./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_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 c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:03:22,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:03:22,498 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:03:22,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:03:22,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:03:22,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:03:22,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:03:22,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:03:22,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:03:22,543 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:03:22,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:03:22,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:03:22,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:03:22,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:03:22,547 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:03:22,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:03:22,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:03:22,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:03:22,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:03:22,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:03:22,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:03:22,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:03:22,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:03:22,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:03:22,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:03:22,552 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:03:22,552 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:03:22,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:03:22,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:03:22,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:03:22,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:03:22,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:03:22,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:03:22,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:03:22,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:03:22,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:03:22,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:03:22,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:03:22,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:03:22,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:03:22,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:03:22,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:03:22,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:03:22,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:03:22,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 [2024-11-09 15:03:22,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:03:22,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:03:22,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:03:22,834 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:03:22,834 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:03:22,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2024-11-09 15:03:24,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:03:24,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:03:24,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2024-11-09 15:03:24,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05c1f37fb/1ca7312580034f7bb27724fd9a3f0bc5/FLAG6a76fe9e8 [2024-11-09 15:03:24,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05c1f37fb/1ca7312580034f7bb27724fd9a3f0bc5 [2024-11-09 15:03:24,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:03:24,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:03:24,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:03:24,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:03:24,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:03:24,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:03:24" (1/1) ... [2024-11-09 15:03:24,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471da3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:24, skipping insertion in model container [2024-11-09 15:03:24,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:03:24" (1/1) ... [2024-11-09 15:03:24,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:03:25,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:03:25,179 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:03:25,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:03:25,354 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:03:25,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25 WrapperNode [2024-11-09 15:03:25,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:03:25,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:03:25,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:03:25,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:03:25,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,435 INFO L138 Inliner]: procedures = 372, calls = 88, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 192 [2024-11-09 15:03:25,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:03:25,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:03:25,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:03:25,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:03:25,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,457 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,480 INFO L175 MemorySlicer]: Split 78 memory accesses to 3 slices as follows [50, 14, 14]. 64 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 11 writes are split as follows [0, 1, 10]. [2024-11-09 15:03:25,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:03:25,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:03:25,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:03:25,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:03:25,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (1/1) ... [2024-11-09 15:03:25,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:03:25,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:25,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:03:25,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:03:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 15:03:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 15:03:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 15:03:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 15:03:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 15:03:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 15:03:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:03:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:03:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:03:25,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:03:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:03:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:03:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:03:25,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:03:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:03:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:03:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 15:03:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 15:03:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 15:03:25,607 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 15:03:25,608 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 15:03:25,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:03:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:03:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:03:25,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:03:25,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:03:25,611 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:03:25,814 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:03:25,816 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:03:26,219 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:03:26,219 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:03:26,686 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:03:26,687 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 15:03:26,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:26 BoogieIcfgContainer [2024-11-09 15:03:26,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:03:26,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:03:26,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:03:26,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:03:26,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:03:24" (1/3) ... [2024-11-09 15:03:26,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1433c362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:03:26, skipping insertion in model container [2024-11-09 15:03:26,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:03:25" (2/3) ... [2024-11-09 15:03:26,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1433c362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:03:26, skipping insertion in model container [2024-11-09 15:03:26,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:26" (3/3) ... [2024-11-09 15:03:26,698 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2024-11-09 15:03:26,717 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:03:26,717 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 15:03:26,717 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:03:26,788 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 15:03:26,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 25 transitions, 54 flow [2024-11-09 15:03:26,860 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-09 15:03:26,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:26,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 24 events. 2/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 13. Up to 2 conditions per place. [2024-11-09 15:03:26,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 25 transitions, 54 flow [2024-11-09 15:03:26,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 11 places, 12 transitions, 24 flow [2024-11-09 15:03:26,876 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:03:26,885 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;@199699d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:03:26,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 15:03:26,889 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:03:26,890 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:03:26,890 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:26,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:26,892 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:03:26,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:26,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash 505546, now seen corresponding path program 1 times [2024-11-09 15:03:26,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:26,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346603784] [2024-11-09 15:03:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:26,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:27,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:27,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346603784] [2024-11-09 15:03:27,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346603784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:27,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:27,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128273276] [2024-11-09 15:03:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:27,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:27,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:27,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:27,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:27,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 12 transitions, 24 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:27,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:27,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:27,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:27,455 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2024-11-09 15:03:27,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:03:27,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 15 events. 2/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2024-11-09 15:03:27,457 INFO L140 encePairwiseOnDemand]: 19/25 looper letters, 7 selfloop transitions, 3 changer transitions 0/14 dead transitions. [2024-11-09 15:03:27,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 14 transitions, 48 flow [2024-11-09 15:03:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-11-09 15:03:27,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33 [2024-11-09 15:03:27,470 INFO L175 Difference]: Start difference. First operand has 11 places, 12 transitions, 24 flow. Second operand 4 states and 33 transitions. [2024-11-09 15:03:27,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 14 transitions, 48 flow [2024-11-09 15:03:27,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 14 transitions, 48 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:03:27,474 INFO L231 Difference]: Finished difference. Result has 16 places, 14 transitions, 48 flow [2024-11-09 15:03:27,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=16, PETRI_TRANSITIONS=14} [2024-11-09 15:03:27,479 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 5 predicate places. [2024-11-09 15:03:27,479 INFO L471 AbstractCegarLoop]: Abstraction has has 16 places, 14 transitions, 48 flow [2024-11-09 15:03:27,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:27,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:27,480 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:03:27,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:03:27,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:27,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2118659089, now seen corresponding path program 1 times [2024-11-09 15:03:27,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:27,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034190648] [2024-11-09 15:03:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:27,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:27,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:27,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034190648] [2024-11-09 15:03:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034190648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:27,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717433199] [2024-11-09 15:03:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:27,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:27,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:27,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:27,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:03:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:27,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:03:27,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:27,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:27,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717433199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:27,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:27,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:03:27,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214371948] [2024-11-09 15:03:27,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:27,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:03:27,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:27,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:03:27,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:03:27,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:27,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 48 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:27,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:27,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:27,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:27,991 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2024-11-09 15:03:27,992 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:03:27,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2024-11-09 15:03:27,992 INFO L140 encePairwiseOnDemand]: 20/25 looper letters, 3 selfloop transitions, 6 changer transitions 0/13 dead transitions. [2024-11-09 15:03:27,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 13 transitions, 62 flow [2024-11-09 15:03:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:03:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:03:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 40 transitions. [2024-11-09 15:03:27,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.26666666666666666 [2024-11-09 15:03:27,995 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 48 flow. Second operand 6 states and 40 transitions. [2024-11-09 15:03:27,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 13 transitions, 62 flow [2024-11-09 15:03:27,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:27,998 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 54 flow [2024-11-09 15:03:27,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=54, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2024-11-09 15:03:27,999 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 8 predicate places. [2024-11-09 15:03:27,999 INFO L471 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 54 flow [2024-11-09 15:03:27,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:27,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:28,000 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:03:28,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:03:28,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:28,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:28,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:28,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1253921827, now seen corresponding path program 1 times [2024-11-09 15:03:28,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:28,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858215760] [2024-11-09 15:03:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:28,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:28,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:03:28,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:28,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858215760] [2024-11-09 15:03:28,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858215760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:28,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:28,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791153859] [2024-11-09 15:03:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:28,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:28,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:28,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:28,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:28,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:28,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:28,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:28,334 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2024-11-09 15:03:28,334 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 15:03:28,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 13 events. 2/13 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 16. Up to 7 conditions per place. [2024-11-09 15:03:28,335 INFO L140 encePairwiseOnDemand]: 22/25 looper letters, 4 selfloop transitions, 4 changer transitions 0/12 dead transitions. [2024-11-09 15:03:28,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 12 transitions, 66 flow [2024-11-09 15:03:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2024-11-09 15:03:28,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29333333333333333 [2024-11-09 15:03:28,337 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 54 flow. Second operand 3 states and 22 transitions. [2024-11-09 15:03:28,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 12 transitions, 66 flow [2024-11-09 15:03:28,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 12 transitions, 44 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-09 15:03:28,338 INFO L231 Difference]: Finished difference. Result has 14 places, 12 transitions, 36 flow [2024-11-09 15:03:28,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=14, PETRI_TRANSITIONS=12} [2024-11-09 15:03:28,339 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 3 predicate places. [2024-11-09 15:03:28,339 INFO L471 AbstractCegarLoop]: Abstraction has has 14 places, 12 transitions, 36 flow [2024-11-09 15:03:28,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:28,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:28,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:28,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:03:28,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:28,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:28,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1253920792, now seen corresponding path program 1 times [2024-11-09 15:03:28,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197703999] [2024-11-09 15:03:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:28,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:28,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197703999] [2024-11-09 15:03:28,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197703999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:28,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131337807] [2024-11-09 15:03:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:28,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:28,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:28,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:28,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:03:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:28,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:03:28,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:28,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:28,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131337807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:28,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:28,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:03:28,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618619936] [2024-11-09 15:03:28,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:28,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:03:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:28,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:03:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:03:28,710 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:28,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 12 transitions, 36 flow. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:28,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:28,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:28,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:28,850 INFO L124 PetriNetUnfolderBase]: 2/17 cut-off events. [2024-11-09 15:03:28,851 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-09 15:03:28,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 17 events. 2/17 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 9. Up to 5 conditions per place. [2024-11-09 15:03:28,851 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 4 selfloop transitions, 7 changer transitions 0/15 dead transitions. [2024-11-09 15:03:28,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 73 flow [2024-11-09 15:03:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:03:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:03:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 48 transitions. [2024-11-09 15:03:28,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2742857142857143 [2024-11-09 15:03:28,853 INFO L175 Difference]: Start difference. First operand has 14 places, 12 transitions, 36 flow. Second operand 7 states and 48 transitions. [2024-11-09 15:03:28,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 73 flow [2024-11-09 15:03:28,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 59 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:28,855 INFO L231 Difference]: Finished difference. Result has 20 places, 15 transitions, 62 flow [2024-11-09 15:03:28,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=62, PETRI_PLACES=20, PETRI_TRANSITIONS=15} [2024-11-09 15:03:28,856 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 9 predicate places. [2024-11-09 15:03:28,857 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 62 flow [2024-11-09 15:03:28,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:28,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:28,857 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1] [2024-11-09 15:03:28,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:03:29,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 15:03:29,058 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:29,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash 932606408, now seen corresponding path program 2 times [2024-11-09 15:03:29,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:29,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506431896] [2024-11-09 15:03:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:29,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 15:03:29,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:29,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506431896] [2024-11-09 15:03:29,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506431896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:29,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:29,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:29,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375433874] [2024-11-09 15:03:29,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:29,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:03:29,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:03:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:03:29,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:29,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:29,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:29,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:29,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:29,295 INFO L124 PetriNetUnfolderBase]: 2/20 cut-off events. [2024-11-09 15:03:29,295 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 15:03:29,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 20 events. 2/20 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 18. Up to 14 conditions per place. [2024-11-09 15:03:29,296 INFO L140 encePairwiseOnDemand]: 20/25 looper letters, 12 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2024-11-09 15:03:29,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 96 flow [2024-11-09 15:03:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:29,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2024-11-09 15:03:29,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32 [2024-11-09 15:03:29,298 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 62 flow. Second operand 4 states and 32 transitions. [2024-11-09 15:03:29,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 96 flow [2024-11-09 15:03:29,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:03:29,299 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 80 flow [2024-11-09 15:03:29,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2024-11-09 15:03:29,300 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 12 predicate places. [2024-11-09 15:03:29,300 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 80 flow [2024-11-09 15:03:29,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:29,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:29,301 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-09 15:03:29,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:03:29,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:29,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash -865430145, now seen corresponding path program 1 times [2024-11-09 15:03:29,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:29,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753093663] [2024-11-09 15:03:29,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:03:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753093663] [2024-11-09 15:03:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753093663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568708286] [2024-11-09 15:03:29,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:29,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:29,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:29,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:29,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:03:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:29,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:03:29,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:03:29,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:29,863 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:03:29,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568708286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:29,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:29,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-09 15:03:29,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043634648] [2024-11-09 15:03:29,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:29,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 15:03:29,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 15:03:29,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 15:03:29,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:29,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 80 flow. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:29,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:29,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:29,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:30,184 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-09 15:03:30,184 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-09 15:03:30,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 32 events. 2/32 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 72. Up to 8 conditions per place. [2024-11-09 15:03:30,185 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 6 selfloop transitions, 15 changer transitions 0/25 dead transitions. [2024-11-09 15:03:30,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 170 flow [2024-11-09 15:03:30,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 15:03:30,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 15:03:30,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 98 transitions. [2024-11-09 15:03:30,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2613333333333333 [2024-11-09 15:03:30,187 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 80 flow. Second operand 15 states and 98 transitions. [2024-11-09 15:03:30,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 170 flow [2024-11-09 15:03:30,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:03:30,190 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 175 flow [2024-11-09 15:03:30,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=175, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2024-11-09 15:03:30,192 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 29 predicate places. [2024-11-09 15:03:30,192 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 175 flow [2024-11-09 15:03:30,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:30,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:30,193 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1] [2024-11-09 15:03:30,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:03:30,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:30,395 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:30,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash -617139777, now seen corresponding path program 2 times [2024-11-09 15:03:30,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:30,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624124601] [2024-11-09 15:03:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:30,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:03:30,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624124601] [2024-11-09 15:03:30,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624124601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982510516] [2024-11-09 15:03:30,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:03:30,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:30,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:30,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:30,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:03:31,043 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:03:31,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:03:31,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:03:31,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:03:31,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:03:31,313 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:03:31,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982510516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:03:31,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:03:31,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-09 15:03:31,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270791970] [2024-11-09 15:03:31,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:03:31,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:03:31,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:31,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:03:31,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 15:03:31,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:31,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 175 flow. Second operand has 23 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:31,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:31,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:31,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:31,585 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-09 15:03:31,586 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-09 15:03:31,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 41 events. 2/41 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 3/44 useless extension candidates. Maximal degree in co-relation 132. Up to 11 conditions per place. [2024-11-09 15:03:31,587 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 6 selfloop transitions, 21 changer transitions 0/31 dead transitions. [2024-11-09 15:03:31,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 31 transitions, 283 flow [2024-11-09 15:03:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 15:03:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 15:03:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 133 transitions. [2024-11-09 15:03:31,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25333333333333335 [2024-11-09 15:03:31,589 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 175 flow. Second operand 21 states and 133 transitions. [2024-11-09 15:03:31,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 31 transitions, 283 flow [2024-11-09 15:03:31,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 31 transitions, 273 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:31,592 INFO L231 Difference]: Finished difference. Result has 59 places, 31 transitions, 276 flow [2024-11-09 15:03:31,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=276, PETRI_PLACES=59, PETRI_TRANSITIONS=31} [2024-11-09 15:03:31,593 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 48 predicate places. [2024-11-09 15:03:31,593 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 31 transitions, 276 flow [2024-11-09 15:03:31,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:31,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:31,594 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1] [2024-11-09 15:03:31,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:03:31,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:31,795 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:31,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:31,795 INFO L85 PathProgramCache]: Analyzing trace with hash 268360218, now seen corresponding path program 3 times [2024-11-09 15:03:31,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:31,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430501256] [2024-11-09 15:03:31,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:31,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:32,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:32,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430501256] [2024-11-09 15:03:32,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430501256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:03:32,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744225406] [2024-11-09 15:03:32,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 15:03:32,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:32,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:03:32,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:03:32,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:03:32,256 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 15:03:32,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:03:32,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:03:32,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:03:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:03:32,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:03:32,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744225406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:32,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:03:32,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 15:03:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386112772] [2024-11-09 15:03:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:32,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:03:32,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:03:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:32,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 25 [2024-11-09 15:03:32,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 31 transitions, 276 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:32,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 25 [2024-11-09 15:03:32,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:32,353 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-09 15:03:32,354 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-11-09 15:03:32,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 40 events. 2/40 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 2 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 155. Up to 23 conditions per place. [2024-11-09 15:03:32,354 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 24 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2024-11-09 15:03:32,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 30 transitions, 330 flow [2024-11-09 15:03:32,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:03:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:03:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2024-11-09 15:03:32,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25 [2024-11-09 15:03:32,357 INFO L175 Difference]: Start difference. First operand has 59 places, 31 transitions, 276 flow. Second operand 4 states and 25 transitions. [2024-11-09 15:03:32,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 30 transitions, 330 flow [2024-11-09 15:03:32,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 30 transitions, 287 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-09 15:03:32,362 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 239 flow [2024-11-09 15:03:32,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=48, PETRI_TRANSITIONS=30} [2024-11-09 15:03:32,363 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 37 predicate places. [2024-11-09 15:03:32,363 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 239 flow [2024-11-09 15:03:32,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:32,364 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1] [2024-11-09 15:03:32,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:03:32,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:03:32,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-11-09 15:03:32,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:32,565 INFO L85 PathProgramCache]: Analyzing trace with hash -270767323, now seen corresponding path program 1 times [2024-11-09 15:03:32,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:32,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281189345] [2024-11-09 15:03:32,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:32,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 15:03:32,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:32,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281189345] [2024-11-09 15:03:32,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281189345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:32,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:32,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:03:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333730143] [2024-11-09 15:03:32,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:32,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:32,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:32,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:32,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:32,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2024-11-09 15:03:32,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 30 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:32,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2024-11-09 15:03:32,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:32,756 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-09 15:03:32,756 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-09 15:03:32,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 39 events. 2/39 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 2 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 135. Up to 26 conditions per place. [2024-11-09 15:03:32,757 INFO L140 encePairwiseOnDemand]: 22/25 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-09 15:03:32,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 29 transitions, 289 flow [2024-11-09 15:03:32,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2024-11-09 15:03:32,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29333333333333333 [2024-11-09 15:03:32,761 INFO L175 Difference]: Start difference. First operand has 48 places, 30 transitions, 239 flow. Second operand 3 states and 22 transitions. [2024-11-09 15:03:32,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 29 transitions, 289 flow [2024-11-09 15:03:32,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 29 transitions, 279 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:32,765 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-09 15:03:32,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-09 15:03:32,766 INFO L277 CegarLoopForPetriNet]: 11 programPoint places, 35 predicate places. [2024-11-09 15:03:32,766 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-09 15:03:32,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:03:32,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2024-11-09 15:03:32,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2024-11-09 15:03:32,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2024-11-09 15:03:32,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2024-11-09 15:03:32,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-09 15:03:32,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:03:32,770 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2024-11-09 15:03:32,774 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:03:32,774 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:03:32,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:03:32 BasicIcfg [2024-11-09 15:03:32,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:03:32,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:03:32,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:03:32,781 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:03:32,781 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:03:26" (3/4) ... [2024-11-09 15:03:32,783 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:03:32,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-09 15:03:32,794 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 135 nodes and edges [2024-11-09 15:03:32,795 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-09 15:03:32,795 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 15:03:32,795 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 15:03:32,883 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:03:32,883 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:03:32,883 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:03:32,884 INFO L158 Benchmark]: Toolchain (without parser) took 8330.83ms. Allocated memory was 155.2MB in the beginning and 285.2MB in the end (delta: 130.0MB). Free memory was 79.7MB in the beginning and 230.1MB in the end (delta: -150.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:03:32,884 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 105.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:03:32,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.84ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 79.5MB in the beginning and 148.5MB in the end (delta: -68.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-11-09 15:03:32,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.71ms. Allocated memory is still 207.6MB. Free memory was 148.5MB in the beginning and 145.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:32,884 INFO L158 Benchmark]: Boogie Preprocessor took 69.30ms. Allocated memory is still 207.6MB. Free memory was 145.1MB in the beginning and 141.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:32,885 INFO L158 Benchmark]: RCFGBuilder took 1177.26ms. Allocated memory is still 207.6MB. Free memory was 141.1MB in the beginning and 137.6MB in the end (delta: 3.5MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2024-11-09 15:03:32,885 INFO L158 Benchmark]: TraceAbstraction took 6089.36ms. Allocated memory was 207.6MB in the beginning and 285.2MB in the end (delta: 77.6MB). Free memory was 137.6MB in the beginning and 235.3MB in the end (delta: -97.8MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:32,885 INFO L158 Benchmark]: Witness Printer took 102.80ms. Allocated memory is still 285.2MB. Free memory was 235.3MB in the beginning and 230.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 15:03:32,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 105.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.84ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 79.5MB in the beginning and 148.5MB in the end (delta: -68.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.71ms. Allocated memory is still 207.6MB. Free memory was 148.5MB in the beginning and 145.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.30ms. Allocated memory is still 207.6MB. Free memory was 145.1MB in the beginning and 141.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1177.26ms. Allocated memory is still 207.6MB. Free memory was 141.1MB in the beginning and 137.6MB in the end (delta: 3.5MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6089.36ms. Allocated memory was 207.6MB in the beginning and 285.2MB in the end (delta: 77.6MB). Free memory was 137.6MB in the beginning and 235.3MB in the end (delta: -97.8MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. * Witness Printer took 102.80ms. Allocated memory is still 285.2MB. Free memory was 235.3MB in the beginning and 230.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1260]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1260]: 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, 31 locations, 5 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: 5.9s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 7 mSDtfsCounter, 345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 109 SyntacticMatches, 11 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=7, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 249 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 557 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1699 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 469/722 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:03:32,918 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