./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/weaver/popl20-simple-queue.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:14:39,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:14:40,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:14:40,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:14:40,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:14:40,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:14:40,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:14:40,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:14:40,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:14:40,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:14:40,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:14:40,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:14:40,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:14:40,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:14:40,088 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:14:40,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:14:40,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:14:40,091 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:14:40,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:14:40,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:14:40,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:14:40,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:14:40,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:14:40,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:14:40,093 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:14:40,093 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:14:40,094 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:14:40,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:14:40,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:14:40,094 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:14:40,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:14:40,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:14:40,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:14:40,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:14:40,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:14:40,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:14:40,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:14:40,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:14:40,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:14:40,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:14:40,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:14:40,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:14:40,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:14:40,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:14:40,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3 [2024-11-09 15:14:40,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:14:40,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:14:40,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:14:40,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:14:40,397 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:14:40,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2024-11-09 15:14:41,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:14:42,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:14:42,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2024-11-09 15:14:42,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efeef6305/365f82ee62fd4c12a046c2b84fff5635/FLAGecadc49c6 [2024-11-09 15:14:42,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efeef6305/365f82ee62fd4c12a046c2b84fff5635 [2024-11-09 15:14:42,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:14:42,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:14:42,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:14:42,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:14:42,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:14:42,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387b6ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42, skipping insertion in model container [2024-11-09 15:14:42,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:14:42,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:14:42,303 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:14:42,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:14:42,341 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:14:42,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42 WrapperNode [2024-11-09 15:14:42,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:14:42,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:14:42,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:14:42,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:14:42,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,378 INFO L138 Inliner]: procedures = 23, calls = 24, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 133 [2024-11-09 15:14:42,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:14:42,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:14:42,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:14:42,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:14:42,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,409 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-09 15:14:42,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:14:42,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:14:42,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:14:42,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:14:42,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (1/1) ... [2024-11-09 15:14:42,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:14:42,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:14:42,459 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) [2024-11-09 15:14:42,462 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 [2024-11-09 15:14:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:14:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:14:42,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:14:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:14:42,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:14:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:14:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:14:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:14:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:14:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 15:14:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 15:14:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:14:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:14:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:14:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:14:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:14:42,507 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:14:42,598 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:14:42,600 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:14:42,858 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:14:42,858 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:14:43,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:14:43,057 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:14:43,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:14:43 BoogieIcfgContainer [2024-11-09 15:14:43,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:14:43,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:14:43,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:14:43,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:14:43,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:14:42" (1/3) ... [2024-11-09 15:14:43,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cb73e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:14:43, skipping insertion in model container [2024-11-09 15:14:43,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:42" (2/3) ... [2024-11-09 15:14:43,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cb73e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:14:43, skipping insertion in model container [2024-11-09 15:14:43,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:14:43" (3/3) ... [2024-11-09 15:14:43,070 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2024-11-09 15:14:43,087 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:14:43,087 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 15:14:43,088 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:14:43,144 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:14:43,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 82 flow [2024-11-09 15:14:43,208 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2024-11-09 15:14:43,208 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:14:43,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 5/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-11-09 15:14:43,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 34 transitions, 82 flow [2024-11-09 15:14:43,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 30 transitions, 69 flow [2024-11-09 15:14:43,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:14:43,264 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;@4eb56c16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:14:43,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 15:14:43,284 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:14:43,284 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:14:43,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:14:43,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:14:43,285 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:14:43,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 15:14:43,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:14:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash 410261, now seen corresponding path program 1 times [2024-11-09 15:14:43,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:14:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454812276] [2024-11-09 15:14:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:43,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:14:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:43,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:14:43,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454812276] [2024-11-09 15:14:43,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454812276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:14:43,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:14:43,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:14:43,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573326094] [2024-11-09 15:14:43,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:14:43,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:14:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:14:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:14:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:14:43,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 34 [2024-11-09 15:14:43,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-09 15:14:43,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:14:43,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 34 [2024-11-09 15:14:43,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:14:43,794 INFO L124 PetriNetUnfolderBase]: 165/293 cut-off events. [2024-11-09 15:14:43,795 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-09 15:14:43,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 293 events. 165/293 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1086 event pairs, 132 based on Foata normal form. 1/226 useless extension candidates. Maximal degree in co-relation 545. Up to 287 conditions per place. [2024-11-09 15:14:43,802 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 22 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2024-11-09 15:14:43,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 119 flow [2024-11-09 15:14:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:14:43,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:14:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2024-11-09 15:14:43,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38235294117647056 [2024-11-09 15:14:43,817 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 69 flow. Second operand 4 states and 52 transitions. [2024-11-09 15:14:43,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 119 flow [2024-11-09 15:14:43,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:14:43,823 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 85 flow [2024-11-09 15:14:43,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2024-11-09 15:14:43,830 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2024-11-09 15:14:43,830 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 85 flow [2024-11-09 15:14:43,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-09 15:14:43,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:14:43,831 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:14:43,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:14:43,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 15:14:43,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:14:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash -662433084, now seen corresponding path program 1 times [2024-11-09 15:14:43,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:14:43,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336435856] [2024-11-09 15:14:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:14:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:44,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:14:44,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336435856] [2024-11-09 15:14:44,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336435856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:14:44,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043673098] [2024-11-09 15:14:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:44,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:44,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:14:44,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:14:44,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:14:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:44,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:14:44,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:14:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:44,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:14:44,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043673098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:14:44,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:14:44,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:14:44,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033766501] [2024-11-09 15:14:44,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:14:44,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:14:44,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:14:44,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:14:44,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:14:44,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 34 [2024-11-09 15:14:44,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:14:44,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:14:44,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 34 [2024-11-09 15:14:44,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:14:44,285 INFO L124 PetriNetUnfolderBase]: 165/292 cut-off events. [2024-11-09 15:14:44,285 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 15:14:44,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 292 events. 165/292 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1077 event pairs, 132 based on Foata normal form. 1/226 useless extension candidates. Maximal degree in co-relation 583. Up to 282 conditions per place. [2024-11-09 15:14:44,288 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 18 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2024-11-09 15:14:44,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 28 transitions, 131 flow [2024-11-09 15:14:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:14:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:14:44,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2024-11-09 15:14:44,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27450980392156865 [2024-11-09 15:14:44,291 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 85 flow. Second operand 6 states and 56 transitions. [2024-11-09 15:14:44,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 28 transitions, 131 flow [2024-11-09 15:14:44,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:14:44,292 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 92 flow [2024-11-09 15:14:44,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-09 15:14:44,293 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2024-11-09 15:14:44,293 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 92 flow [2024-11-09 15:14:44,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:14:44,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:14:44,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:14:44,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:14:44,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:44,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 15:14:44,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:14:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash 993006643, now seen corresponding path program 1 times [2024-11-09 15:14:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:14:44,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691407743] [2024-11-09 15:14:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:14:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:44,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:14:44,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691407743] [2024-11-09 15:14:44,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691407743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:14:44,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:14:44,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:14:44,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099309545] [2024-11-09 15:14:44,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:14:44,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:14:44,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:14:44,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:14:44,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:14:44,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-09 15:14:44,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-09 15:14:44,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:14:44,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-09 15:14:44,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:14:44,758 INFO L124 PetriNetUnfolderBase]: 232/428 cut-off events. [2024-11-09 15:14:44,758 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-09 15:14:44,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 428 events. 232/428 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1745 event pairs, 200 based on Foata normal form. 23/362 useless extension candidates. Maximal degree in co-relation 585. Up to 284 conditions per place. [2024-11-09 15:14:44,762 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 21 selfloop transitions, 2 changer transitions 14/41 dead transitions. [2024-11-09 15:14:44,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 196 flow [2024-11-09 15:14:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:14:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:14:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-11-09 15:14:44,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5073529411764706 [2024-11-09 15:14:44,764 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 92 flow. Second operand 4 states and 69 transitions. [2024-11-09 15:14:44,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 196 flow [2024-11-09 15:14:44,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 174 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 15:14:44,766 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 80 flow [2024-11-09 15:14:44,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2024-11-09 15:14:44,770 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2024-11-09 15:14:44,770 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 80 flow [2024-11-09 15:14:44,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-09 15:14:44,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:14:44,771 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:14:44,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:14:44,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 15:14:44,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:14:44,772 INFO L85 PathProgramCache]: Analyzing trace with hash 939411262, now seen corresponding path program 1 times [2024-11-09 15:14:44,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:14:44,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844397321] [2024-11-09 15:14:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:44,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:14:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:14:44,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844397321] [2024-11-09 15:14:44,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844397321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:14:44,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110314693] [2024-11-09 15:14:44,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:44,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:44,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:14:44,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:14:44,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:14:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:44,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:14:44,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:14:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:45,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:14:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:45,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110314693] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:14:45,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:14:45,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 15:14:45,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914378309] [2024-11-09 15:14:45,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:14:45,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:14:45,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:14:45,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:14:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:14:45,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 34 [2024-11-09 15:14:45,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 80 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-11-09 15:14:45,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:14:45,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 34 [2024-11-09 15:14:45,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:14:45,237 INFO L124 PetriNetUnfolderBase]: 167/303 cut-off events. [2024-11-09 15:14:45,237 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-09 15:14:45,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 303 events. 167/303 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1124 event pairs, 132 based on Foata normal form. 3/237 useless extension candidates. Maximal degree in co-relation 677. Up to 288 conditions per place. [2024-11-09 15:14:45,242 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 21 selfloop transitions, 12 changer transitions 0/36 dead transitions. [2024-11-09 15:14:45,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 176 flow [2024-11-09 15:14:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:14:45,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:14:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 86 transitions. [2024-11-09 15:14:45,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2529411764705882 [2024-11-09 15:14:45,244 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 80 flow. Second operand 10 states and 86 transitions. [2024-11-09 15:14:45,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 176 flow [2024-11-09 15:14:45,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:14:45,246 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 148 flow [2024-11-09 15:14:45,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=148, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-11-09 15:14:45,249 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2024-11-09 15:14:45,250 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 148 flow [2024-11-09 15:14:45,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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) [2024-11-09 15:14:45,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:14:45,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:14:45,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:14:45,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 15:14:45,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 15:14:45,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:14:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash 47985890, now seen corresponding path program 1 times [2024-11-09 15:14:45,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:14:45,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378747626] [2024-11-09 15:14:45,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:45,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:14:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:45,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:14:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378747626] [2024-11-09 15:14:45,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378747626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:14:45,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475900121] [2024-11-09 15:14:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:45,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:45,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:14:45,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:14:45,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:14:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:45,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:14:45,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:14:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:14:45,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:14:45,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475900121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:14:45,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:14:45,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-09 15:14:45,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967269375] [2024-11-09 15:14:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:14:45,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:14:45,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:14:45,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:14:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:14:45,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-09 15:14:45,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-09 15:14:45,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:14:45,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-09 15:14:45,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:14:45,726 INFO L124 PetriNetUnfolderBase]: 125/232 cut-off events. [2024-11-09 15:14:45,727 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-09 15:14:45,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 232 events. 125/232 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 796 event pairs, 94 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 500. Up to 223 conditions per place. [2024-11-09 15:14:45,728 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 10 selfloop transitions, 1 changer transitions 21/34 dead transitions. [2024-11-09 15:14:45,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 200 flow [2024-11-09 15:14:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:14:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:14:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-09 15:14:45,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4117647058823529 [2024-11-09 15:14:45,730 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 148 flow. Second operand 3 states and 42 transitions. [2024-11-09 15:14:45,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 200 flow [2024-11-09 15:14:45,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 190 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-09 15:14:45,732 INFO L231 Difference]: Finished difference. Result has 41 places, 13 transitions, 74 flow [2024-11-09 15:14:45,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=41, PETRI_TRANSITIONS=13} [2024-11-09 15:14:45,733 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2024-11-09 15:14:45,735 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 13 transitions, 74 flow [2024-11-09 15:14:45,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-09 15:14:45,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:14:45,735 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 15:14:45,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:14:45,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:45,936 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-09 15:14:45,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:14:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1590720077, now seen corresponding path program 2 times [2024-11-09 15:14:45,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:14:45,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124753340] [2024-11-09 15:14:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:14:45,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:14:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:14:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:14:46,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:14:46,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124753340] [2024-11-09 15:14:46,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124753340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:14:46,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620061955] [2024-11-09 15:14:46,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:14:46,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:46,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:14:46,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:14:46,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:14:46,175 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:14:46,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:14:46,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:14:46,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:14:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:14:46,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:14:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:14:46,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620061955] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:14:46,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:14:46,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-09 15:14:46,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052357422] [2024-11-09 15:14:46,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:14:46,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:14:46,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:14:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:14:46,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:14:46,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 34 [2024-11-09 15:14:46,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 13 transitions, 74 flow. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2024-11-09 15:14:46,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:14:46,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 34 [2024-11-09 15:14:46,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:14:46,426 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2024-11-09 15:14:46,426 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-09 15:14:46,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 19 events. 1/19 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/21 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2024-11-09 15:14:46,426 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-11-09 15:14:46,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 14 transitions, 102 flow [2024-11-09 15:14:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:14:46,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:14:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 85 transitions. [2024-11-09 15:14:46,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.17857142857142858 [2024-11-09 15:14:46,429 INFO L175 Difference]: Start difference. First operand has 41 places, 13 transitions, 74 flow. Second operand 14 states and 85 transitions. [2024-11-09 15:14:46,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 14 transitions, 102 flow [2024-11-09 15:14:46,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 14 transitions, 89 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 15:14:46,431 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-11-09 15:14:46,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-11-09 15:14:46,432 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2024-11-09 15:14:46,432 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-11-09 15:14:46,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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) [2024-11-09 15:14:46,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-09 15:14:46,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-09 15:14:46,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-09 15:14:46,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-09 15:14:46,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-09 15:14:46,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-09 15:14:46,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-09 15:14:46,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-11-09 15:14:46,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-09 15:14:46,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-09 15:14:46,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-09 15:14:46,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-09 15:14:46,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 15:14:46,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:14:46,637 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-09 15:14:46,642 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:14:46,642 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:14:46,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:14:46 BasicIcfg [2024-11-09 15:14:46,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:14:46,647 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:14:46,647 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:14:46,647 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:14:46,648 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:14:43" (3/4) ... [2024-11-09 15:14:46,652 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:14:46,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:14:46,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:14:46,659 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2024-11-09 15:14:46,661 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 15:14:46,662 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 15:14:46,662 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:14:46,758 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:14:46,760 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:14:46,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:14:46,761 INFO L158 Benchmark]: Toolchain (without parser) took 4673.33ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 134.4MB in the beginning and 157.1MB in the end (delta: -22.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-09 15:14:46,762 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 167.8MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:14:46,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.86ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 121.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 15:14:46,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.43ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:14:46,762 INFO L158 Benchmark]: Boogie Preprocessor took 40.96ms. Allocated memory is still 167.8MB. Free memory was 119.3MB in the beginning and 117.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:14:46,763 INFO L158 Benchmark]: RCFGBuilder took 635.10ms. Allocated memory is still 167.8MB. Free memory was 117.2MB in the beginning and 78.9MB in the end (delta: 38.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 15:14:46,763 INFO L158 Benchmark]: TraceAbstraction took 3586.11ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 78.4MB in the beginning and 162.4MB in the end (delta: -84.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:14:46,763 INFO L158 Benchmark]: Witness Printer took 113.42ms. Allocated memory is still 218.1MB. Free memory was 162.4MB in the beginning and 157.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 15:14:46,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 167.8MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.86ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 121.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.43ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.96ms. Allocated memory is still 167.8MB. Free memory was 119.3MB in the beginning and 117.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 635.10ms. Allocated memory is still 167.8MB. Free memory was 117.2MB in the beginning and 78.9MB in the end (delta: 38.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3586.11ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 78.4MB in the beginning and 162.4MB in the end (delta: -84.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 113.42ms. Allocated memory is still 218.1MB. Free memory was 162.4MB in the beginning and 157.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 48 locations, 12 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: 3.5s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 8 mSDtfsCounter, 414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 88 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 9 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 47/105 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! [2024-11-09 15:14:46,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE