./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --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/goblint-regression/09-regions_17-arrayloop_nr.i -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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:03:27,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:03:27,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:03:27,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:03:27,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:03:27,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:03:27,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:03:27,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:03:27,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:03:27,133 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:03:27,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:03:27,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:03:27,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:03:27,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:03:27,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:03:27,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:03:27,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:03:27,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:03:27,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:03:27,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:03:27,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:03:27,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:03:27,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:03:27,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:03:27,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:03:27,137 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:03:27,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:03:27,137 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:03:27,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:03:27,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:03:27,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:03:27,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:03:27,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:03:27,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:03:27,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:03:27,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:03:27,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:03:27,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:03:27,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:03:27,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:03:27,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:03:27,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:03:27,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:03:27,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:03:27,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-09 15:03:27,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:03:27,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:03:27,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:03:27,355 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:03:27,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:03:27,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-09 15:03:28,645 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:03:28,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:03:28,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-09 15:03:28,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2305625a3/86dc5bca6dcc4df394731fb14fc8aa13/FLAG39ca93b75 [2024-11-09 15:03:28,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2305625a3/86dc5bca6dcc4df394731fb14fc8aa13 [2024-11-09 15:03:28,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:03:28,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:03:28,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:03:28,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:03:28,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:03:28,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:03:28" (1/1) ... [2024-11-09 15:03:28,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c40a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:28, skipping insertion in model container [2024-11-09 15:03:28,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:03:28" (1/1) ... [2024-11-09 15:03:28,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:03:29,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:03:29,367 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:03:29,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:03:29,508 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:03:29,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29 WrapperNode [2024-11-09 15:03:29,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:03:29,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:03:29,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:03:29,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:03:29,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,554 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 188 [2024-11-09 15:03:29,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:03:29,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:03:29,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:03:29,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:03:29,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,583 INFO L175 MemorySlicer]: Split 78 memory accesses to 3 slices as follows [50, 14, 14]. 64 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 11 writes are split as follows [0, 1, 10]. [2024-11-09 15:03:29,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:03:29,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:03:29,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:03:29,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:03:29,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (1/1) ... [2024-11-09 15:03:29,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:03:29,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:29,635 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 15:03:29,636 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 15:03:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 15:03:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 15:03:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 15:03:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 15:03:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:03:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 15:03:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 15:03:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 15:03:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:03:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:03:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:03:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:03:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:03:29,672 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 15:03:29,833 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:03:29,834 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:03:30,149 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:03:30,149 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:03:30,427 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:03:30,428 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:03:30,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:30 BoogieIcfgContainer [2024-11-09 15:03:30,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:03:30,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:03:30,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:03:30,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:03:30,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:03:28" (1/3) ... [2024-11-09 15:03:30,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbcc9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:03:30, skipping insertion in model container [2024-11-09 15:03:30,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:29" (2/3) ... [2024-11-09 15:03:30,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbcc9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:03:30, skipping insertion in model container [2024-11-09 15:03:30,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:30" (3/3) ... [2024-11-09 15:03:30,436 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-09 15:03:30,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:03:30,449 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-09 15:03:30,449 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:03:30,486 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 15:03:30,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 35 transitions, 74 flow [2024-11-09 15:03:30,537 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-11-09 15:03:30,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:30,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 3/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-11-09 15:03:30,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 35 transitions, 74 flow [2024-11-09 15:03:30,543 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 34 transitions, 71 flow [2024-11-09 15:03:30,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:03:30,557 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;@3e856b9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:03:30,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:03:30,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:03:30,562 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:03:30,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:30,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:30,562 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:03:30,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:30,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash 491269, now seen corresponding path program 1 times [2024-11-09 15:03:30,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131351212] [2024-11-09 15:03:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:30,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:30,896 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 15:03:30,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:30,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131351212] [2024-11-09 15:03:30,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131351212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:30,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:30,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499472150] [2024-11-09 15:03:30,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:30,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:30,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:30,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-09 15:03:30,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 15:03:30,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:30,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-09 15:03:30,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:31,117 INFO L124 PetriNetUnfolderBase]: 86/246 cut-off events. [2024-11-09 15:03:31,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:31,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 246 events. 86/246 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 997 event pairs, 36 based on Foata normal form. 8/233 useless extension candidates. Maximal degree in co-relation 403. Up to 106 conditions per place. [2024-11-09 15:03:31,122 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 30 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2024-11-09 15:03:31,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 169 flow [2024-11-09 15:03:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-09 15:03:31,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-09 15:03:31,139 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 4 states and 95 transitions. [2024-11-09 15:03:31,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 169 flow [2024-11-09 15:03:31,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:31,143 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 106 flow [2024-11-09 15:03:31,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2024-11-09 15:03:31,147 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-09 15:03:31,147 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 106 flow [2024-11-09 15:03:31,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 15:03:31,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:31,148 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:03:31,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:03:31,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:31,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:31,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1750983199, now seen corresponding path program 1 times [2024-11-09 15:03:31,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:31,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024080417] [2024-11-09 15:03:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:31,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:31,308 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 15:03:31,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:31,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024080417] [2024-11-09 15:03:31,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024080417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:31,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195781676] [2024-11-09 15:03:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:31,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:31,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:31,311 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 15:03:31,313 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 15:03:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:31,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:03:31,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:31,477 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 15:03:31,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:31,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195781676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:31,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:31,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:03:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701860412] [2024-11-09 15:03:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:31,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:31,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-09 15:03:31,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 15:03:31,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:31,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-09 15:03:31,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:31,655 INFO L124 PetriNetUnfolderBase]: 86/242 cut-off events. [2024-11-09 15:03:31,655 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-09 15:03:31,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 242 events. 86/242 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 961 event pairs, 0 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 446. Up to 92 conditions per place. [2024-11-09 15:03:31,658 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 34 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-11-09 15:03:31,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 220 flow [2024-11-09 15:03:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:03:31,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:03:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-09 15:03:31,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-09 15:03:31,660 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 106 flow. Second operand 6 states and 126 transitions. [2024-11-09 15:03:31,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 220 flow [2024-11-09 15:03:31,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:31,662 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 112 flow [2024-11-09 15:03:31,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-11-09 15:03:31,663 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-09 15:03:31,664 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 112 flow [2024-11-09 15:03:31,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 15:03:31,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:31,664 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:03:31,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:03:31,868 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 15:03:31,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:31,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:31,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1554095185, now seen corresponding path program 1 times [2024-11-09 15:03:31,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:31,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423114140] [2024-11-09 15:03:31,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:03:31,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:31,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423114140] [2024-11-09 15:03:31,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423114140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:31,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:31,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896498182] [2024-11-09 15:03:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:31,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:31,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-09 15:03:31,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 15:03:31,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:31,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-09 15:03:31,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:31,990 INFO L124 PetriNetUnfolderBase]: 86/254 cut-off events. [2024-11-09 15:03:31,990 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-09 15:03:31,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 254 events. 86/254 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1056 event pairs, 66 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 467. Up to 174 conditions per place. [2024-11-09 15:03:31,992 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2024-11-09 15:03:31,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 152 flow [2024-11-09 15:03:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-09 15:03:31,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-11-09 15:03:31,993 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 112 flow. Second operand 3 states and 62 transitions. [2024-11-09 15:03:31,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 35 transitions, 152 flow [2024-11-09 15:03:31,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 140 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:31,996 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 104 flow [2024-11-09 15:03:31,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2024-11-09 15:03:31,997 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-09 15:03:31,997 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 104 flow [2024-11-09 15:03:31,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 15:03:31,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:31,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:31,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:03:31,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:31,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:31,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1237104365, now seen corresponding path program 1 times [2024-11-09 15:03:31,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:31,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804642887] [2024-11-09 15:03:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,068 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 15:03:32,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:32,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804642887] [2024-11-09 15:03:32,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804642887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:32,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476509414] [2024-11-09 15:03:32,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:32,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:32,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:32,070 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 15:03:32,071 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 15:03:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:03:32,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:32,185 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 15:03:32,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:32,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476509414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:32,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:32,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-09 15:03:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576117798] [2024-11-09 15:03:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:32,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:32,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:32,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:32,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:03:32,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-09 15:03:32,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:32,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-09 15:03:32,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:32,289 INFO L124 PetriNetUnfolderBase]: 194/520 cut-off events. [2024-11-09 15:03:32,290 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-09 15:03:32,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 520 events. 194/520 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2564 event pairs, 66 based on Foata normal form. 12/471 useless extension candidates. Maximal degree in co-relation 934. Up to 192 conditions per place. [2024-11-09 15:03:32,293 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 35 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-09 15:03:32,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 221 flow [2024-11-09 15:03:32,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-11-09 15:03:32,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2024-11-09 15:03:32,294 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 104 flow. Second operand 3 states and 78 transitions. [2024-11-09 15:03:32,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 221 flow [2024-11-09 15:03:32,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:32,296 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 126 flow [2024-11-09 15:03:32,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-11-09 15:03:32,296 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-09 15:03:32,296 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 126 flow [2024-11-09 15:03:32,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:32,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:32,312 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 15:03:32,501 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 15:03:32,502 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:32,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 304470855, now seen corresponding path program 1 times [2024-11-09 15:03:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:32,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762035379] [2024-11-09 15:03:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,568 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 15:03:32,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:32,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762035379] [2024-11-09 15:03:32,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762035379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:32,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372354243] [2024-11-09 15:03:32,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:32,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:32,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:32,571 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 15:03:32,573 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 15:03:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 15:03:32,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:32,692 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 15:03:32,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:32,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372354243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:32,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:32,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-09 15:03:32,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673127622] [2024-11-09 15:03:32,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:32,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:32,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:32,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:32,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:03:32,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-09 15:03:32,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:32,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-09 15:03:32,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:32,804 INFO L124 PetriNetUnfolderBase]: 170/496 cut-off events. [2024-11-09 15:03:32,804 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2024-11-09 15:03:32,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 496 events. 170/496 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2567 event pairs, 77 based on Foata normal form. 24/482 useless extension candidates. Maximal degree in co-relation 999. Up to 200 conditions per place. [2024-11-09 15:03:32,807 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 34 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-09 15:03:32,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 225 flow [2024-11-09 15:03:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-09 15:03:32,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-09 15:03:32,808 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 126 flow. Second operand 3 states and 77 transitions. [2024-11-09 15:03:32,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 225 flow [2024-11-09 15:03:32,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:32,810 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 116 flow [2024-11-09 15:03:32,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=110, 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=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-09 15:03:32,811 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-09 15:03:32,811 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 116 flow [2024-11-09 15:03:32,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:32,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:32,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:03:33,017 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 15:03:33,018 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1301425, now seen corresponding path program 1 times [2024-11-09 15:03:33,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:33,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915169318] [2024-11-09 15:03:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:33,085 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 15:03:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:33,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915169318] [2024-11-09 15:03:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915169318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:33,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690346411] [2024-11-09 15:03:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:33,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:33,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:33,088 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 15:03:33,089 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 15:03:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:33,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:03:33,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:33,217 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 15:03:33,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:33,239 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 15:03:33,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690346411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:33,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:33,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:03:33,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619090432] [2024-11-09 15:03:33,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:33,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:03:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:33,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:03:33,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:03:33,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-09 15:03:33,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 116 flow. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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 15:03:33,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:33,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-09 15:03:33,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:33,452 INFO L124 PetriNetUnfolderBase]: 170/446 cut-off events. [2024-11-09 15:03:33,452 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-11-09 15:03:33,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 446 events. 170/446 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2110 event pairs, 22 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 907. Up to 145 conditions per place. [2024-11-09 15:03:33,454 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 37 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2024-11-09 15:03:33,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 294 flow [2024-11-09 15:03:33,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:03:33,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:03:33,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-11-09 15:03:33,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563265306122449 [2024-11-09 15:03:33,455 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 116 flow. Second operand 7 states and 138 transitions. [2024-11-09 15:03:33,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 294 flow [2024-11-09 15:03:33,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:03:33,460 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 178 flow [2024-11-09 15:03:33,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-11-09 15:03:33,461 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-09 15:03:33,461 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 178 flow [2024-11-09 15:03:33,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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 15:03:33,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:33,461 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:33,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:03:33,662 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 15:03:33,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:33,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:33,662 INFO L85 PathProgramCache]: Analyzing trace with hash 237870449, now seen corresponding path program 2 times [2024-11-09 15:03:33,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:33,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100019374] [2024-11-09 15:03:33,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:33,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 15:03:33,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:33,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100019374] [2024-11-09 15:03:33,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100019374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:33,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:33,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503535216] [2024-11-09 15:03:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:33,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:33,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-09 15:03:33,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:33,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:33,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-09 15:03:33,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:33,869 INFO L124 PetriNetUnfolderBase]: 170/425 cut-off events. [2024-11-09 15:03:33,869 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2024-11-09 15:03:33,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 425 events. 170/425 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1937 event pairs, 88 based on Foata normal form. 24/440 useless extension candidates. Maximal degree in co-relation 973. Up to 225 conditions per place. [2024-11-09 15:03:33,871 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 43 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-11-09 15:03:33,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 60 transitions, 338 flow [2024-11-09 15:03:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2024-11-09 15:03:33,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-09 15:03:33,872 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 178 flow. Second operand 4 states and 100 transitions. [2024-11-09 15:03:33,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 60 transitions, 338 flow [2024-11-09 15:03:33,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 326 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:33,875 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 190 flow [2024-11-09 15:03:33,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-11-09 15:03:33,875 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2024-11-09 15:03:33,875 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 190 flow [2024-11-09 15:03:33,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:33,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:33,876 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:33,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:03:33,876 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:33,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash -769618986, now seen corresponding path program 1 times [2024-11-09 15:03:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:33,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063185932] [2024-11-09 15:03:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:33,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 15:03:33,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:33,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063185932] [2024-11-09 15:03:33,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063185932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:33,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:33,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:33,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026010661] [2024-11-09 15:03:33,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:33,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:33,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:33,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:33,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:33,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-09 15:03:33,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 15:03:33,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:33,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-09 15:03:33,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:34,092 INFO L124 PetriNetUnfolderBase]: 194/493 cut-off events. [2024-11-09 15:03:34,092 INFO L125 PetriNetUnfolderBase]: For 581/581 co-relation queries the response was YES. [2024-11-09 15:03:34,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 493 events. 194/493 cut-off events. For 581/581 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2334 event pairs, 112 based on Foata normal form. 24/506 useless extension candidates. Maximal degree in co-relation 1230. Up to 275 conditions per place. [2024-11-09 15:03:34,094 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 50 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2024-11-09 15:03:34,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 63 transitions, 394 flow [2024-11-09 15:03:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-09 15:03:34,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-09 15:03:34,095 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 190 flow. Second operand 4 states and 92 transitions. [2024-11-09 15:03:34,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 63 transitions, 394 flow [2024-11-09 15:03:34,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 63 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:34,097 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 204 flow [2024-11-09 15:03:34,098 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2024-11-09 15:03:34,098 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2024-11-09 15:03:34,098 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 204 flow [2024-11-09 15:03:34,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 15:03:34,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:34,098 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:34,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:03:34,099 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:34,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1036310670, now seen corresponding path program 1 times [2024-11-09 15:03:34,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:34,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691141204] [2024-11-09 15:03:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:34,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 15:03:34,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:34,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691141204] [2024-11-09 15:03:34,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691141204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:34,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046823273] [2024-11-09 15:03:34,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:34,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:34,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:34,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:34,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:03:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:34,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:03:34,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:03:34,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:03:34,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046823273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:34,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:34,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 19 [2024-11-09 15:03:34,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826455078] [2024-11-09 15:03:34,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:34,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:03:34,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:34,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:03:34,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-09 15:03:34,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 35 [2024-11-09 15:03:34,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 204 flow. Second operand has 19 states, 19 states have (on average 10.947368421052632) internal successors, (208), 19 states have internal predecessors, (208), 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 15:03:34,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:34,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 35 [2024-11-09 15:03:34,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:35,219 INFO L124 PetriNetUnfolderBase]: 352/839 cut-off events. [2024-11-09 15:03:35,219 INFO L125 PetriNetUnfolderBase]: For 1079/1079 co-relation queries the response was YES. [2024-11-09 15:03:35,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 839 events. 352/839 cut-off events. For 1079/1079 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4051 event pairs, 16 based on Foata normal form. 18/854 useless extension candidates. Maximal degree in co-relation 2203. Up to 120 conditions per place. [2024-11-09 15:03:35,223 INFO L140 encePairwiseOnDemand]: 22/35 looper letters, 100 selfloop transitions, 49 changer transitions 0/157 dead transitions. [2024-11-09 15:03:35,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 157 transitions, 985 flow [2024-11-09 15:03:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 15:03:35,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-09 15:03:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 372 transitions. [2024-11-09 15:03:35,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-11-09 15:03:35,225 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 204 flow. Second operand 24 states and 372 transitions. [2024-11-09 15:03:35,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 157 transitions, 985 flow [2024-11-09 15:03:35,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 157 transitions, 952 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:35,228 INFO L231 Difference]: Finished difference. Result has 86 places, 77 transitions, 606 flow [2024-11-09 15:03:35,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=606, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2024-11-09 15:03:35,229 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2024-11-09 15:03:35,229 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 77 transitions, 606 flow [2024-11-09 15:03:35,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.947368421052632) internal successors, (208), 19 states have internal predecessors, (208), 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 15:03:35,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:35,229 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:35,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:03:35,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:35,430 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:35,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1487707354, now seen corresponding path program 1 times [2024-11-09 15:03:35,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:35,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027442418] [2024-11-09 15:03:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:35,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:35,826 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 15:03:35,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:35,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027442418] [2024-11-09 15:03:35,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027442418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:35,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103274303] [2024-11-09 15:03:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:35,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:35,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:35,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:35,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:03:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:36,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:03:36,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 15:03:36,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 15:03:36,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103274303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:36,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:36,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-09 15:03:36,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285689003] [2024-11-09 15:03:36,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:36,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:03:36,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:36,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:03:36,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 15:03:36,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-09 15:03:36,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 77 transitions, 606 flow. Second operand has 23 states, 23 states have (on average 14.434782608695652) internal successors, (332), 23 states have internal predecessors, (332), 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 15:03:36,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:36,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-09 15:03:36,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:36,591 INFO L124 PetriNetUnfolderBase]: 258/687 cut-off events. [2024-11-09 15:03:36,591 INFO L125 PetriNetUnfolderBase]: For 1787/1790 co-relation queries the response was YES. [2024-11-09 15:03:36,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2153 conditions, 687 events. 258/687 cut-off events. For 1787/1790 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3185 event pairs, 76 based on Foata normal form. 5/685 useless extension candidates. Maximal degree in co-relation 1963. Up to 211 conditions per place. [2024-11-09 15:03:36,594 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 46 selfloop transitions, 37 changer transitions 0/98 dead transitions. [2024-11-09 15:03:36,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 914 flow [2024-11-09 15:03:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 15:03:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 15:03:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 335 transitions. [2024-11-09 15:03:36,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4557823129251701 [2024-11-09 15:03:36,596 INFO L175 Difference]: Start difference. First operand has 86 places, 77 transitions, 606 flow. Second operand 21 states and 335 transitions. [2024-11-09 15:03:36,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 914 flow [2024-11-09 15:03:36,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 876 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-09 15:03:36,603 INFO L231 Difference]: Finished difference. Result has 103 places, 83 transitions, 743 flow [2024-11-09 15:03:36,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=743, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2024-11-09 15:03:36,603 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 68 predicate places. [2024-11-09 15:03:36,603 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 743 flow [2024-11-09 15:03:36,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.434782608695652) internal successors, (332), 23 states have internal predecessors, (332), 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 15:03:36,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:36,604 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:36,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:03:36,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:36,804 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:36,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:36,805 INFO L85 PathProgramCache]: Analyzing trace with hash 104823692, now seen corresponding path program 2 times [2024-11-09 15:03:36,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:36,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340212240] [2024-11-09 15:03:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:36,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:36,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:36,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340212240] [2024-11-09 15:03:36,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340212240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:36,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451280791] [2024-11-09 15:03:36,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:03:36,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:36,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:36,995 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:37,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:03:37,248 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:03:37,248 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:03:37,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:03:37,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:37,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:37,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451280791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:37,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:37,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 15:03:37,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338013579] [2024-11-09 15:03:37,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:37,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:03:37,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:37,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:03:37,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:37,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-09 15:03:37,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 743 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 15:03:37,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:37,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-09 15:03:37,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:37,421 INFO L124 PetriNetUnfolderBase]: 281/691 cut-off events. [2024-11-09 15:03:37,422 INFO L125 PetriNetUnfolderBase]: For 1813/1819 co-relation queries the response was YES. [2024-11-09 15:03:37,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 691 events. 281/691 cut-off events. For 1813/1819 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3147 event pairs, 90 based on Foata normal form. 23/702 useless extension candidates. Maximal degree in co-relation 2000. Up to 325 conditions per place. [2024-11-09 15:03:37,425 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 76 selfloop transitions, 14 changer transitions 2/109 dead transitions. [2024-11-09 15:03:37,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 1092 flow [2024-11-09 15:03:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-09 15:03:37,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-09 15:03:37,426 INFO L175 Difference]: Start difference. First operand has 103 places, 83 transitions, 743 flow. Second operand 4 states and 90 transitions. [2024-11-09 15:03:37,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 1092 flow [2024-11-09 15:03:37,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 109 transitions, 1019 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-09 15:03:37,432 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 694 flow [2024-11-09 15:03:37,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=694, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2024-11-09 15:03:37,433 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 57 predicate places. [2024-11-09 15:03:37,433 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 694 flow [2024-11-09 15:03:37,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 15:03:37,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:37,434 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:37,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:03:37,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:37,634 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:37,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:37,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1045432377, now seen corresponding path program 1 times [2024-11-09 15:03:37,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:37,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204956666] [2024-11-09 15:03:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 15:03:37,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:37,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204956666] [2024-11-09 15:03:37,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204956666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:37,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:37,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:37,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859646407] [2024-11-09 15:03:37,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:37,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:37,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:37,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:37,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:37,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-09 15:03:37,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 694 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 15:03:37,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:37,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-09 15:03:37,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:37,918 INFO L124 PetriNetUnfolderBase]: 258/653 cut-off events. [2024-11-09 15:03:37,919 INFO L125 PetriNetUnfolderBase]: For 2124/2127 co-relation queries the response was YES. [2024-11-09 15:03:37,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 653 events. 258/653 cut-off events. For 2124/2127 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2919 event pairs, 65 based on Foata normal form. 19/662 useless extension candidates. Maximal degree in co-relation 1966. Up to 327 conditions per place. [2024-11-09 15:03:37,922 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 43 selfloop transitions, 39 changer transitions 8/103 dead transitions. [2024-11-09 15:03:37,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 103 transitions, 1002 flow [2024-11-09 15:03:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:37,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-09 15:03:37,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-09 15:03:37,923 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 694 flow. Second operand 4 states and 89 transitions. [2024-11-09 15:03:37,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 103 transitions, 1002 flow [2024-11-09 15:03:37,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 103 transitions, 973 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:37,929 INFO L231 Difference]: Finished difference. Result has 91 places, 77 transitions, 709 flow [2024-11-09 15:03:37,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=709, PETRI_PLACES=91, PETRI_TRANSITIONS=77} [2024-11-09 15:03:37,929 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 56 predicate places. [2024-11-09 15:03:37,930 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 77 transitions, 709 flow [2024-11-09 15:03:37,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 15:03:37,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:37,930 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:37,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 15:03:37,930 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:37,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:37,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2099756282, now seen corresponding path program 1 times [2024-11-09 15:03:37,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:37,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494568233] [2024-11-09 15:03:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:37,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 15:03:38,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:38,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494568233] [2024-11-09 15:03:38,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494568233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:38,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:38,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:38,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128091876] [2024-11-09 15:03:38,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:38,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:38,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:38,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:38,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:38,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-09 15:03:38,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 77 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 15:03:38,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:38,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-09 15:03:38,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:38,157 INFO L124 PetriNetUnfolderBase]: 246/676 cut-off events. [2024-11-09 15:03:38,157 INFO L125 PetriNetUnfolderBase]: For 2308/2310 co-relation queries the response was YES. [2024-11-09 15:03:38,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 676 events. 246/676 cut-off events. For 2308/2310 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3051 event pairs, 98 based on Foata normal form. 26/697 useless extension candidates. Maximal degree in co-relation 1937. Up to 410 conditions per place. [2024-11-09 15:03:38,162 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 63 selfloop transitions, 11 changer transitions 0/86 dead transitions. [2024-11-09 15:03:38,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 86 transitions, 933 flow [2024-11-09 15:03:38,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:38,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-09 15:03:38,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-09 15:03:38,163 INFO L175 Difference]: Start difference. First operand has 91 places, 77 transitions, 709 flow. Second operand 3 states and 68 transitions. [2024-11-09 15:03:38,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 86 transitions, 933 flow [2024-11-09 15:03:38,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 86 transitions, 807 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-09 15:03:38,168 INFO L231 Difference]: Finished difference. Result has 87 places, 74 transitions, 611 flow [2024-11-09 15:03:38,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=87, PETRI_TRANSITIONS=74} [2024-11-09 15:03:38,169 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2024-11-09 15:03:38,169 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 74 transitions, 611 flow [2024-11-09 15:03:38,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 15:03:38,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:38,169 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:38,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:03:38,170 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:38,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:38,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1935194633, now seen corresponding path program 1 times [2024-11-09 15:03:38,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:38,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027977199] [2024-11-09 15:03:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:38,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:38,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:38,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027977199] [2024-11-09 15:03:38,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027977199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:38,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015018529] [2024-11-09 15:03:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:38,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:38,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:38,336 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:38,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:03:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:38,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:03:38,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:38,663 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:38,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:38,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015018529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:38,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:38,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:03:38,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324472230] [2024-11-09 15:03:38,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:38,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:38,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:38,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:38,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:38,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-09 15:03:38,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 74 transitions, 611 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 15:03:38,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:38,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-09 15:03:38,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:38,860 INFO L124 PetriNetUnfolderBase]: 222/616 cut-off events. [2024-11-09 15:03:38,861 INFO L125 PetriNetUnfolderBase]: For 1743/1747 co-relation queries the response was YES. [2024-11-09 15:03:38,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 616 events. 222/616 cut-off events. For 1743/1747 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2573 event pairs, 12 based on Foata normal form. 40/655 useless extension candidates. Maximal degree in co-relation 1677. Up to 206 conditions per place. [2024-11-09 15:03:38,864 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 82 selfloop transitions, 14 changer transitions 0/108 dead transitions. [2024-11-09 15:03:38,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 108 transitions, 966 flow [2024-11-09 15:03:38,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:03:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:03:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-09 15:03:38,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-09 15:03:38,865 INFO L175 Difference]: Start difference. First operand has 87 places, 74 transitions, 611 flow. Second operand 6 states and 126 transitions. [2024-11-09 15:03:38,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 108 transitions, 966 flow [2024-11-09 15:03:38,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 108 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:38,869 INFO L231 Difference]: Finished difference. Result has 88 places, 72 transitions, 607 flow [2024-11-09 15:03:38,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=607, PETRI_PLACES=88, PETRI_TRANSITIONS=72} [2024-11-09 15:03:38,870 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 53 predicate places. [2024-11-09 15:03:38,870 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 72 transitions, 607 flow [2024-11-09 15:03:38,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 15:03:38,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:38,870 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:38,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:03:39,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 15:03:39,071 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:03:39,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash 138509033, now seen corresponding path program 1 times [2024-11-09 15:03:39,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:39,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231801067] [2024-11-09 15:03:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:39,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 15:03:39,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:39,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231801067] [2024-11-09 15:03:39,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231801067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:39,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:39,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:39,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692468838] [2024-11-09 15:03:39,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:39,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:39,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:39,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-09 15:03:39,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 72 transitions, 607 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 15:03:39,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:39,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-09 15:03:39,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:39,306 INFO L124 PetriNetUnfolderBase]: 234/615 cut-off events. [2024-11-09 15:03:39,307 INFO L125 PetriNetUnfolderBase]: For 1677/1678 co-relation queries the response was YES. [2024-11-09 15:03:39,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 615 events. 234/615 cut-off events. For 1677/1678 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2558 event pairs, 39 based on Foata normal form. 25/637 useless extension candidates. Maximal degree in co-relation 1736. Up to 313 conditions per place. [2024-11-09 15:03:39,308 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2024-11-09 15:03:39,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 939 flow [2024-11-09 15:03:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-09 15:03:39,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-11-09 15:03:39,309 INFO L175 Difference]: Start difference. First operand has 88 places, 72 transitions, 607 flow. Second operand 4 states and 79 transitions. [2024-11-09 15:03:39,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 939 flow [2024-11-09 15:03:39,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 95 transitions, 902 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-09 15:03:39,313 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2024-11-09 15:03:39,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2024-11-09 15:03:39,341 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2024-11-09 15:03:39,341 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2024-11-09 15:03:39,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 15:03:39,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-09 15:03:39,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-09 15:03:39,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-09 15:03:39,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-09 15:03:39,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-09 15:03:39,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-09 15:03:39,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-09 15:03:39,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 15:03:39,346 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:39,349 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:03:39,350 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:03:39,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:03:39 BasicIcfg [2024-11-09 15:03:39,354 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:03:39,354 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:03:39,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:03:39,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:03:39,355 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:30" (3/4) ... [2024-11-09 15:03:39,356 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:03:39,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-09 15:03:39,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 99 nodes and edges [2024-11-09 15:03:39,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 15:03:39,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 15:03:39,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 15:03:39,427 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:03:39,428 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:03:39,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:03:39,428 INFO L158 Benchmark]: Toolchain (without parser) took 10532.69ms. Allocated memory was 151.0MB in the beginning and 369.1MB in the end (delta: 218.1MB). Free memory was 92.1MB in the beginning and 312.4MB in the end (delta: -220.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:03:39,428 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 151.0MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:03:39,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.89ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 91.7MB in the beginning and 151.4MB in the end (delta: -59.7MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2024-11-09 15:03:39,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.80ms. Allocated memory is still 201.3MB. Free memory was 151.4MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:39,429 INFO L158 Benchmark]: Boogie Preprocessor took 53.19ms. Allocated memory is still 201.3MB. Free memory was 148.2MB in the beginning and 144.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:39,429 INFO L158 Benchmark]: RCFGBuilder took 818.96ms. Allocated memory is still 201.3MB. Free memory was 144.0MB in the beginning and 145.3MB in the end (delta: -1.3MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2024-11-09 15:03:39,429 INFO L158 Benchmark]: TraceAbstraction took 8922.96ms. Allocated memory was 201.3MB in the beginning and 369.1MB in the end (delta: 167.8MB). Free memory was 145.3MB in the beginning and 317.7MB in the end (delta: -172.3MB). Peak memory consumption was 205.1MB. Max. memory is 16.1GB. [2024-11-09 15:03:39,429 INFO L158 Benchmark]: Witness Printer took 73.75ms. Allocated memory is still 369.1MB. Free memory was 317.7MB in the beginning and 312.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:39,430 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 151.0MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.89ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 91.7MB in the beginning and 151.4MB in the end (delta: -59.7MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.80ms. Allocated memory is still 201.3MB. Free memory was 151.4MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.19ms. Allocated memory is still 201.3MB. Free memory was 148.2MB in the beginning and 144.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 818.96ms. Allocated memory is still 201.3MB. Free memory was 144.0MB in the beginning and 145.3MB in the end (delta: -1.3MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8922.96ms. Allocated memory was 201.3MB in the beginning and 369.1MB in the end (delta: 167.8MB). Free memory was 145.3MB in the beginning and 317.7MB in the end (delta: -172.3MB). Peak memory consumption was 205.1MB. Max. memory is 16.1GB. * Witness Printer took 73.75ms. Allocated memory is still 369.1MB. Free memory was 317.7MB in the beginning and 312.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: 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 3 procedures, 49 locations, 13 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: 8.8s, OverallIterations: 15, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 666 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 587 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 334 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2003 IncrementalHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 42 mSDtfsCounter, 2003 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 241 SyntacticMatches, 11 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=10, InterpolantAutomatonStates: 100, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4098 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 1119/1378 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:03:39,455 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