./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.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/28-race_reach_70-funloop_racefree.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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:05:50,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:05:50,683 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:05:50,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:05:50,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:05:50,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:05:50,708 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:05:50,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:05:50,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:05:50,709 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:05:50,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:05:50,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:05:50,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:05:50,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:05:50,710 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:05:50,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:05:50,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:05:50,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:05:50,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:05:50,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:05:50,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:05:50,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:05:50,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:05:50,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:05:50,713 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:05:50,714 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:05:50,714 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:05:50,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:05:50,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:05:50,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:05:50,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:05:50,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:05:50,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:05:50,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:05:50,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:05:50,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:05:50,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:05:50,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:05:50,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:05:50,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:05:50,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:05:50,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:05:50,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:05:50,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:05:50,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-11-09 15:05:50,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:05:50,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:05:50,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:05:50,975 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:05:50,976 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:05:50,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-09 15:05:52,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:05:52,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:05:52,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-09 15:05:52,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b133d8d2/67b232d893754608bcb8b8ce14dbd8cf/FLAG346753425 [2024-11-09 15:05:52,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b133d8d2/67b232d893754608bcb8b8ce14dbd8cf [2024-11-09 15:05:52,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:05:52,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:05:52,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:05:52,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:05:52,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:05:52,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:05:52" (1/1) ... [2024-11-09 15:05:52,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1188fe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:52, skipping insertion in model container [2024-11-09 15:05:52,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:05:52" (1/1) ... [2024-11-09 15:05:52,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:05:53,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:05:53,181 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:05:53,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:05:53,275 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:05:53,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53 WrapperNode [2024-11-09 15:05:53,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:05:53,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:05:53,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:05:53,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:05:53,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,319 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 299 [2024-11-09 15:05:53,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:05:53,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:05:53,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:05:53,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:05:53,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,334 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,361 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 2, 70]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 0, 60]. The 5 writes are split as follows [0, 0, 1, 4]. [2024-11-09 15:05:53,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:05:53,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:05:53,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:05:53,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:05:53,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (1/1) ... [2024-11-09 15:05:53,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:05:53,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:05:53,414 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 15:05:53,419 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 15:05:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 15:05:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 15:05:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:05:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:05:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:05:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 15:05:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:05:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 15:05:53,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:05:53,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:05:53,455 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 15:05:53,560 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:05:53,562 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:05:53,833 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:05:53,833 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:05:54,181 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:05:54,182 INFO L316 CfgBuilder]: Removed 25 assume(true) statements. [2024-11-09 15:05:54,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:05:54 BoogieIcfgContainer [2024-11-09 15:05:54,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:05:54,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:05:54,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:05:54,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:05:54,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:05:52" (1/3) ... [2024-11-09 15:05:54,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bd47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:05:54, skipping insertion in model container [2024-11-09 15:05:54,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:05:53" (2/3) ... [2024-11-09 15:05:54,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bd47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:05:54, skipping insertion in model container [2024-11-09 15:05:54,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:05:54" (3/3) ... [2024-11-09 15:05:54,191 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-11-09 15:05:54,205 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:05:54,205 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 15:05:54,205 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:05:54,243 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 15:05:54,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 123 transitions, 253 flow [2024-11-09 15:05:54,308 INFO L124 PetriNetUnfolderBase]: 38/176 cut-off events. [2024-11-09 15:05:54,308 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:05:54,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 176 events. 38/176 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 736 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2024-11-09 15:05:54,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 123 transitions, 253 flow [2024-11-09 15:05:54,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 122 transitions, 251 flow [2024-11-09 15:05:54,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:05:54,335 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;@534769c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:05:54,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-09 15:05:54,339 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:05:54,339 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:05:54,339 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:05:54,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:54,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:05:54,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:54,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:54,346 INFO L85 PathProgramCache]: Analyzing trace with hash 763913, now seen corresponding path program 1 times [2024-11-09 15:05:54,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:54,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471086411] [2024-11-09 15:05:54,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:54,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:54,639 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 15:05:54,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:54,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471086411] [2024-11-09 15:05:54,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471086411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:05:54,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:05:54,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:05:54,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78817770] [2024-11-09 15:05:54,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:05:54,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:05:54,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:54,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:05:54,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:05:54,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2024-11-09 15:05:54,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 15:05:54,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:54,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2024-11-09 15:05:54,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:55,106 INFO L124 PetriNetUnfolderBase]: 575/1803 cut-off events. [2024-11-09 15:05:55,106 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:05:55,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 1803 events. 575/1803 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12744 event pairs, 480 based on Foata normal form. 291/1823 useless extension candidates. Maximal degree in co-relation 2810. Up to 1100 conditions per place. [2024-11-09 15:05:55,122 INFO L140 encePairwiseOnDemand]: 97/123 looper letters, 53 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-11-09 15:05:55,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 104 transitions, 327 flow [2024-11-09 15:05:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:05:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:05:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 271 transitions. [2024-11-09 15:05:55,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5508130081300813 [2024-11-09 15:05:55,137 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 251 flow. Second operand 4 states and 271 transitions. [2024-11-09 15:05:55,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 104 transitions, 327 flow [2024-11-09 15:05:55,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:05:55,144 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 235 flow [2024-11-09 15:05:55,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-11-09 15:05:55,151 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-11-09 15:05:55,151 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 235 flow [2024-11-09 15:05:55,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 15:05:55,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:55,152 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:05:55,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:05:55,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:55,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1283705744, now seen corresponding path program 1 times [2024-11-09 15:05:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923429889] [2024-11-09 15:05:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:55,303 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 15:05:55,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:55,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923429889] [2024-11-09 15:05:55,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923429889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:05:55,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713692857] [2024-11-09 15:05:55,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:55,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:05:55,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:05:55,307 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 15:05:55,309 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 15:05:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:55,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:05:55,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:05:55,420 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 15:05:55,421 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:05:55,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713692857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:05:55,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:05:55,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:05:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032435856] [2024-11-09 15:05:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:05:55,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:05:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:55,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:05:55,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:05:55,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2024-11-09 15:05:55,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 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 15:05:55,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:55,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2024-11-09 15:05:55,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:55,691 INFO L124 PetriNetUnfolderBase]: 575/1802 cut-off events. [2024-11-09 15:05:55,691 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:05:55,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 1802 events. 575/1802 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12769 event pairs, 480 based on Foata normal form. 1/1532 useless extension candidates. Maximal degree in co-relation 2902. Up to 1095 conditions per place. [2024-11-09 15:05:55,697 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 49 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-09 15:05:55,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 341 flow [2024-11-09 15:05:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:05:55,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:05:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 344 transitions. [2024-11-09 15:05:55,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245 [2024-11-09 15:05:55,701 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 235 flow. Second operand 6 states and 344 transitions. [2024-11-09 15:05:55,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 341 flow [2024-11-09 15:05:55,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:05:55,703 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 241 flow [2024-11-09 15:05:55,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2024-11-09 15:05:55,704 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2024-11-09 15:05:55,704 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 241 flow [2024-11-09 15:05:55,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 6 states have internal predecessors, (293), 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 15:05:55,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:55,705 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:05:55,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:05:55,908 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 15:05:55,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:55,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1140173217, now seen corresponding path program 1 times [2024-11-09 15:05:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:55,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414618522] [2024-11-09 15:05:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:55,941 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 15:05:55,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:55,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414618522] [2024-11-09 15:05:55,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414618522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:05:55,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:05:55,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:05:55,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819771987] [2024-11-09 15:05:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:05:55,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:05:55,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:05:55,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:05:55,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2024-11-09 15:05:55,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 15:05:55,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:55,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2024-11-09 15:05:55,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:56,112 INFO L124 PetriNetUnfolderBase]: 575/1801 cut-off events. [2024-11-09 15:05:56,112 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 15:05:56,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2922 conditions, 1801 events. 575/1801 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12743 event pairs, 480 based on Foata normal form. 1/1532 useless extension candidates. Maximal degree in co-relation 2898. Up to 1098 conditions per place. [2024-11-09 15:05:56,120 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 50 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-09 15:05:56,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 345 flow [2024-11-09 15:05:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:05:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:05:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-11-09 15:05:56,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5338753387533876 [2024-11-09 15:05:56,122 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 241 flow. Second operand 3 states and 197 transitions. [2024-11-09 15:05:56,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 345 flow [2024-11-09 15:05:56,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 323 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-09 15:05:56,125 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 223 flow [2024-11-09 15:05:56,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2024-11-09 15:05:56,126 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2024-11-09 15:05:56,126 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 223 flow [2024-11-09 15:05:56,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 15:05:56,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:56,126 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:05:56,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:05:56,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:56,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash 489313452, now seen corresponding path program 1 times [2024-11-09 15:05:56,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:56,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409732757] [2024-11-09 15:05:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:56,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:56,176 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 15:05:56,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:56,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409732757] [2024-11-09 15:05:56,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409732757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:05:56,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491825016] [2024-11-09 15:05:56,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:56,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:05:56,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:05:56,179 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 15:05:56,181 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 15:05:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:56,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:05:56,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:05:56,275 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 15:05:56,276 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:05:56,306 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 15:05:56,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491825016] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:05:56,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:05:56,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:05:56,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171837417] [2024-11-09 15:05:56,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:05:56,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:05:56,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:05:56,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:05:56,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2024-11-09 15:05:56,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 223 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 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 15:05:56,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:56,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2024-11-09 15:05:56,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:56,575 INFO L124 PetriNetUnfolderBase]: 575/1805 cut-off events. [2024-11-09 15:05:56,576 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-09 15:05:56,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2925 conditions, 1805 events. 575/1805 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12730 event pairs, 480 based on Foata normal form. 2/1538 useless extension candidates. Maximal degree in co-relation 2891. Up to 1096 conditions per place. [2024-11-09 15:05:56,583 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 50 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-11-09 15:05:56,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 105 transitions, 352 flow [2024-11-09 15:05:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:05:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:05:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 395 transitions. [2024-11-09 15:05:56,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45876887340301975 [2024-11-09 15:05:56,588 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 223 flow. Second operand 7 states and 395 transitions. [2024-11-09 15:05:56,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 105 transitions, 352 flow [2024-11-09 15:05:56,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 105 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:05:56,591 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 249 flow [2024-11-09 15:05:56,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2024-11-09 15:05:56,592 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2024-11-09 15:05:56,592 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 249 flow [2024-11-09 15:05:56,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 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 15:05:56,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:56,592 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-09 15:05:56,607 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 15:05:56,793 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 15:05:56,794 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:56,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1495311540, now seen corresponding path program 2 times [2024-11-09 15:05:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:56,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317073224] [2024-11-09 15:05:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:56,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:56,862 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 15:05:56,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:56,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317073224] [2024-11-09 15:05:56,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317073224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:05:56,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:05:56,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:05:56,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731574485] [2024-11-09 15:05:56,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:05:56,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:05:56,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:56,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:05:56,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:05:56,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 123 [2024-11-09 15:05:56,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 15:05:56,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:56,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 123 [2024-11-09 15:05:56,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:57,132 INFO L124 PetriNetUnfolderBase]: 595/1764 cut-off events. [2024-11-09 15:05:57,133 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 15:05:57,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 1764 events. 595/1764 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12352 event pairs, 138 based on Foata normal form. 21/1539 useless extension candidates. Maximal degree in co-relation 2882. Up to 1067 conditions per place. [2024-11-09 15:05:57,140 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 98 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2024-11-09 15:05:57,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 146 transitions, 533 flow [2024-11-09 15:05:57,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:05:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:05:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-09 15:05:57,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-09 15:05:57,142 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 249 flow. Second operand 4 states and 287 transitions. [2024-11-09 15:05:57,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 146 transitions, 533 flow [2024-11-09 15:05:57,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 146 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:05:57,145 INFO L231 Difference]: Finished difference. Result has 109 places, 103 transitions, 251 flow [2024-11-09 15:05:57,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=251, PETRI_PLACES=109, PETRI_TRANSITIONS=103} [2024-11-09 15:05:57,146 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2024-11-09 15:05:57,146 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 103 transitions, 251 flow [2024-11-09 15:05:57,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 15:05:57,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:57,147 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:05:57,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:05:57,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:57,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 575544587, now seen corresponding path program 1 times [2024-11-09 15:05:57,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:57,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24723974] [2024-11-09 15:05:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:57,258 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 15:05:57,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24723974] [2024-11-09 15:05:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24723974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:05:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611580195] [2024-11-09 15:05:57,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:57,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:05:57,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:05:57,264 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 15:05:57,271 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 15:05:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:57,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:05:57,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:05:57,388 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 15:05:57,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:05:57,476 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 15:05:57,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611580195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:05:57,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:05:57,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-09 15:05:57,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306353416] [2024-11-09 15:05:57,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:05:57,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 15:05:57,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 15:05:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 15:05:57,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2024-11-09 15:05:57,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 103 transitions, 251 flow. Second operand has 18 states, 18 states have (on average 49.22222222222222) internal successors, (886), 18 states have internal predecessors, (886), 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 15:05:57,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:57,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2024-11-09 15:05:57,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:57,829 INFO L124 PetriNetUnfolderBase]: 573/1766 cut-off events. [2024-11-09 15:05:57,829 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-09 15:05:57,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 1766 events. 573/1766 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12226 event pairs, 480 based on Foata normal form. 4/1527 useless extension candidates. Maximal degree in co-relation 2865. Up to 1074 conditions per place. [2024-11-09 15:05:57,836 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 50 selfloop transitions, 15 changer transitions 0/111 dead transitions. [2024-11-09 15:05:57,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 111 transitions, 429 flow [2024-11-09 15:05:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 15:05:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 15:05:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 789 transitions. [2024-11-09 15:05:57,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4276422764227642 [2024-11-09 15:05:57,839 INFO L175 Difference]: Start difference. First operand has 109 places, 103 transitions, 251 flow. Second operand 15 states and 789 transitions. [2024-11-09 15:05:57,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 111 transitions, 429 flow [2024-11-09 15:05:57,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 111 transitions, 423 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:05:57,843 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 342 flow [2024-11-09 15:05:57,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=342, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2024-11-09 15:05:57,844 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 24 predicate places. [2024-11-09 15:05:57,844 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 342 flow [2024-11-09 15:05:57,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 49.22222222222222) internal successors, (886), 18 states have internal predecessors, (886), 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 15:05:57,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:57,845 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:05:57,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:05:58,045 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 15:05:58,045 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:58,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1227919413, now seen corresponding path program 2 times [2024-11-09 15:05:58,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:58,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562602190] [2024-11-09 15:05:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:58,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:58,400 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 15:05:58,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562602190] [2024-11-09 15:05:58,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562602190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:05:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940594463] [2024-11-09 15:05:58,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:05:58,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:05:58,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:05:58,405 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 15:05:58,406 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 15:05:58,483 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:05:58,484 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:05:58,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:05:58,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:05:58,557 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 15:05:58,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:05:58,743 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 15:05:58,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940594463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:05:58,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:05:58,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-09 15:05:58,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484320657] [2024-11-09 15:05:58,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:05:58,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:05:58,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:58,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:05:58,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 15:05:58,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2024-11-09 15:05:58,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 342 flow. Second operand has 23 states, 23 states have (on average 49.21739130434783) internal successors, (1132), 23 states have internal predecessors, (1132), 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 15:05:58,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:58,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2024-11-09 15:05:58,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:05:59,292 INFO L124 PetriNetUnfolderBase]: 573/1775 cut-off events. [2024-11-09 15:05:59,293 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-09 15:05:59,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1775 events. 573/1775 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12227 event pairs, 480 based on Foata normal form. 3/1535 useless extension candidates. Maximal degree in co-relation 2846. Up to 1074 conditions per place. [2024-11-09 15:05:59,302 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 50 selfloop transitions, 21 changer transitions 0/117 dead transitions. [2024-11-09 15:05:59,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 117 transitions, 538 flow [2024-11-09 15:05:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 15:05:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 15:05:59,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1082 transitions. [2024-11-09 15:05:59,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.418892760356175 [2024-11-09 15:05:59,307 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 342 flow. Second operand 21 states and 1082 transitions. [2024-11-09 15:05:59,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 117 transitions, 538 flow [2024-11-09 15:05:59,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 117 transitions, 528 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:05:59,311 INFO L231 Difference]: Finished difference. Result has 143 places, 117 transitions, 443 flow [2024-11-09 15:05:59,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=443, PETRI_PLACES=143, PETRI_TRANSITIONS=117} [2024-11-09 15:05:59,312 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 43 predicate places. [2024-11-09 15:05:59,312 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 117 transitions, 443 flow [2024-11-09 15:05:59,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 49.21739130434783) internal successors, (1132), 23 states have internal predecessors, (1132), 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 15:05:59,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:59,315 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:05:59,330 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 15:05:59,518 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 15:05:59,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-09 15:05:59,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1404602748, now seen corresponding path program 3 times [2024-11-09 15:05:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:59,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618377192] [2024-11-09 15:05:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:59,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:05:59,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:05:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:05:59,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:05:59,605 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 15:05:59,607 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-09 15:05:59,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-09 15:05:59,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-09 15:05:59,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-09 15:05:59,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-09 15:05:59,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-09 15:05:59,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-09 15:05:59,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-09 15:05:59,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-09 15:05:59,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-09 15:05:59,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-09 15:05:59,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-09 15:05:59,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-11-09 15:05:59,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-11-09 15:05:59,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-11-09 15:05:59,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-09 15:05:59,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-09 15:05:59,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-09 15:05:59,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-09 15:05:59,614 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-09 15:05:59,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-09 15:05:59,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-09 15:05:59,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-09 15:05:59,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-09 15:05:59,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-09 15:05:59,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:05:59,616 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-09 15:05:59,618 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 15:05:59,619 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 15:05:59,657 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:05:59,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 175 transitions, 366 flow [2024-11-09 15:05:59,685 INFO L124 PetriNetUnfolderBase]: 64/300 cut-off events. [2024-11-09 15:05:59,685 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 15:05:59,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 300 events. 64/300 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1506 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 178. Up to 12 conditions per place. [2024-11-09 15:05:59,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 175 transitions, 366 flow [2024-11-09 15:05:59,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 175 transitions, 366 flow [2024-11-09 15:05:59,693 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:05:59,693 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;@534769c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:05:59,693 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-09 15:05:59,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:05:59,695 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:05:59,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:05:59,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:05:59,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:05:59,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:05:59,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:05:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash 937688, now seen corresponding path program 1 times [2024-11-09 15:05:59,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:05:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248776450] [2024-11-09 15:05:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:05:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:05:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:05:59,732 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 15:05:59,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:05:59,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248776450] [2024-11-09 15:05:59,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248776450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:05:59,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:05:59,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:05:59,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321763205] [2024-11-09 15:05:59,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:05:59,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:05:59,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:05:59,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:05:59,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:05:59,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:05:59,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 175 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 15:05:59,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:05:59,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:05:59,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:03,261 INFO L124 PetriNetUnfolderBase]: 24270/52769 cut-off events. [2024-11-09 15:06:03,262 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-11-09 15:06:03,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88276 conditions, 52769 events. 24270/52769 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566956 event pairs, 21160 based on Foata normal form. 9793/54962 useless extension candidates. Maximal degree in co-relation 65647. Up to 35393 conditions per place. [2024-11-09 15:06:03,563 INFO L140 encePairwiseOnDemand]: 139/175 looper letters, 77 selfloop transitions, 3 changer transitions 0/147 dead transitions. [2024-11-09 15:06:03,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 470 flow [2024-11-09 15:06:03,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:06:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:06:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 381 transitions. [2024-11-09 15:06:03,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5442857142857143 [2024-11-09 15:06:03,565 INFO L175 Difference]: Start difference. First operand has 141 places, 175 transitions, 366 flow. Second operand 4 states and 381 transitions. [2024-11-09 15:06:03,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 470 flow [2024-11-09 15:06:03,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 147 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:06:03,568 INFO L231 Difference]: Finished difference. Result has 146 places, 147 transitions, 330 flow [2024-11-09 15:06:03,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=146, PETRI_TRANSITIONS=147} [2024-11-09 15:06:03,569 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2024-11-09 15:06:03,570 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 147 transitions, 330 flow [2024-11-09 15:06:03,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 15:06:03,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:03,570 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:06:03,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:06:03,570 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:03,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2129124048, now seen corresponding path program 1 times [2024-11-09 15:06:03,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:03,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531259711] [2024-11-09 15:06:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:03,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:03,628 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 15:06:03,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:03,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531259711] [2024-11-09 15:06:03,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531259711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:06:03,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516654814] [2024-11-09 15:06:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:03,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:03,634 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 15:06:03,639 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 15:06:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:03,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:06:03,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:06:03,739 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 15:06:03,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:06:03,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516654814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:03,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:06:03,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:06:03,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355252083] [2024-11-09 15:06:03,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:03,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:06:03,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:03,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:06:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:06:03,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:06:03,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 147 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 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 15:06:03,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:03,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:06:03,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:07,120 INFO L124 PetriNetUnfolderBase]: 24270/52768 cut-off events. [2024-11-09 15:06:07,120 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2024-11-09 15:06:07,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88286 conditions, 52768 events. 24270/52768 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566907 event pairs, 21160 based on Foata normal form. 1/45169 useless extension candidates. Maximal degree in co-relation 88267. Up to 35388 conditions per place. [2024-11-09 15:06:07,424 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 73 selfloop transitions, 6 changer transitions 0/146 dead transitions. [2024-11-09 15:06:07,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 484 flow [2024-11-09 15:06:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:06:07,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:06:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2024-11-09 15:06:07,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45904761904761904 [2024-11-09 15:06:07,426 INFO L175 Difference]: Start difference. First operand has 146 places, 147 transitions, 330 flow. Second operand 6 states and 482 transitions. [2024-11-09 15:06:07,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 484 flow [2024-11-09 15:06:07,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:06:07,429 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 336 flow [2024-11-09 15:06:07,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2024-11-09 15:06:07,431 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places. [2024-11-09 15:06:07,432 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 336 flow [2024-11-09 15:06:07,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 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 15:06:07,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:07,432 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:06:07,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 15:06:07,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 15:06:07,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:07,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1578335056, now seen corresponding path program 1 times [2024-11-09 15:06:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:07,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405751984] [2024-11-09 15:06:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:07,670 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 15:06:07,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405751984] [2024-11-09 15:06:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405751984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:06:07,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:06:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168128904] [2024-11-09 15:06:07,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:07,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:06:07,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:07,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:06:07,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:06:07,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:06:07,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 15:06:07,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:07,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:06:07,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:10,766 INFO L124 PetriNetUnfolderBase]: 24270/52767 cut-off events. [2024-11-09 15:06:10,766 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2024-11-09 15:06:10,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88288 conditions, 52767 events. 24270/52767 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566968 event pairs, 21160 based on Foata normal form. 1/45169 useless extension candidates. Maximal degree in co-relation 88263. Up to 35391 conditions per place. [2024-11-09 15:06:11,042 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 74 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2024-11-09 15:06:11,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 488 flow [2024-11-09 15:06:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:06:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:06:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2024-11-09 15:06:11,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5295238095238095 [2024-11-09 15:06:11,044 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 336 flow. Second operand 3 states and 278 transitions. [2024-11-09 15:06:11,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 488 flow [2024-11-09 15:06:11,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 466 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-09 15:06:11,048 INFO L231 Difference]: Finished difference. Result has 144 places, 145 transitions, 318 flow [2024-11-09 15:06:11,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=144, PETRI_TRANSITIONS=145} [2024-11-09 15:06:11,049 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places. [2024-11-09 15:06:11,049 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 145 transitions, 318 flow [2024-11-09 15:06:11,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 15:06:11,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:11,049 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:11,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:06:11,050 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:11,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash -656967283, now seen corresponding path program 1 times [2024-11-09 15:06:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:11,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658182110] [2024-11-09 15:06:11,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:11,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:11,097 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 15:06:11,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:11,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658182110] [2024-11-09 15:06:11,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658182110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:06:11,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051281664] [2024-11-09 15:06:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:11,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:11,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:11,102 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:06:11,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:06:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:11,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:06:11,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:06:11,186 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 15:06:11,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:06:11,206 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 15:06:11,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051281664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:06:11,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:06:11,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:06:11,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528525571] [2024-11-09 15:06:11,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:06:11,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:06:11,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:11,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:06:11,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:06:11,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:06:11,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 145 transitions, 318 flow. Second operand has 10 states, 10 states have (on average 68.3) internal successors, (683), 10 states have internal predecessors, (683), 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 15:06:11,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:11,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:06:11,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:15,360 INFO L124 PetriNetUnfolderBase]: 24270/52771 cut-off events. [2024-11-09 15:06:15,361 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-11-09 15:06:15,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88291 conditions, 52771 events. 24270/52771 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1462. Compared 566952 event pairs, 21160 based on Foata normal form. 2/45175 useless extension candidates. Maximal degree in co-relation 88256. Up to 35389 conditions per place. [2024-11-09 15:06:15,595 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 74 selfloop transitions, 7 changer transitions 0/148 dead transitions. [2024-11-09 15:06:15,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 148 transitions, 495 flow [2024-11-09 15:06:15,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:06:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:06:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 552 transitions. [2024-11-09 15:06:15,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4506122448979592 [2024-11-09 15:06:15,597 INFO L175 Difference]: Start difference. First operand has 144 places, 145 transitions, 318 flow. Second operand 7 states and 552 transitions. [2024-11-09 15:06:15,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 148 transitions, 495 flow [2024-11-09 15:06:15,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 148 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:06:15,600 INFO L231 Difference]: Finished difference. Result has 150 places, 148 transitions, 344 flow [2024-11-09 15:06:15,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=344, PETRI_PLACES=150, PETRI_TRANSITIONS=148} [2024-11-09 15:06:15,600 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2024-11-09 15:06:15,600 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 148 transitions, 344 flow [2024-11-09 15:06:15,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.3) internal successors, (683), 10 states have internal predecessors, (683), 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 15:06:15,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:15,601 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:15,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:06:15,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:15,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:15,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1253243533, now seen corresponding path program 2 times [2024-11-09 15:06:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:15,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728759532] [2024-11-09 15:06:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:15,844 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 15:06:15,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:15,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728759532] [2024-11-09 15:06:15,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728759532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:15,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:06:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:06:15,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058277574] [2024-11-09 15:06:15,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:15,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:06:15,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:06:15,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:06:15,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 175 [2024-11-09 15:06:15,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 148 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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 15:06:15,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:15,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 175 [2024-11-09 15:06:15,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:19,283 INFO L124 PetriNetUnfolderBase]: 26447/54738 cut-off events. [2024-11-09 15:06:19,283 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-09 15:06:19,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93631 conditions, 54738 events. 26447/54738 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 1465. Compared 570605 event pairs, 11420 based on Foata normal form. 21/47111 useless extension candidates. Maximal degree in co-relation 93591. Up to 38696 conditions per place. [2024-11-09 15:06:19,555 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 126 selfloop transitions, 3 changer transitions 0/193 dead transitions. [2024-11-09 15:06:19,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 193 transitions, 692 flow [2024-11-09 15:06:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:06:19,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:06:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2024-11-09 15:06:19,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5585714285714286 [2024-11-09 15:06:19,557 INFO L175 Difference]: Start difference. First operand has 150 places, 148 transitions, 344 flow. Second operand 4 states and 391 transitions. [2024-11-09 15:06:19,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 193 transitions, 692 flow [2024-11-09 15:06:19,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 193 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:06:19,560 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 364 flow [2024-11-09 15:06:19,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2024-11-09 15:06:19,560 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 12 predicate places. [2024-11-09 15:06:19,561 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 364 flow [2024-11-09 15:06:19,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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 15:06:19,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:19,561 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:19,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:06:19,561 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:19,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:19,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1521693614, now seen corresponding path program 1 times [2024-11-09 15:06:19,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:19,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224503155] [2024-11-09 15:06:19,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:19,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:06:19,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:19,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224503155] [2024-11-09 15:06:19,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224503155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:06:19,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859888719] [2024-11-09 15:06:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:19,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:19,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:19,708 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:06:19,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:06:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:19,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:06:19,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:06:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:06:19,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:06:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:06:19,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859888719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:06:19,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:06:19,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-09 15:06:19,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853614770] [2024-11-09 15:06:19,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:06:19,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 15:06:19,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 15:06:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 15:06:19,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:06:19,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 364 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 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 15:06:19,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:19,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:06:19,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:23,614 INFO L124 PetriNetUnfolderBase]: 24267/53404 cut-off events. [2024-11-09 15:06:23,614 INFO L125 PetriNetUnfolderBase]: For 1130/1988 co-relation queries the response was YES. [2024-11-09 15:06:23,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89879 conditions, 53404 events. 24267/53404 cut-off events. For 1130/1988 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 578477 event pairs, 21160 based on Foata normal form. 23/46152 useless extension candidates. Maximal degree in co-relation 89802. Up to 35346 conditions per place. [2024-11-09 15:06:24,107 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 75 selfloop transitions, 15 changer transitions 0/158 dead transitions. [2024-11-09 15:06:24,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 158 transitions, 592 flow [2024-11-09 15:06:24,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 15:06:24,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 15:06:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1098 transitions. [2024-11-09 15:06:24,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41828571428571426 [2024-11-09 15:06:24,112 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 364 flow. Second operand 15 states and 1098 transitions. [2024-11-09 15:06:24,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 158 transitions, 592 flow [2024-11-09 15:06:24,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 158 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:06:24,116 INFO L231 Difference]: Finished difference. Result has 170 places, 158 transitions, 459 flow [2024-11-09 15:06:24,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=459, PETRI_PLACES=170, PETRI_TRANSITIONS=158} [2024-11-09 15:06:24,116 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 29 predicate places. [2024-11-09 15:06:24,117 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 158 transitions, 459 flow [2024-11-09 15:06:24,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 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 15:06:24,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:24,117 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:24,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:06:24,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:24,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:24,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:24,319 INFO L85 PathProgramCache]: Analyzing trace with hash -389828178, now seen corresponding path program 2 times [2024-11-09 15:06:24,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:24,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877484586] [2024-11-09 15:06:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:06:24,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:24,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877484586] [2024-11-09 15:06:24,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877484586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:06:24,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000505833] [2024-11-09 15:06:24,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:06:24,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:24,545 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:06:24,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:06:24,636 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:06:24,637 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:06:24,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:06:24,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:06:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:06:24,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:06:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:06:24,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000505833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:06:24,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:06:24,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-09 15:06:24,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091997778] [2024-11-09 15:06:24,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:06:24,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 15:06:24,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 15:06:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 15:06:24,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:06:24,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 158 transitions, 459 flow. Second operand has 23 states, 23 states have (on average 68.26086956521739) internal successors, (1570), 23 states have internal predecessors, (1570), 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 15:06:24,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:24,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:06:24,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:28,928 INFO L124 PetriNetUnfolderBase]: 24267/53413 cut-off events. [2024-11-09 15:06:28,929 INFO L125 PetriNetUnfolderBase]: For 1211/2069 co-relation queries the response was YES. [2024-11-09 15:06:29,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89922 conditions, 53413 events. 24267/53413 cut-off events. For 1211/2069 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 578486 event pairs, 21160 based on Foata normal form. 22/46160 useless extension candidates. Maximal degree in co-relation 89785. Up to 35346 conditions per place. [2024-11-09 15:06:29,322 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 75 selfloop transitions, 21 changer transitions 0/164 dead transitions. [2024-11-09 15:06:29,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 164 transitions, 705 flow [2024-11-09 15:06:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 15:06:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 15:06:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1505 transitions. [2024-11-09 15:06:29,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2024-11-09 15:06:29,326 INFO L175 Difference]: Start difference. First operand has 170 places, 158 transitions, 459 flow. Second operand 21 states and 1505 transitions. [2024-11-09 15:06:29,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 164 transitions, 705 flow [2024-11-09 15:06:29,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 164 transitions, 695 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:06:29,330 INFO L231 Difference]: Finished difference. Result has 189 places, 164 transitions, 560 flow [2024-11-09 15:06:29,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=560, PETRI_PLACES=189, PETRI_TRANSITIONS=164} [2024-11-09 15:06:29,330 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 48 predicate places. [2024-11-09 15:06:29,330 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 164 transitions, 560 flow [2024-11-09 15:06:29,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 68.26086956521739) internal successors, (1570), 23 states have internal predecessors, (1570), 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 15:06:29,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:29,331 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:29,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:06:29,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 15:06:29,536 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:29,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash 45669206, now seen corresponding path program 3 times [2024-11-09 15:06:29,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:29,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004341578] [2024-11-09 15:06:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:29,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:06:29,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004341578] [2024-11-09 15:06:29,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004341578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:06:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720678498] [2024-11-09 15:06:29,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 15:06:29,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:29,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:29,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:06:29,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 15:06:29,965 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 15:06:29,965 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:06:29,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:06:29,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:06:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:06:29,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:06:29,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720678498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:29,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:06:29,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 15:06:29,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464453120] [2024-11-09 15:06:29,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:29,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:06:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:29,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:06:29,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:06:30,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 175 [2024-11-09 15:06:30,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 164 transitions, 560 flow. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 15:06:30,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:30,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 175 [2024-11-09 15:06:30,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:33,935 INFO L124 PetriNetUnfolderBase]: 26416/50381 cut-off events. [2024-11-09 15:06:33,935 INFO L125 PetriNetUnfolderBase]: For 1472/1472 co-relation queries the response was YES. [2024-11-09 15:06:34,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91378 conditions, 50381 events. 26416/50381 cut-off events. For 1472/1472 co-relation queries the response was YES. Maximal size of possible extension queue 1324. Compared 489316 event pairs, 2223 based on Foata normal form. 441/44247 useless extension candidates. Maximal degree in co-relation 91217. Up to 31059 conditions per place. [2024-11-09 15:06:34,369 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 178 selfloop transitions, 6 changer transitions 0/247 dead transitions. [2024-11-09 15:06:34,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 247 transitions, 1092 flow [2024-11-09 15:06:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:06:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:06:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2024-11-09 15:06:34,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6057142857142858 [2024-11-09 15:06:34,371 INFO L175 Difference]: Start difference. First operand has 189 places, 164 transitions, 560 flow. Second operand 4 states and 424 transitions. [2024-11-09 15:06:34,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 247 transitions, 1092 flow [2024-11-09 15:06:34,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 247 transitions, 1049 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-09 15:06:34,400 INFO L231 Difference]: Finished difference. Result has 178 places, 163 transitions, 525 flow [2024-11-09 15:06:34,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=525, PETRI_PLACES=178, PETRI_TRANSITIONS=163} [2024-11-09 15:06:34,402 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 37 predicate places. [2024-11-09 15:06:34,402 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 163 transitions, 525 flow [2024-11-09 15:06:34,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 15:06:34,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:34,404 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:34,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 15:06:34,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 15:06:34,605 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:34,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1415746409, now seen corresponding path program 1 times [2024-11-09 15:06:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:34,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063419191] [2024-11-09 15:06:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:34,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 15:06:34,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:34,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063419191] [2024-11-09 15:06:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063419191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:06:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:06:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767119900] [2024-11-09 15:06:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:34,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:06:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:34,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:06:34,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:06:34,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 175 [2024-11-09 15:06:34,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 163 transitions, 525 flow. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 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 15:06:34,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:34,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 175 [2024-11-09 15:06:34,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:06:38,187 INFO L124 PetriNetUnfolderBase]: 24608/46830 cut-off events. [2024-11-09 15:06:38,187 INFO L125 PetriNetUnfolderBase]: For 3505/3505 co-relation queries the response was YES. [2024-11-09 15:06:38,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86069 conditions, 46830 events. 24608/46830 cut-off events. For 3505/3505 co-relation queries the response was YES. Maximal size of possible extension queue 1239. Compared 450676 event pairs, 1280 based on Foata normal form. 441/41939 useless extension candidates. Maximal degree in co-relation 85929. Up to 32530 conditions per place. [2024-11-09 15:06:38,571 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 177 selfloop transitions, 6 changer transitions 0/247 dead transitions. [2024-11-09 15:06:38,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 247 transitions, 1057 flow [2024-11-09 15:06:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:06:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:06:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-11-09 15:06:38,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61 [2024-11-09 15:06:38,572 INFO L175 Difference]: Start difference. First operand has 178 places, 163 transitions, 525 flow. Second operand 4 states and 427 transitions. [2024-11-09 15:06:38,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 247 transitions, 1057 flow [2024-11-09 15:06:38,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 247 transitions, 1045 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:06:38,580 INFO L231 Difference]: Finished difference. Result has 178 places, 163 transitions, 529 flow [2024-11-09 15:06:38,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=529, PETRI_PLACES=178, PETRI_TRANSITIONS=163} [2024-11-09 15:06:38,581 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 37 predicate places. [2024-11-09 15:06:38,581 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 163 transitions, 529 flow [2024-11-09 15:06:38,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 4 states have internal predecessors, (276), 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 15:06:38,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:38,582 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:06:38,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:06:38,582 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-09 15:06:38,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2028998699, now seen corresponding path program 1 times [2024-11-09 15:06:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:38,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352001439] [2024-11-09 15:06:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:38,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-09 15:06:39,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:39,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352001439] [2024-11-09 15:06:39,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352001439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:39,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:06:39,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:06:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961262429] [2024-11-09 15:06:39,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:39,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:06:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:06:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:06:39,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 175 [2024-11-09 15:06:39,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 163 transitions, 529 flow. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 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 15:06:39,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:39,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 175 [2024-11-09 15:06:39,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand