./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 3061b6dc 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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:57:57,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:57:57,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:57:57,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:57:57,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:57:57,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:57:57,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:57:57,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:57:57,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:57:57,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:57:57,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:57:57,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:57:57,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:57:57,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:57:57,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:57:57,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:57:57,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:57:57,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:57:57,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:57:57,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:57:57,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:57:57,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:57:57,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:57:57,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:57:57,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:57:57,607 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:57:57,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:57:57,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:57:57,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:57:57,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:57:57,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:57:57,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:57:57,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:57:57,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:57:57,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:57:57,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:57:57,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:57:57,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:57:57,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:57:57,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:57:57,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:57:57,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:57:57,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:57:57,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:57:57,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-19 13:57:57,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:57:57,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:57:57,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:57:57,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:57:57,927 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:57:57,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-19 13:57:59,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:57:59,619 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:57:59,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-19 13:57:59,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c46895f1/8e79bb0b6c0c43dbb2c0f479a63d4e30/FLAG35f01cd57 [2024-11-19 13:57:59,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c46895f1/8e79bb0b6c0c43dbb2c0f479a63d4e30 [2024-11-19 13:57:59,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:57:59,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:57:59,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:57:59,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:57:59,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:57:59,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:59" (1/1) ... [2024-11-19 13:57:59,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d18878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:57:59, skipping insertion in model container [2024-11-19 13:57:59,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:57:59" (1/1) ... [2024-11-19 13:57:59,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:58:00,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:58:00,319 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:58:00,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:58:00,463 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:58:00,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00 WrapperNode [2024-11-19 13:58:00,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:58:00,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:58:00,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:58:00,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:58:00,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,528 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 188 [2024-11-19 13:58:00,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:58:00,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:58:00,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:58:00,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:58:00,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,563 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]. [2024-11-19 13:58:00,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:58:00,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:58:00,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:58:00,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:58:00,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (1/1) ... [2024-11-19 13:58:00,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:58:00,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:00,631 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) [2024-11-19 13:58:00,634 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 [2024-11-19 13:58:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 13:58:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 13:58:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 13:58:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 13:58:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 13:58:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 13:58:00,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 13:58:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:58:00,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:58:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 13:58:00,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 13:58:00,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 13:58:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 13:58:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 13:58:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:58:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:58:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 13:58:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:58:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:58:00,697 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:58:00,893 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:58:00,895 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:58:01,272 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:58:01,272 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:58:01,710 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:58:01,711 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 13:58:01,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:01 BoogieIcfgContainer [2024-11-19 13:58:01,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:58:01,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:58:01,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:58:01,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:58:01,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:57:59" (1/3) ... [2024-11-19 13:58:01,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a9b91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:58:01, skipping insertion in model container [2024-11-19 13:58:01,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:00" (2/3) ... [2024-11-19 13:58:01,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a9b91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:58:01, skipping insertion in model container [2024-11-19 13:58:01,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:01" (3/3) ... [2024-11-19 13:58:01,720 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-19 13:58:01,736 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:58:01,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-19 13:58:01,736 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:58:01,801 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:58:01,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 35 transitions, 74 flow [2024-11-19 13:58:01,874 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-11-19 13:58:01,876 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:58:01,879 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. [2024-11-19 13:58:01,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 35 transitions, 74 flow [2024-11-19 13:58:01,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 34 transitions, 71 flow [2024-11-19 13:58:01,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:58:01,898 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;@3d444a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:58:01,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 13:58:01,904 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:58:01,904 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 13:58:01,904 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:58:01,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:01,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 13:58:01,906 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)] === [2024-11-19 13:58:01,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash 491269, now seen corresponding path program 1 times [2024-11-19 13:58:01,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:01,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920623766] [2024-11-19 13:58:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:02,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:02,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920623766] [2024-11-19 13:58:02,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920623766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:02,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:02,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:58:02,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444007557] [2024-11-19 13:58:02,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:02,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:02,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:02,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:02,430 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) [2024-11-19 13:58:02,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:02,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:02,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:02,662 INFO L124 PetriNetUnfolderBase]: 86/246 cut-off events. [2024-11-19 13:58:02,664 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:58:02,666 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. [2024-11-19 13:58:02,669 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 30 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2024-11-19 13:58:02,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 169 flow [2024-11-19 13:58:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-19 13:58:02,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-19 13:58:02,687 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 4 states and 95 transitions. [2024-11-19 13:58:02,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 169 flow [2024-11-19 13:58:02,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:58:02,692 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 106 flow [2024-11-19 13:58:02,694 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} [2024-11-19 13:58:02,699 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-19 13:58:02,700 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 106 flow [2024-11-19 13:58:02,700 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) [2024-11-19 13:58:02,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:02,700 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 13:58:02,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:58:02,702 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)] === [2024-11-19 13:58:02,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:02,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1750983199, now seen corresponding path program 1 times [2024-11-19 13:58:02,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:02,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390336774] [2024-11-19 13:58:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:02,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:02,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:02,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390336774] [2024-11-19 13:58:02,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390336774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:02,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922355426] [2024-11-19 13:58:02,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:02,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:02,881 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) [2024-11-19 13:58:02,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:58:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:03,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:58:03,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:03,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:03,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922355426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:03,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:03,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 13:58:03,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484875726] [2024-11-19 13:58:03,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:03,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:58:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:58:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:03,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:03,138 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) [2024-11-19 13:58:03,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:03,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:03,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:03,332 INFO L124 PetriNetUnfolderBase]: 86/242 cut-off events. [2024-11-19 13:58:03,336 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-19 13:58:03,337 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. [2024-11-19 13:58:03,339 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 34 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-11-19 13:58:03,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 220 flow [2024-11-19 13:58:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:58:03,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:58:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-19 13:58:03,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-19 13:58:03,345 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 106 flow. Second operand 6 states and 126 transitions. [2024-11-19 13:58:03,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 220 flow [2024-11-19 13:58:03,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:58:03,348 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 112 flow [2024-11-19 13:58:03,349 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} [2024-11-19 13:58:03,349 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-19 13:58:03,350 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 112 flow [2024-11-19 13:58:03,350 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) [2024-11-19 13:58:03,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:03,351 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 13:58:03,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 13:58:03,555 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 [2024-11-19 13:58:03,556 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)] === [2024-11-19 13:58:03,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:03,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1554095185, now seen corresponding path program 1 times [2024-11-19 13:58:03,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:03,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628307167] [2024-11-19 13:58:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:03,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:58:03,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628307167] [2024-11-19 13:58:03,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628307167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:03,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:03,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:58:03,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950857082] [2024-11-19 13:58:03,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:03,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:58:03,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:03,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:58:03,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:58:03,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:03,636 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) [2024-11-19 13:58:03,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:03,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:03,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:03,734 INFO L124 PetriNetUnfolderBase]: 86/254 cut-off events. [2024-11-19 13:58:03,735 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-19 13:58:03,737 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. [2024-11-19 13:58:03,739 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2024-11-19 13:58:03,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 152 flow [2024-11-19 13:58:03,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:58:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:58:03,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-19 13:58:03,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-11-19 13:58:03,740 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 112 flow. Second operand 3 states and 62 transitions. [2024-11-19 13:58:03,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 35 transitions, 152 flow [2024-11-19 13:58:03,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 140 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:03,743 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 104 flow [2024-11-19 13:58:03,744 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} [2024-11-19 13:58:03,745 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-19 13:58:03,746 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 104 flow [2024-11-19 13:58:03,746 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) [2024-11-19 13:58:03,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:03,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:03,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:58:03,746 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)] === [2024-11-19 13:58:03,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:03,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1237104365, now seen corresponding path program 1 times [2024-11-19 13:58:03,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:03,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81862091] [2024-11-19 13:58:03,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:03,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:03,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:03,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81862091] [2024-11-19 13:58:03,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81862091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:03,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34181784] [2024-11-19 13:58:03,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:03,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:03,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:03,866 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) [2024-11-19 13:58:03,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:58:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:04,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 13:58:04,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:58:04,026 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:04,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34181784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:04,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:04,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-19 13:58:04,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082924755] [2024-11-19 13:58:04,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:04,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:58:04,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:04,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:58:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:58:04,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:04,038 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) [2024-11-19 13:58:04,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:04,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:04,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:04,202 INFO L124 PetriNetUnfolderBase]: 194/520 cut-off events. [2024-11-19 13:58:04,202 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-19 13:58:04,204 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. [2024-11-19 13:58:04,206 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 35 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-19 13:58:04,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 221 flow [2024-11-19 13:58:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:58:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:58:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-11-19 13:58:04,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2024-11-19 13:58:04,209 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 104 flow. Second operand 3 states and 78 transitions. [2024-11-19 13:58:04,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 221 flow [2024-11-19 13:58:04,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:04,211 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 126 flow [2024-11-19 13:58:04,211 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} [2024-11-19 13:58:04,213 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-19 13:58:04,213 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 126 flow [2024-11-19 13:58:04,213 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) [2024-11-19 13:58:04,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:04,214 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:04,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:58:04,414 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 [2024-11-19 13:58:04,415 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)] === [2024-11-19 13:58:04,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash 304470855, now seen corresponding path program 1 times [2024-11-19 13:58:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:04,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369868109] [2024-11-19 13:58:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:04,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:04,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369868109] [2024-11-19 13:58:04,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369868109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:04,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580964252] [2024-11-19 13:58:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:04,497 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) [2024-11-19 13:58:04,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:58:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:04,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 13:58:04,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 13:58:04,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:04,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580964252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:04,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:04,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-19 13:58:04,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484536407] [2024-11-19 13:58:04,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:04,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:58:04,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:04,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:58:04,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:58:04,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:04,658 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) [2024-11-19 13:58:04,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:04,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:04,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:04,810 INFO L124 PetriNetUnfolderBase]: 170/496 cut-off events. [2024-11-19 13:58:04,810 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2024-11-19 13:58:04,811 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. [2024-11-19 13:58:04,813 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 34 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-19 13:58:04,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 225 flow [2024-11-19 13:58:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:58:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:58:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-19 13:58:04,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-19 13:58:04,815 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 126 flow. Second operand 3 states and 77 transitions. [2024-11-19 13:58:04,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 225 flow [2024-11-19 13:58:04,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:04,817 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 116 flow [2024-11-19 13:58:04,817 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} [2024-11-19 13:58:04,818 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-19 13:58:04,818 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 116 flow [2024-11-19 13:58:04,818 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) [2024-11-19 13:58:04,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:04,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:04,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 13:58:05,019 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 [2024-11-19 13:58:05,020 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)] === [2024-11-19 13:58:05,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1301425, now seen corresponding path program 1 times [2024-11-19 13:58:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:05,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692428599] [2024-11-19 13:58:05,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:05,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:05,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:05,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692428599] [2024-11-19 13:58:05,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692428599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:05,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080220679] [2024-11-19 13:58:05,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:05,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:05,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:05,142 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) [2024-11-19 13:58:05,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:58:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:05,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:58:05,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:05,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:58:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080220679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:58:05,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:58:05,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:58:05,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681291844] [2024-11-19 13:58:05,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:58:05,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:58:05,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:05,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:58:05,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:58:05,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-19 13:58:05,369 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) [2024-11-19 13:58:05,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:05,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-19 13:58:05,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:05,633 INFO L124 PetriNetUnfolderBase]: 170/446 cut-off events. [2024-11-19 13:58:05,633 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-11-19 13:58:05,635 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. [2024-11-19 13:58:05,637 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 37 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2024-11-19 13:58:05,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 294 flow [2024-11-19 13:58:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:58:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:58:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-11-19 13:58:05,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563265306122449 [2024-11-19 13:58:05,639 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 116 flow. Second operand 7 states and 138 transitions. [2024-11-19 13:58:05,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 294 flow [2024-11-19 13:58:05,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 13:58:05,641 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 178 flow [2024-11-19 13:58:05,642 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} [2024-11-19 13:58:05,642 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-19 13:58:05,642 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 178 flow [2024-11-19 13:58:05,643 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) [2024-11-19 13:58:05,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:05,643 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:05,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 13:58:05,843 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 [2024-11-19 13:58:05,844 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)] === [2024-11-19 13:58:05,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 237870449, now seen corresponding path program 2 times [2024-11-19 13:58:05,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:05,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166383376] [2024-11-19 13:58:05,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:05,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:05,890 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:05,890 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:58:05,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166383376] [2024-11-19 13:58:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166383376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:05,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:05,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:05,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097047338] [2024-11-19 13:58:05,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:05,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:05,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:05,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:05,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:05,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:05,952 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) [2024-11-19 13:58:05,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:05,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:05,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:06,108 INFO L124 PetriNetUnfolderBase]: 170/483 cut-off events. [2024-11-19 13:58:06,109 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2024-11-19 13:58:06,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 483 events. 170/483 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2389 event pairs, 88 based on Foata normal form. 24/486 useless extension candidates. Maximal degree in co-relation 1041. Up to 220 conditions per place. [2024-11-19 13:58:06,112 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 35 selfloop transitions, 7 changer transitions 1/55 dead transitions. [2024-11-19 13:58:06,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 318 flow [2024-11-19 13:58:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-19 13:58:06,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2024-11-19 13:58:06,113 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 178 flow. Second operand 4 states and 93 transitions. [2024-11-19 13:58:06,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 318 flow [2024-11-19 13:58:06,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 306 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:06,116 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 178 flow [2024-11-19 13:58:06,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2024-11-19 13:58:06,117 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-19 13:58:06,117 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 178 flow [2024-11-19 13:58:06,118 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) [2024-11-19 13:58:06,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:06,118 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:06,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:58:06,118 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:58:06,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1215950206, now seen corresponding path program 1 times [2024-11-19 13:58:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358271937] [2024-11-19 13:58:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:58:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:06,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358271937] [2024-11-19 13:58:06,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358271937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:06,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:06,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:06,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958197333] [2024-11-19 13:58:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:06,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:06,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:06,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-19 13:58:06,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 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) [2024-11-19 13:58:06,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:06,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-19 13:58:06,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:06,427 INFO L124 PetriNetUnfolderBase]: 158/431 cut-off events. [2024-11-19 13:58:06,428 INFO L125 PetriNetUnfolderBase]: For 366/366 co-relation queries the response was YES. [2024-11-19 13:58:06,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 431 events. 158/431 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1943 event pairs, 85 based on Foata normal form. 12/428 useless extension candidates. Maximal degree in co-relation 981. Up to 201 conditions per place. [2024-11-19 13:58:06,430 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 42 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2024-11-19 13:58:06,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 59 transitions, 338 flow [2024-11-19 13:58:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:06,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-19 13:58:06,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-19 13:58:06,432 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 178 flow. Second operand 4 states and 98 transitions. [2024-11-19 13:58:06,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 59 transitions, 338 flow [2024-11-19 13:58:06,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:06,436 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 190 flow [2024-11-19 13:58:06,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2024-11-19 13:58:06,436 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2024-11-19 13:58:06,437 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 190 flow [2024-11-19 13:58:06,437 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) [2024-11-19 13:58:06,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:06,437 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:06,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 13:58:06,437 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:58:06,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash -769618986, now seen corresponding path program 1 times [2024-11-19 13:58:06,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:06,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735724269] [2024-11-19 13:58:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:06,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:06,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:58:06,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:06,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735724269] [2024-11-19 13:58:06,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735724269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:06,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:06,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:06,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425791579] [2024-11-19 13:58:06,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:06,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:06,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:06,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:06,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:06,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-19 13:58:06,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 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) [2024-11-19 13:58:06,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:06,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-19 13:58:06,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:06,750 INFO L124 PetriNetUnfolderBase]: 194/492 cut-off events. [2024-11-19 13:58:06,750 INFO L125 PetriNetUnfolderBase]: For 597/597 co-relation queries the response was YES. [2024-11-19 13:58:06,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 492 events. 194/492 cut-off events. For 597/597 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2315 event pairs, 110 based on Foata normal form. 24/512 useless extension candidates. Maximal degree in co-relation 1224. Up to 275 conditions per place. [2024-11-19 13:58:06,753 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-19 13:58:06,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 396 flow [2024-11-19 13:58:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-19 13:58:06,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-19 13:58:06,755 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 190 flow. Second operand 4 states and 92 transitions. [2024-11-19 13:58:06,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 396 flow [2024-11-19 13:58:06,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 62 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:58:06,758 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 204 flow [2024-11-19 13:58:06,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2024-11-19 13:58:06,759 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2024-11-19 13:58:06,760 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 204 flow [2024-11-19 13:58:06,760 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) [2024-11-19 13:58:06,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:06,760 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:06,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 13:58:06,761 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:58:06,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:06,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1036310670, now seen corresponding path program 1 times [2024-11-19 13:58:06,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:06,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395442199] [2024-11-19 13:58:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:06,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 13:58:06,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:06,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395442199] [2024-11-19 13:58:06,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395442199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:06,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753367091] [2024-11-19 13:58:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:06,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:06,895 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) [2024-11-19 13:58:06,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:58:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:07,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 13:58:07,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 13:58:07,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:58:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 13:58:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753367091] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:58:07,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:58:07,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 19 [2024-11-19 13:58:07,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419752214] [2024-11-19 13:58:07,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:58:07,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 13:58:07,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:07,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 13:58:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-19 13:58:07,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 35 [2024-11-19 13:58:07,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 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) [2024-11-19 13:58:07,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:07,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 35 [2024-11-19 13:58:07,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:08,314 INFO L124 PetriNetUnfolderBase]: 352/819 cut-off events. [2024-11-19 13:58:08,314 INFO L125 PetriNetUnfolderBase]: For 1082/1082 co-relation queries the response was YES. [2024-11-19 13:58:08,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 819 events. 352/819 cut-off events. For 1082/1082 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3843 event pairs, 31 based on Foata normal form. 18/833 useless extension candidates. Maximal degree in co-relation 2183. Up to 120 conditions per place. [2024-11-19 13:58:08,320 INFO L140 encePairwiseOnDemand]: 22/35 looper letters, 100 selfloop transitions, 49 changer transitions 0/156 dead transitions. [2024-11-19 13:58:08,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 156 transitions, 988 flow [2024-11-19 13:58:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 13:58:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-19 13:58:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 372 transitions. [2024-11-19 13:58:08,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-11-19 13:58:08,323 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 204 flow. Second operand 24 states and 372 transitions. [2024-11-19 13:58:08,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 156 transitions, 988 flow [2024-11-19 13:58:08,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 156 transitions, 955 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:08,328 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 606 flow [2024-11-19 13:58:08,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=606, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2024-11-19 13:58:08,328 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2024-11-19 13:58:08,329 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 606 flow [2024-11-19 13:58:08,329 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) [2024-11-19 13:58:08,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:08,329 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:08,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 13:58:08,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 13:58:08,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:58:08,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:08,536 INFO L85 PathProgramCache]: Analyzing trace with hash 71388844, now seen corresponding path program 1 times [2024-11-19 13:58:08,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:08,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606220317] [2024-11-19 13:58:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:08,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 13:58:08,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:08,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606220317] [2024-11-19 13:58:08,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606220317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:08,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:08,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:58:08,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42137619] [2024-11-19 13:58:08,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:08,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:58:08,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:58:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:58:08,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-19 13:58:08,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 606 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) [2024-11-19 13:58:08,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:08,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-19 13:58:08,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:08,951 INFO L124 PetriNetUnfolderBase]: 271/724 cut-off events. [2024-11-19 13:58:08,951 INFO L125 PetriNetUnfolderBase]: For 2053/2056 co-relation queries the response was YES. [2024-11-19 13:58:08,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2181 conditions, 724 events. 271/724 cut-off events. For 2053/2056 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3380 event pairs, 52 based on Foata normal form. 28/748 useless extension candidates. Maximal degree in co-relation 2037. Up to 410 conditions per place. [2024-11-19 13:58:08,956 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 61 selfloop transitions, 11 changer transitions 0/85 dead transitions. [2024-11-19 13:58:08,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 85 transitions, 813 flow [2024-11-19 13:58:08,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:58:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:58:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-19 13:58:08,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-19 13:58:08,957 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 606 flow. Second operand 3 states and 69 transitions. [2024-11-19 13:58:08,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 85 transitions, 813 flow [2024-11-19 13:58:08,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 85 transitions, 771 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-19 13:58:08,965 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 575 flow [2024-11-19 13:58:08,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2024-11-19 13:58:08,965 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 47 predicate places. [2024-11-19 13:58:08,966 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 575 flow [2024-11-19 13:58:08,966 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) [2024-11-19 13:58:08,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:08,966 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:08,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 13:58:08,966 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)] === [2024-11-19 13:58:08,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:08,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1125712749, now seen corresponding path program 1 times [2024-11-19 13:58:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:08,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643492242] [2024-11-19 13:58:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:08,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 13:58:09,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:09,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643492242] [2024-11-19 13:58:09,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643492242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:09,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:09,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:09,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234317459] [2024-11-19 13:58:09,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:09,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:09,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:09,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:09,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:09,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-19 13:58:09,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 575 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) [2024-11-19 13:58:09,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:09,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-19 13:58:09,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:09,317 INFO L124 PetriNetUnfolderBase]: 254/659 cut-off events. [2024-11-19 13:58:09,317 INFO L125 PetriNetUnfolderBase]: For 1876/1876 co-relation queries the response was YES. [2024-11-19 13:58:09,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2091 conditions, 659 events. 254/659 cut-off events. For 1876/1876 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3003 event pairs, 96 based on Foata normal form. 17/669 useless extension candidates. Maximal degree in co-relation 1955. Up to 324 conditions per place. [2024-11-19 13:58:09,322 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 43 selfloop transitions, 33 changer transitions 8/94 dead transitions. [2024-11-19 13:58:09,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 94 transitions, 895 flow [2024-11-19 13:58:09,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:09,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-19 13:58:09,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-19 13:58:09,323 INFO L175 Difference]: Start difference. First operand has 82 places, 73 transitions, 575 flow. Second operand 4 states and 89 transitions. [2024-11-19 13:58:09,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 94 transitions, 895 flow [2024-11-19 13:58:09,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 94 transitions, 871 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:09,333 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 591 flow [2024-11-19 13:58:09,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=591, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-11-19 13:58:09,334 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 47 predicate places. [2024-11-19 13:58:09,335 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 591 flow [2024-11-19 13:58:09,335 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) [2024-11-19 13:58:09,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:09,336 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:09,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:58:09,336 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:58:09,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 736743569, now seen corresponding path program 1 times [2024-11-19 13:58:09,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:09,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743906451] [2024-11-19 13:58:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:58:09,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743906451] [2024-11-19 13:58:09,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743906451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869772065] [2024-11-19 13:58:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:09,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:09,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:09,804 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) [2024-11-19 13:58:09,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:58:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:10,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 13:58:10,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:58:10,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:58:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 13:58:10,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869772065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:58:10,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:58:10,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-19 13:58:10,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765496513] [2024-11-19 13:58:10,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:58:10,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 13:58:10,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:10,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 13:58:10,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 13:58:10,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-19 13:58:10,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 591 flow. Second operand has 23 states, 23 states have (on average 14.391304347826088) internal successors, (331), 23 states have internal predecessors, (331), 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) [2024-11-19 13:58:10,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:10,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-19 13:58:10,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:10,826 INFO L124 PetriNetUnfolderBase]: 226/601 cut-off events. [2024-11-19 13:58:10,826 INFO L125 PetriNetUnfolderBase]: For 1931/1931 co-relation queries the response was YES. [2024-11-19 13:58:10,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1997 conditions, 601 events. 226/601 cut-off events. For 1931/1931 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2649 event pairs, 71 based on Foata normal form. 3/599 useless extension candidates. Maximal degree in co-relation 1792. Up to 193 conditions per place. [2024-11-19 13:58:10,831 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 37 changer transitions 0/87 dead transitions. [2024-11-19 13:58:10,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 87 transitions, 885 flow [2024-11-19 13:58:10,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 13:58:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 13:58:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 332 transitions. [2024-11-19 13:58:10,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45170068027210886 [2024-11-19 13:58:10,833 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 591 flow. Second operand 21 states and 332 transitions. [2024-11-19 13:58:10,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 87 transitions, 885 flow [2024-11-19 13:58:10,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 87 transitions, 780 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-19 13:58:10,842 INFO L231 Difference]: Finished difference. Result has 99 places, 74 transitions, 673 flow [2024-11-19 13:58:10,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=673, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2024-11-19 13:58:10,842 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 64 predicate places. [2024-11-19 13:58:10,843 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 673 flow [2024-11-19 13:58:10,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.391304347826088) internal successors, (331), 23 states have internal predecessors, (331), 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) [2024-11-19 13:58:10,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:10,843 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:10,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 13:58:11,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:11,044 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)] === [2024-11-19 13:58:11,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1935194633, now seen corresponding path program 2 times [2024-11-19 13:58:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619117983] [2024-11-19 13:58:11,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:11,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:11,157 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:58:11,157 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:11,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619117983] [2024-11-19 13:58:11,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619117983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:11,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28689973] [2024-11-19 13:58:11,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:11,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:11,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:11,399 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) [2024-11-19 13:58:11,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:58:11,739 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:58:11,739 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:11,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:58:11,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 13:58:11,778 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:11,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28689973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:11,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:11,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-19 13:58:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398220001] [2024-11-19 13:58:11,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:11,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:58:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:11,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:58:11,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 13:58:11,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-19 13:58:11,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 673 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-11-19 13:58:11,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:11,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-19 13:58:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:11,985 INFO L124 PetriNetUnfolderBase]: 258/626 cut-off events. [2024-11-19 13:58:11,985 INFO L125 PetriNetUnfolderBase]: For 1828/1831 co-relation queries the response was YES. [2024-11-19 13:58:11,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2032 conditions, 626 events. 258/626 cut-off events. For 1828/1831 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2581 event pairs, 83 based on Foata normal form. 38/662 useless extension candidates. Maximal degree in co-relation 1824. Up to 303 conditions per place. [2024-11-19 13:58:11,990 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 68 selfloop transitions, 14 changer transitions 0/93 dead transitions. [2024-11-19 13:58:11,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 93 transitions, 969 flow [2024-11-19 13:58:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-19 13:58:11,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-19 13:58:11,992 INFO L175 Difference]: Start difference. First operand has 99 places, 74 transitions, 673 flow. Second operand 4 states and 80 transitions. [2024-11-19 13:58:11,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 93 transitions, 969 flow [2024-11-19 13:58:11,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 93 transitions, 875 flow, removed 4 selfloop flow, removed 14 redundant places. [2024-11-19 13:58:11,999 INFO L231 Difference]: Finished difference. Result has 86 places, 72 transitions, 607 flow [2024-11-19 13:58:11,999 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=4, PETRI_FLOW=607, PETRI_PLACES=86, PETRI_TRANSITIONS=72} [2024-11-19 13:58:12,000 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2024-11-19 13:58:12,000 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 607 flow [2024-11-19 13:58:12,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-11-19 13:58:12,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:12,000 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:12,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:58:12,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:12,201 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)] === [2024-11-19 13:58:12,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash 138509033, now seen corresponding path program 1 times [2024-11-19 13:58:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:12,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756917530] [2024-11-19 13:58:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:12,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-19 13:58:12,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:12,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756917530] [2024-11-19 13:58:12,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756917530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:12,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:12,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:12,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142031741] [2024-11-19 13:58:12,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:12,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:12,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:12,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:12,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:12,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-19 13:58:12,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 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) [2024-11-19 13:58:12,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:12,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-19 13:58:12,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:12,595 INFO L124 PetriNetUnfolderBase]: 234/614 cut-off events. [2024-11-19 13:58:12,595 INFO L125 PetriNetUnfolderBase]: For 1696/1699 co-relation queries the response was YES. [2024-11-19 13:58:12,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 614 events. 234/614 cut-off events. For 1696/1699 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2564 event pairs, 23 based on Foata normal form. 27/639 useless extension candidates. Maximal degree in co-relation 1733. Up to 313 conditions per place. [2024-11-19 13:58:12,599 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2024-11-19 13:58:12,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 95 transitions, 939 flow [2024-11-19 13:58:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:12,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:12,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-19 13:58:12,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-11-19 13:58:12,600 INFO L175 Difference]: Start difference. First operand has 86 places, 72 transitions, 607 flow. Second operand 4 states and 79 transitions. [2024-11-19 13:58:12,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 95 transitions, 939 flow [2024-11-19 13:58:12,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 95 transitions, 905 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:12,606 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2024-11-19 13:58:12,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=569, 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} [2024-11-19 13:58:12,606 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2024-11-19 13:58:12,607 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2024-11-19 13:58:12,607 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) [2024-11-19 13:58:12,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-19 13:58:12,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-19 13:58:12,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-19 13:58:12,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-19 13:58:12,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-19 13:58:12,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-19 13:58:12,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-19 13:58:12,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-19 13:58:12,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-19 13:58:12,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-19 13:58:12,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-19 13:58:12,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-19 13:58:12,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-19 13:58:12,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 13:58:12,612 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:12,617 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 13:58:12,617 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 13:58:12,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:58:12 BasicIcfg [2024-11-19 13:58:12,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 13:58:12,623 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 13:58:12,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 13:58:12,623 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 13:58:12,623 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:01" (3/4) ... [2024-11-19 13:58:12,625 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 13:58:12,627 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 13:58:12,633 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 99 nodes and edges [2024-11-19 13:58:12,634 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-19 13:58:12,634 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 13:58:12,634 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 13:58:12,720 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 13:58:12,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 13:58:12,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 13:58:12,722 INFO L158 Benchmark]: Toolchain (without parser) took 13059.93ms. Allocated memory was 174.1MB in the beginning and 325.1MB in the end (delta: 151.0MB). Free memory was 140.7MB in the beginning and 120.8MB in the end (delta: 19.9MB). Peak memory consumption was 173.8MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,722 INFO L158 Benchmark]: CDTParser took 1.04ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:58:12,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.28ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 96.4MB in the end (delta: 44.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.95ms. Allocated memory is still 174.1MB. Free memory was 96.4MB in the beginning and 92.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,723 INFO L158 Benchmark]: Boogie Preprocessor took 55.29ms. Allocated memory is still 174.1MB. Free memory was 92.7MB in the beginning and 89.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,723 INFO L158 Benchmark]: RCFGBuilder took 1125.81ms. Allocated memory is still 174.1MB. Free memory was 89.3MB in the beginning and 71.1MB in the end (delta: 18.2MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,723 INFO L158 Benchmark]: TraceAbstraction took 10908.56ms. Allocated memory was 174.1MB in the beginning and 325.1MB in the end (delta: 151.0MB). Free memory was 71.1MB in the beginning and 125.0MB in the end (delta: -53.9MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,723 INFO L158 Benchmark]: Witness Printer took 98.62ms. Allocated memory is still 325.1MB. Free memory was 125.0MB in the beginning and 120.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 13:58:12,724 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.28ms. Allocated memory is still 174.1MB. Free memory was 140.7MB in the beginning and 96.4MB in the end (delta: 44.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.95ms. Allocated memory is still 174.1MB. Free memory was 96.4MB in the beginning and 92.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.29ms. Allocated memory is still 174.1MB. Free memory was 92.7MB in the beginning and 89.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1125.81ms. Allocated memory is still 174.1MB. Free memory was 89.3MB in the beginning and 71.1MB in the end (delta: 18.2MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10908.56ms. Allocated memory was 174.1MB in the beginning and 325.1MB in the end (delta: 151.0MB). Free memory was 71.1MB in the beginning and 125.0MB in the end (delta: -53.9MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 98.62ms. Allocated memory is still 325.1MB. Free memory was 125.0MB in the beginning and 120.8MB in the end (delta: 4.2MB). 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: 10.8s, OverallIterations: 15, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 695 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 619 mSDsluCounter, 446 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 410 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1974 IncrementalHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 36 mSDtfsCounter, 1974 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 205 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=673occurred in iteration=13, InterpolantAutomatonStates: 98, 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: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 522 NumberOfCodeBlocks, 513 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 1010 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3191 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 691/944 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! [2024-11-19 13:58:12,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE