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-01-31 16:43:50,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-01-31 16:43:50,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-01-31 16:43:50,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-01-31 16:43:50,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-01-31 16:43:50,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-01-31 16:43:50,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 8 remaining) [2024-01-31 16:43:50,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2024-01-31 16:43:50,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-31 16:43:50,110 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1, 1, 1, 1, 1, 1] [2024-01-31 16:43:50,121 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:43:50,121 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:43:50,124 INFO L503 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-01-31 16:43:50,125 INFO L504 ceAbstractionStarter]: WitnessConsidered=2 [2024-01-31 16:43:50,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:43:50 BasicIcfg [2024-01-31 16:43:50,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:43:50,126 INFO L158 Benchmark]: Toolchain (without parser) took 18714.71ms. Allocated memory was 341.8MB in the beginning and 614.5MB in the end (delta: 272.6MB). Free memory was 243.5MB in the beginning and 215.1MB in the end (delta: 28.4MB). Peak memory consumption was 301.0MB. Max. memory is 16.1GB. [2024-01-31 16:43:50,126 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 180.4MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:43:50,126 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:43:50,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2836.77ms. Allocated memory is still 341.8MB. Free memory was 242.4MB in the beginning and 117.8MB in the end (delta: 124.6MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. [2024-01-31 16:43:50,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.51ms. Allocated memory is still 341.8MB. Free memory was 117.8MB in the beginning and 114.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-31 16:43:50,127 INFO L158 Benchmark]: Boogie Preprocessor took 51.98ms. Allocated memory is still 341.8MB. Free memory was 114.7MB in the beginning and 110.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-31 16:43:50,127 INFO L158 Benchmark]: RCFGBuilder took 727.03ms. Allocated memory is still 341.8MB. Free memory was 110.5MB in the beginning and 244.4MB in the end (delta: -133.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-01-31 16:43:50,128 INFO L158 Benchmark]: TraceAbstraction took 15035.33ms. Allocated memory was 341.8MB in the beginning and 614.5MB in the end (delta: 272.6MB). Free memory was 243.4MB in the beginning and 215.1MB in the end (delta: 28.3MB). Peak memory consumption was 300.9MB. Max. memory is 16.1GB. [2024-01-31 16:43:50,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 180.4MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2836.77ms. Allocated memory is still 341.8MB. Free memory was 242.4MB in the beginning and 117.8MB in the end (delta: 124.6MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.51ms. Allocated memory is still 341.8MB. Free memory was 117.8MB in the beginning and 114.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.98ms. Allocated memory is still 341.8MB. Free memory was 114.7MB in the beginning and 110.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 727.03ms. Allocated memory is still 341.8MB. Free memory was 110.5MB in the beginning and 244.4MB in the end (delta: -133.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15035.33ms. Allocated memory was 341.8MB in the beginning and 614.5MB in the end (delta: 272.6MB). Free memory was 243.4MB in the beginning and 215.1MB in the end (delta: 28.3MB). Peak memory consumption was 300.9MB. 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 - 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 5 procedures, 55 locations, 8 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: 14.9s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 539 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 498 mSDsluCounter, 533 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 478 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2244 IncrementalHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 55 mSDtfsCounter, 2244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=445occurred in iteration=11, InterpolantAutomatonStates: 110, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 3263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:43:50,159 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