./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:37:36,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:37:36,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:37:36,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:37:36,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:37:36,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:37:36,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:37:36,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:37:36,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:37:36,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:37:36,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:37:36,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:37:36,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:37:36,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:37:36,826 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:37:36,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:37:36,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:37:36,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:37:36,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:37:36,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:37:36,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:37:36,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:37:36,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:37:36,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:37:36,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:37:36,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:37:36,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:37:36,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:37:36,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:37:36,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:37:36,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:37:36,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:37:36,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:37:36,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:37:36,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:37:36,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:37:36,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:37:36,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:37:36,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:37:36,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:37:36,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:37:36,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:37:36,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-22 13:37:37,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:37:37,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:37:37,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:37:37,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:37:37,057 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:37:37,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-22 13:37:38,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:37:38,563 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:37:38,563 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-22 13:37:38,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5647d03ec/93acb682705a4fe388504e72432976d4/FLAG80673e38a [2024-11-22 13:37:38,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5647d03ec/93acb682705a4fe388504e72432976d4 [2024-11-22 13:37:38,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:37:38,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:37:38,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:37:38,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:37:38,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:37:38,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:38" (1/1) ... [2024-11-22 13:37:38,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5e5cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:38, skipping insertion in model container [2024-11-22 13:37:38,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:38" (1/1) ... [2024-11-22 13:37:38,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:37:39,269 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-11-22 13:37:39,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:37:39,316 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:37:39,358 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-11-22 13:37:39,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:37:39,425 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:37:39,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39 WrapperNode [2024-11-22 13:37:39,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:37:39,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:37:39,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:37:39,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:37:39,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,481 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 127 [2024-11-22 13:37:39,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:37:39,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:37:39,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:37:39,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:37:39,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,519 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-11-22 13:37:39,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:37:39,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:37:39,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:37:39,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:37:39,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (1/1) ... [2024-11-22 13:37:39,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:37:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:37:39,588 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) [2024-11-22 13:37:39,590 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 [2024-11-22 13:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-22 13:37:39,629 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-22 13:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 13:37:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 13:37:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 13:37:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:37:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:37:39,633 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 13:37:39,825 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:37:39,826 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:37:40,010 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 13:37:40,011 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:37:40,153 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:37:40,154 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 13:37:40,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:40 BoogieIcfgContainer [2024-11-22 13:37:40,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:37:40,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:37:40,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:37:40,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:37:40,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:37:38" (1/3) ... [2024-11-22 13:37:40,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df86ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:40, skipping insertion in model container [2024-11-22 13:37:40,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:39" (2/3) ... [2024-11-22 13:37:40,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df86ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:40, skipping insertion in model container [2024-11-22 13:37:40,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:40" (3/3) ... [2024-11-22 13:37:40,163 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-11-22 13:37:40,175 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:37:40,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-22 13:37:40,176 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 13:37:40,213 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 13:37:40,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-11-22 13:37:40,270 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-11-22 13:37:40,271 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 13:37:40,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-11-22 13:37:40,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-11-22 13:37:40,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-11-22 13:37:40,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:37:40,288 INFO L333 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, 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;@39662b21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:37:40,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-22 13:37:40,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 13:37:40,291 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-11-22 13:37:40,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:37:40,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:40,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 13:37:40,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:40,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:40,296 INFO L85 PathProgramCache]: Analyzing trace with hash 13064660, now seen corresponding path program 1 times [2024-11-22 13:37:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:40,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009321413] [2024-11-22 13:37:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:37:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:40,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:40,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009321413] [2024-11-22 13:37:40,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009321413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:40,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:40,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:37:40,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035514101] [2024-11-22 13:37:40,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:40,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:37:40,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:40,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:37:40,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:37:40,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:40,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-22 13:37:40,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:40,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:40,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:40,971 INFO L124 PetriNetUnfolderBase]: 466/823 cut-off events. [2024-11-22 13:37:40,971 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-22 13:37:40,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 823 events. 466/823 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3428 event pairs, 345 based on Foata normal form. 3/822 useless extension candidates. Maximal degree in co-relation 1538. Up to 602 conditions per place. [2024-11-22 13:37:40,979 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-11-22 13:37:40,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-11-22 13:37:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:37:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:37:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-22 13:37:40,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-22 13:37:40,992 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2024-11-22 13:37:40,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2024-11-22 13:37:40,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 13:37:41,000 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2024-11-22 13:37:41,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-11-22 13:37:41,005 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2024-11-22 13:37:41,005 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2024-11-22 13:37:41,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-22 13:37:41,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:41,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 13:37:41,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 13:37:41,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:41,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:41,008 INFO L85 PathProgramCache]: Analyzing trace with hash -329692165, now seen corresponding path program 1 times [2024-11-22 13:37:41,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:41,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364864508] [2024-11-22 13:37:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:37:41,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:41,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:41,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364864508] [2024-11-22 13:37:41,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364864508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:41,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:41,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:37:41,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132656064] [2024-11-22 13:37:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:41,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:37:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:37:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:37:41,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:41,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-22 13:37:41,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:41,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:41,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:41,366 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-11-22 13:37:41,366 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-22 13:37:41,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 821 events. 466/821 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3457 event pairs, 155 based on Foata normal form. 1/821 useless extension candidates. Maximal degree in co-relation 818. Up to 553 conditions per place. [2024-11-22 13:37:41,373 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-11-22 13:37:41,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 265 flow [2024-11-22 13:37:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:37:41,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:37:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-11-22 13:37:41,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-11-22 13:37:41,377 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2024-11-22 13:37:41,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 265 flow [2024-11-22 13:37:41,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:37:41,383 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 126 flow [2024-11-22 13:37:41,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-22 13:37:41,385 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-11-22 13:37:41,385 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 126 flow [2024-11-22 13:37:41,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-22 13:37:41,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:41,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:41,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 13:37:41,386 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:41,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:41,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2019603849, now seen corresponding path program 1 times [2024-11-22 13:37:41,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:41,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120039236] [2024-11-22 13:37:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:37:41,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:41,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:41,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:41,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120039236] [2024-11-22 13:37:41,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120039236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:41,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:41,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:37:41,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106652709] [2024-11-22 13:37:41,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:41,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:37:41,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:41,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:37:41,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:37:41,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:41,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-22 13:37:41,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:41,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:41,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:41,853 INFO L124 PetriNetUnfolderBase]: 562/1026 cut-off events. [2024-11-22 13:37:41,853 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-11-22 13:37:41,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1026 events. 562/1026 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4860 event pairs, 252 based on Foata normal form. 64/1089 useless extension candidates. Maximal degree in co-relation 274. Up to 545 conditions per place. [2024-11-22 13:37:41,858 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 49 selfloop transitions, 10 changer transitions 4/67 dead transitions. [2024-11-22 13:37:41,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 306 flow [2024-11-22 13:37:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:37:41,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 13:37:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-11-22 13:37:41,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-11-22 13:37:41,861 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 126 flow. Second operand 4 states and 102 transitions. [2024-11-22 13:37:41,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 306 flow [2024-11-22 13:37:41,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 13:37:41,863 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 150 flow [2024-11-22 13:37:41,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-11-22 13:37:41,865 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-11-22 13:37:41,865 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 150 flow [2024-11-22 13:37:41,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-22 13:37:41,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:41,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:41,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 13:37:41,866 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:41,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:41,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1257070099, now seen corresponding path program 1 times [2024-11-22 13:37:41,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:41,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335315270] [2024-11-22 13:37:41,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:37:41,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:41,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:41,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335315270] [2024-11-22 13:37:41,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335315270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:41,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:41,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:37:41,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634562339] [2024-11-22 13:37:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:41,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:37:41,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:41,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:37:41,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:37:41,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-11-22 13:37:41,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-11-22 13:37:41,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:41,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-11-22 13:37:41,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:42,056 INFO L124 PetriNetUnfolderBase]: 225/408 cut-off events. [2024-11-22 13:37:42,057 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-11-22 13:37:42,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 408 events. 225/408 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1450 event pairs, 46 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 927. Up to 217 conditions per place. [2024-11-22 13:37:42,059 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 48 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-11-22 13:37:42,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 278 flow [2024-11-22 13:37:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:37:42,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 13:37:42,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-11-22 13:37:42,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-11-22 13:37:42,060 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 150 flow. Second operand 4 states and 131 transitions. [2024-11-22 13:37:42,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 278 flow [2024-11-22 13:37:42,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 248 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-22 13:37:42,062 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-11-22 13:37:42,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-22 13:37:42,063 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -12 predicate places. [2024-11-22 13:37:42,063 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-11-22 13:37:42,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2024-11-22 13:37:42,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:42,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:42,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:37:42,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:42,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:42,064 INFO L85 PathProgramCache]: Analyzing trace with hash -660184073, now seen corresponding path program 1 times [2024-11-22 13:37:42,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:42,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223455688] [2024-11-22 13:37:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:37:42,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:42,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:42,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223455688] [2024-11-22 13:37:42,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223455688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:42,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:42,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:37:42,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187533173] [2024-11-22 13:37:42,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:42,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:37:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:37:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:37:42,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-22 13:37:42,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-22 13:37:42,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:42,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-22 13:37:42,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:42,566 INFO L124 PetriNetUnfolderBase]: 251/458 cut-off events. [2024-11-22 13:37:42,567 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-22 13:37:42,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 458 events. 251/458 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1775 event pairs, 35 based on Foata normal form. 8/465 useless extension candidates. Maximal degree in co-relation 219. Up to 271 conditions per place. [2024-11-22 13:37:42,571 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 56 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-11-22 13:37:42,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 332 flow [2024-11-22 13:37:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:37:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:37:42,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-11-22 13:37:42,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-11-22 13:37:42,574 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 5 states and 164 transitions. [2024-11-22 13:37:42,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 69 transitions, 332 flow [2024-11-22 13:37:42,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:37:42,576 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 126 flow [2024-11-22 13:37:42,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-11-22 13:37:42,577 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2024-11-22 13:37:42,577 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 126 flow [2024-11-22 13:37:42,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-22 13:37:42,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:42,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:42,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:37:42,578 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:42,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:42,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1426301679, now seen corresponding path program 2 times [2024-11-22 13:37:42,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:42,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129303881] [2024-11-22 13:37:42,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:37:42,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:42,635 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:37:42,635 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:42,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:42,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129303881] [2024-11-22 13:37:42,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129303881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:42,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:42,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:37:42,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195887453] [2024-11-22 13:37:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:42,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:37:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:42,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:37:42,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:37:42,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-22 13:37:42,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-22 13:37:42,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:42,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-22 13:37:42,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:43,192 INFO L124 PetriNetUnfolderBase]: 281/516 cut-off events. [2024-11-22 13:37:43,193 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-11-22 13:37:43,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 516 events. 281/516 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2048 event pairs, 37 based on Foata normal form. 8/523 useless extension candidates. Maximal degree in co-relation 354. Up to 307 conditions per place. [2024-11-22 13:37:43,200 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 58 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-11-22 13:37:43,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 378 flow [2024-11-22 13:37:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:37:43,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:37:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-11-22 13:37:43,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-11-22 13:37:43,201 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 126 flow. Second operand 5 states and 164 transitions. [2024-11-22 13:37:43,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 378 flow [2024-11-22 13:37:43,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 73 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:37:43,203 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 172 flow [2024-11-22 13:37:43,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-11-22 13:37:43,204 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-11-22 13:37:43,204 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 172 flow [2024-11-22 13:37:43,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-22 13:37:43,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:43,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:43,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:37:43,205 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:43,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash -368074777, now seen corresponding path program 3 times [2024-11-22 13:37:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:43,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798658888] [2024-11-22 13:37:43,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 13:37:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:43,244 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 13:37:43,244 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:43,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:43,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798658888] [2024-11-22 13:37:43,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798658888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:43,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:43,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:37:43,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217586210] [2024-11-22 13:37:43,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:43,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:37:43,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:37:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:37:43,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:43,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-11-22 13:37:43,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:43,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:43,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:43,930 INFO L124 PetriNetUnfolderBase]: 324/607 cut-off events. [2024-11-22 13:37:43,930 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2024-11-22 13:37:43,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 607 events. 324/607 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2452 event pairs, 38 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 696. Up to 171 conditions per place. [2024-11-22 13:37:43,934 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 82 selfloop transitions, 23 changer transitions 0/107 dead transitions. [2024-11-22 13:37:43,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 682 flow [2024-11-22 13:37:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 13:37:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 13:37:43,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2024-11-22 13:37:43,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2791666666666667 [2024-11-22 13:37:43,935 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 172 flow. Second operand 12 states and 201 transitions. [2024-11-22 13:37:43,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 682 flow [2024-11-22 13:37:43,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 674 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 13:37:43,939 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 288 flow [2024-11-22 13:37:43,939 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=288, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-11-22 13:37:43,939 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-11-22 13:37:43,939 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 288 flow [2024-11-22 13:37:43,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-11-22 13:37:43,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:43,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:43,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:37:43,940 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:43,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:43,940 INFO L85 PathProgramCache]: Analyzing trace with hash -786765451, now seen corresponding path program 4 times [2024-11-22 13:37:43,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:43,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949779227] [2024-11-22 13:37:43,941 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 13:37:43,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:43,971 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 13:37:43,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:44,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:44,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949779227] [2024-11-22 13:37:44,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949779227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:44,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:44,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:37:44,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229468475] [2024-11-22 13:37:44,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:44,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:37:44,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:44,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:37:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:37:44,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-22 13:37:44,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-22 13:37:44,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:44,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-22 13:37:44,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:44,349 INFO L124 PetriNetUnfolderBase]: 437/848 cut-off events. [2024-11-22 13:37:44,349 INFO L125 PetriNetUnfolderBase]: For 1437/1437 co-relation queries the response was YES. [2024-11-22 13:37:44,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 848 events. 437/848 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4078 event pairs, 115 based on Foata normal form. 16/864 useless extension candidates. Maximal degree in co-relation 2881. Up to 515 conditions per place. [2024-11-22 13:37:44,354 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 87 selfloop transitions, 10 changer transitions 0/105 dead transitions. [2024-11-22 13:37:44,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 105 transitions, 750 flow [2024-11-22 13:37:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:37:44,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:37:44,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-11-22 13:37:44,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5766666666666667 [2024-11-22 13:37:44,356 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 288 flow. Second operand 5 states and 173 transitions. [2024-11-22 13:37:44,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 105 transitions, 750 flow [2024-11-22 13:37:44,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 105 transitions, 725 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-22 13:37:44,361 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 370 flow [2024-11-22 13:37:44,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=370, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-11-22 13:37:44,362 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-11-22 13:37:44,362 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 370 flow [2024-11-22 13:37:44,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2024-11-22 13:37:44,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:44,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:44,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:37:44,363 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:44,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1783290199, now seen corresponding path program 5 times [2024-11-22 13:37:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:44,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961455522] [2024-11-22 13:37:44,364 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 13:37:44,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:44,389 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:37:44,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:44,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:44,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961455522] [2024-11-22 13:37:44,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961455522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:44,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:44,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:37:44,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25341231] [2024-11-22 13:37:44,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:44,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:37:44,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:37:44,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:37:44,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:44,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-11-22 13:37:44,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:44,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:44,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:44,974 INFO L124 PetriNetUnfolderBase]: 437/844 cut-off events. [2024-11-22 13:37:44,975 INFO L125 PetriNetUnfolderBase]: For 2287/2287 co-relation queries the response was YES. [2024-11-22 13:37:44,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 844 events. 437/844 cut-off events. For 2287/2287 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4009 event pairs, 45 based on Foata normal form. 2/846 useless extension candidates. Maximal degree in co-relation 3139. Up to 246 conditions per place. [2024-11-22 13:37:44,980 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 93 selfloop transitions, 27 changer transitions 0/121 dead transitions. [2024-11-22 13:37:44,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 121 transitions, 1017 flow [2024-11-22 13:37:44,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 13:37:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 13:37:44,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2024-11-22 13:37:44,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28055555555555556 [2024-11-22 13:37:44,982 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 370 flow. Second operand 12 states and 202 transitions. [2024-11-22 13:37:44,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 121 transitions, 1017 flow [2024-11-22 13:37:44,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 995 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-22 13:37:44,988 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 465 flow [2024-11-22 13:37:44,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=465, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2024-11-22 13:37:44,989 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 23 predicate places. [2024-11-22 13:37:44,989 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 465 flow [2024-11-22 13:37:44,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-11-22 13:37:44,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:44,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:44,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 13:37:44,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:44,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:44,990 INFO L85 PathProgramCache]: Analyzing trace with hash -170966216, now seen corresponding path program 1 times [2024-11-22 13:37:44,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:44,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471138277] [2024-11-22 13:37:44,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:37:44,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:45,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:45,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471138277] [2024-11-22 13:37:45,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471138277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:45,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:45,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:37:45,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206170365] [2024-11-22 13:37:45,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:45,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:37:45,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:45,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:37:45,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:37:45,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:45,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 465 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2024-11-22 13:37:45,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:45,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:45,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:46,039 INFO L124 PetriNetUnfolderBase]: 437/842 cut-off events. [2024-11-22 13:37:46,039 INFO L125 PetriNetUnfolderBase]: For 2801/2801 co-relation queries the response was YES. [2024-11-22 13:37:46,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 842 events. 437/842 cut-off events. For 2801/2801 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3923 event pairs, 82 based on Foata normal form. 1/843 useless extension candidates. Maximal degree in co-relation 2470. Up to 368 conditions per place. [2024-11-22 13:37:46,043 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 72 selfloop transitions, 32 changer transitions 27/132 dead transitions. [2024-11-22 13:37:46,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 132 transitions, 1200 flow [2024-11-22 13:37:46,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:37:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 13:37:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 232 transitions. [2024-11-22 13:37:46,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2761904761904762 [2024-11-22 13:37:46,045 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 465 flow. Second operand 14 states and 232 transitions. [2024-11-22 13:37:46,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 132 transitions, 1200 flow [2024-11-22 13:37:46,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 1148 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-22 13:37:46,068 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 685 flow [2024-11-22 13:37:46,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=685, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-11-22 13:37:46,069 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 35 predicate places. [2024-11-22 13:37:46,069 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 685 flow [2024-11-22 13:37:46,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2024-11-22 13:37:46,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:46,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:46,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 13:37:46,071 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:46,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -343838380, now seen corresponding path program 2 times [2024-11-22 13:37:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:46,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722416188] [2024-11-22 13:37:46,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:37:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:46,100 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:37:46,100 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:46,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:46,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722416188] [2024-11-22 13:37:46,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722416188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:46,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:46,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:37:46,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687196701] [2024-11-22 13:37:46,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:46,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:37:46,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:46,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:37:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:37:46,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:46,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 685 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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) [2024-11-22 13:37:46,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:46,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:46,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:47,059 INFO L124 PetriNetUnfolderBase]: 377/746 cut-off events. [2024-11-22 13:37:47,059 INFO L125 PetriNetUnfolderBase]: For 2817/2817 co-relation queries the response was YES. [2024-11-22 13:37:47,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 746 events. 377/746 cut-off events. For 2817/2817 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3387 event pairs, 66 based on Foata normal form. 1/747 useless extension candidates. Maximal degree in co-relation 3094. Up to 410 conditions per place. [2024-11-22 13:37:47,064 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 68 selfloop transitions, 28 changer transitions 32/129 dead transitions. [2024-11-22 13:37:47,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 1242 flow [2024-11-22 13:37:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 13:37:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-22 13:37:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 217 transitions. [2024-11-22 13:37:47,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2782051282051282 [2024-11-22 13:37:47,066 INFO L175 Difference]: Start difference. First operand has 88 places, 78 transitions, 685 flow. Second operand 13 states and 217 transitions. [2024-11-22 13:37:47,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 1242 flow [2024-11-22 13:37:47,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 1135 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-11-22 13:37:47,077 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 637 flow [2024-11-22 13:37:47,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=637, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-22 13:37:47,077 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 38 predicate places. [2024-11-22 13:37:47,078 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 637 flow [2024-11-22 13:37:47,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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) [2024-11-22 13:37:47,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:47,078 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:47,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 13:37:47,079 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:47,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:47,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1234976944, now seen corresponding path program 3 times [2024-11-22 13:37:47,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:47,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121552951] [2024-11-22 13:37:47,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 13:37:47,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:47,110 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 13:37:47,111 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:47,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:47,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121552951] [2024-11-22 13:37:47,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121552951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:47,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:47,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:37:47,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163729108] [2024-11-22 13:37:47,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:47,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:37:47,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:47,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:37:47,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:37:47,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:47,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 637 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2024-11-22 13:37:47,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:47,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:47,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:48,010 INFO L124 PetriNetUnfolderBase]: 295/584 cut-off events. [2024-11-22 13:37:48,011 INFO L125 PetriNetUnfolderBase]: For 2029/2029 co-relation queries the response was YES. [2024-11-22 13:37:48,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 584 events. 295/584 cut-off events. For 2029/2029 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2426 event pairs, 58 based on Foata normal form. 1/585 useless extension candidates. Maximal degree in co-relation 2387. Up to 301 conditions per place. [2024-11-22 13:37:48,014 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 58 selfloop transitions, 26 changer transitions 27/112 dead transitions. [2024-11-22 13:37:48,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 112 transitions, 1053 flow [2024-11-22 13:37:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:37:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 13:37:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 228 transitions. [2024-11-22 13:37:48,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2714285714285714 [2024-11-22 13:37:48,015 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 637 flow. Second operand 14 states and 228 transitions. [2024-11-22 13:37:48,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 112 transitions, 1053 flow [2024-11-22 13:37:48,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 112 transitions, 994 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-11-22 13:37:48,020 INFO L231 Difference]: Finished difference. Result has 93 places, 67 transitions, 579 flow [2024-11-22 13:37:48,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=579, PETRI_PLACES=93, PETRI_TRANSITIONS=67} [2024-11-22 13:37:48,020 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 40 predicate places. [2024-11-22 13:37:48,021 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 67 transitions, 579 flow [2024-11-22 13:37:48,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2024-11-22 13:37:48,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:48,021 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:48,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 13:37:48,021 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:48,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:48,022 INFO L85 PathProgramCache]: Analyzing trace with hash 302187456, now seen corresponding path program 4 times [2024-11-22 13:37:48,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:48,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796982352] [2024-11-22 13:37:48,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 13:37:48,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:48,043 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 13:37:48,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:48,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:48,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796982352] [2024-11-22 13:37:48,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796982352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:48,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:48,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:37:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251573477] [2024-11-22 13:37:48,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:48,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:37:48,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:48,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:37:48,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:37:48,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:48,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 67 transitions, 579 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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) [2024-11-22 13:37:48,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:48,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:48,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:48,919 INFO L124 PetriNetUnfolderBase]: 228/449 cut-off events. [2024-11-22 13:37:48,919 INFO L125 PetriNetUnfolderBase]: For 1654/1654 co-relation queries the response was YES. [2024-11-22 13:37:48,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 449 events. 228/449 cut-off events. For 1654/1654 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1691 event pairs, 36 based on Foata normal form. 1/450 useless extension candidates. Maximal degree in co-relation 1899. Up to 237 conditions per place. [2024-11-22 13:37:48,921 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 45 selfloop transitions, 16 changer transitions 36/98 dead transitions. [2024-11-22 13:37:48,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 98 transitions, 920 flow [2024-11-22 13:37:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:37:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 13:37:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 220 transitions. [2024-11-22 13:37:48,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2619047619047619 [2024-11-22 13:37:48,922 INFO L175 Difference]: Start difference. First operand has 93 places, 67 transitions, 579 flow. Second operand 14 states and 220 transitions. [2024-11-22 13:37:48,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 98 transitions, 920 flow [2024-11-22 13:37:48,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 98 transitions, 804 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-22 13:37:48,926 INFO L231 Difference]: Finished difference. Result has 87 places, 53 transitions, 371 flow [2024-11-22 13:37:48,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=371, PETRI_PLACES=87, PETRI_TRANSITIONS=53} [2024-11-22 13:37:48,927 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 34 predicate places. [2024-11-22 13:37:48,927 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 53 transitions, 371 flow [2024-11-22 13:37:48,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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) [2024-11-22 13:37:48,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:48,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:48,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 13:37:48,928 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:48,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:48,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1301090480, now seen corresponding path program 5 times [2024-11-22 13:37:48,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:48,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206242062] [2024-11-22 13:37:48,928 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 13:37:48,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:48,948 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:37:48,948 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:49,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:49,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206242062] [2024-11-22 13:37:49,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206242062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:49,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:49,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:37:49,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765338260] [2024-11-22 13:37:49,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:49,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:37:49,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:49,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:37:49,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:37:49,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-22 13:37:49,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 53 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2024-11-22 13:37:49,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:49,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-22 13:37:49,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:49,248 INFO L124 PetriNetUnfolderBase]: 97/204 cut-off events. [2024-11-22 13:37:49,248 INFO L125 PetriNetUnfolderBase]: For 769/769 co-relation queries the response was YES. [2024-11-22 13:37:49,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 834 conditions, 204 events. 97/204 cut-off events. For 769/769 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 593 event pairs, 21 based on Foata normal form. 12/216 useless extension candidates. Maximal degree in co-relation 816. Up to 96 conditions per place. [2024-11-22 13:37:49,250 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 45 selfloop transitions, 14 changer transitions 0/64 dead transitions. [2024-11-22 13:37:49,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 64 transitions, 533 flow [2024-11-22 13:37:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:37:49,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:37:49,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-22 13:37:49,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-11-22 13:37:49,251 INFO L175 Difference]: Start difference. First operand has 87 places, 53 transitions, 371 flow. Second operand 5 states and 154 transitions. [2024-11-22 13:37:49,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 64 transitions, 533 flow [2024-11-22 13:37:49,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 421 flow, removed 16 selfloop flow, removed 18 redundant places. [2024-11-22 13:37:49,254 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 311 flow [2024-11-22 13:37:49,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2024-11-22 13:37:49,255 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2024-11-22 13:37:49,255 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 311 flow [2024-11-22 13:37:49,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2024-11-22 13:37:49,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:49,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:49,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 13:37:49,255 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:49,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:49,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1511940784, now seen corresponding path program 6 times [2024-11-22 13:37:49,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:49,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177624351] [2024-11-22 13:37:49,256 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 13:37:49,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:49,287 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 13:37:49,291 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:37:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:49,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:49,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177624351] [2024-11-22 13:37:49,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177624351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:49,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:49,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:37:49,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326836020] [2024-11-22 13:37:49,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:49,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:37:49,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:37:49,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:37:49,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:49,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 311 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2024-11-22 13:37:49,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:49,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:49,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:50,107 INFO L124 PetriNetUnfolderBase]: 144/303 cut-off events. [2024-11-22 13:37:50,109 INFO L125 PetriNetUnfolderBase]: For 783/783 co-relation queries the response was YES. [2024-11-22 13:37:50,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 303 events. 144/303 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1002 event pairs, 26 based on Foata normal form. 1/304 useless extension candidates. Maximal degree in co-relation 616. Up to 134 conditions per place. [2024-11-22 13:37:50,111 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 35 selfloop transitions, 11 changer transitions 34/81 dead transitions. [2024-11-22 13:37:50,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 81 transitions, 595 flow [2024-11-22 13:37:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:37:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 13:37:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 210 transitions. [2024-11-22 13:37:50,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25 [2024-11-22 13:37:50,113 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 311 flow. Second operand 14 states and 210 transitions. [2024-11-22 13:37:50,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 81 transitions, 595 flow [2024-11-22 13:37:50,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 81 transitions, 554 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-22 13:37:50,116 INFO L231 Difference]: Finished difference. Result has 75 places, 42 transitions, 229 flow [2024-11-22 13:37:50,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=229, PETRI_PLACES=75, PETRI_TRANSITIONS=42} [2024-11-22 13:37:50,117 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2024-11-22 13:37:50,117 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 42 transitions, 229 flow [2024-11-22 13:37:50,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2024-11-22 13:37:50,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:37:50,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:37:50,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 13:37:50,117 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-22 13:37:50,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:37:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash 50014096, now seen corresponding path program 7 times [2024-11-22 13:37:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:37:50,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928121457] [2024-11-22 13:37:50,118 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 13:37:50,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:37:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:37:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:37:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:37:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928121457] [2024-11-22 13:37:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928121457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:37:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:37:50,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:37:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875579191] [2024-11-22 13:37:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:37:50,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:37:50,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:37:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:37:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:37:50,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-22 13:37:50,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 42 transitions, 229 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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) [2024-11-22 13:37:50,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:37:50,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-22 13:37:50,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:37:50,877 INFO L124 PetriNetUnfolderBase]: 74/159 cut-off events. [2024-11-22 13:37:50,877 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2024-11-22 13:37:50,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 159 events. 74/159 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 364 event pairs, 0 based on Foata normal form. 1/160 useless extension candidates. Maximal degree in co-relation 537. Up to 62 conditions per place. [2024-11-22 13:37:50,878 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-11-22 13:37:50,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 51 transitions, 353 flow [2024-11-22 13:37:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 13:37:50,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 13:37:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 168 transitions. [2024-11-22 13:37:50,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23333333333333334 [2024-11-22 13:37:50,879 INFO L175 Difference]: Start difference. First operand has 75 places, 42 transitions, 229 flow. Second operand 12 states and 168 transitions. [2024-11-22 13:37:50,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 51 transitions, 353 flow [2024-11-22 13:37:50,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 51 transitions, 303 flow, removed 7 selfloop flow, removed 13 redundant places. [2024-11-22 13:37:50,881 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2024-11-22 13:37:50,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2024-11-22 13:37:50,881 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-11-22 13:37:50,881 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2024-11-22 13:37:50,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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) [2024-11-22 13:37:50,886 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-11-22 13:37:50,888 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-22 13:37:50,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-22 13:37:50,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-22 13:37:50,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-22 13:37:50,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-22 13:37:50,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-22 13:37:50,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-22 13:37:50,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 13:37:50,890 INFO L407 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1] [2024-11-22 13:37:50,894 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 13:37:50,894 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 13:37:50,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:37:50 BasicIcfg [2024-11-22 13:37:50,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 13:37:50,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 13:37:50,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 13:37:50,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 13:37:50,899 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:40" (3/4) ... [2024-11-22 13:37:50,901 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 13:37:50,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-11-22 13:37:50,908 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2024-11-22 13:37:50,909 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-22 13:37:50,909 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-22 13:37:50,909 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 13:37:50,986 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 13:37:50,986 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 13:37:50,986 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 13:37:50,987 INFO L158 Benchmark]: Toolchain (without parser) took 12081.99ms. Allocated memory was 180.4MB in the beginning and 570.4MB in the end (delta: 390.1MB). Free memory was 127.3MB in the beginning and 523.0MB in the end (delta: -395.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 13:37:50,987 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 180.4MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 13:37:50,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.71ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 88.8MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-22 13:37:50,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.63ms. Allocated memory is still 180.4MB. Free memory was 88.8MB in the beginning and 86.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 13:37:50,987 INFO L158 Benchmark]: Boogie Preprocessor took 71.05ms. Allocated memory is still 180.4MB. Free memory was 86.1MB in the beginning and 82.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 13:37:50,988 INFO L158 Benchmark]: RCFGBuilder took 598.63ms. Allocated memory is still 180.4MB. Free memory was 82.5MB in the beginning and 136.9MB in the end (delta: -54.3MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-11-22 13:37:50,988 INFO L158 Benchmark]: TraceAbstraction took 10742.35ms. Allocated memory was 180.4MB in the beginning and 570.4MB in the end (delta: 390.1MB). Free memory was 136.7MB in the beginning and 529.3MB in the end (delta: -392.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 13:37:50,988 INFO L158 Benchmark]: Witness Printer took 87.67ms. Allocated memory is still 570.4MB. Free memory was 529.3MB in the beginning and 523.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 13:37:50,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 180.4MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.71ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 88.8MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.63ms. Allocated memory is still 180.4MB. Free memory was 88.8MB in the beginning and 86.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.05ms. Allocated memory is still 180.4MB. Free memory was 86.1MB in the beginning and 82.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 598.63ms. Allocated memory is still 180.4MB. Free memory was 82.5MB in the beginning and 136.9MB in the end (delta: -54.3MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10742.35ms. Allocated memory was 180.4MB in the beginning and 570.4MB in the end (delta: 390.1MB). Free memory was 136.7MB in the beginning and 529.3MB in the end (delta: -392.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 87.67ms. Allocated memory is still 570.4MB. Free memory was 529.3MB in the beginning and 523.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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 4 procedures, 60 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: 10.7s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1104 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1017 mSDsluCounter, 1006 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 977 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3820 IncrementalHoareTripleChecker+Invalid, 3983 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 29 mSDtfsCounter, 3820 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=10, InterpolantAutomatonStates: 141, 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, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 3551 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 13:37:51,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE