./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:16:59,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:16:59,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:16:59,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:16:59,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:16:59,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:16:59,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:16:59,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:16:59,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:16:59,922 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:16:59,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:16:59,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:16:59,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:16:59,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:16:59,925 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:16:59,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:16:59,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:16:59,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:16:59,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:16:59,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:16:59,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:16:59,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:16:59,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:16:59,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:16:59,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:16:59,938 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:16:59,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:16:59,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:16:59,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:16:59,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:16:59,939 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:16:59,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:16:59,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:16:59,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:16:59,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:59,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:16:59,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:16:59,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:16:59,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:16:59,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:16:59,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:16:59,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:16:59,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:16:59,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:16:59,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2024-11-10 22:17:00,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:17:00,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:17:00,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:17:00,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:17:00,223 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:17:00,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2024-11-10 22:17:01,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:17:01,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:17:01,880 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2024-11-10 22:17:01,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc18d12e/3a8ddbaa5b524ce78faf8e6571ac62f4/FLAGcafacf40e [2024-11-10 22:17:02,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc18d12e/3a8ddbaa5b524ce78faf8e6571ac62f4 [2024-11-10 22:17:02,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:17:02,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:17:02,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:17:02,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:17:02,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:17:02,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:02,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b67d463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02, skipping insertion in model container [2024-11-10 22:17:02,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:02,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:17:02,717 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,718 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,719 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,720 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:17:02,786 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:17:02,840 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,840 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,840 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,841 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 22:17:02,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:17:02,903 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:17:02,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02 WrapperNode [2024-11-10 22:17:02,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:17:02,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:17:02,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:17:02,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:17:02,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:02,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:02,971 INFO L138 Inliner]: procedures = 273, calls = 95, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 187 [2024-11-10 22:17:02,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:17:02,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:17:02,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:17:02,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:17:02,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:02,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:02,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,020 INFO L175 MemorySlicer]: Split 84 memory accesses to 1 slices as follows [84]. 100 percent of accesses are in the largest equivalence class. The 70 initializations are split as follows [70]. The 10 writes are split as follows [10]. [2024-11-10 22:17:03,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:17:03,054 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:17:03,054 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:17:03,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:17:03,057 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (1/1) ... [2024-11-10 22:17:03,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:17:03,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:03,091 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) [2024-11-10 22:17:03,095 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 [2024-11-10 22:17:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-10 22:17:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-10 22:17:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:17:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:17:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 22:17:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:17:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:17:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:17:03,170 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:17:03,359 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:17:03,361 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:17:03,739 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:17:03,739 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:17:04,233 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:17:04,233 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:17:04,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:04 BoogieIcfgContainer [2024-11-10 22:17:04,234 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:17:04,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:17:04,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:17:04,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:17:04,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:17:02" (1/3) ... [2024-11-10 22:17:04,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca876b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:04, skipping insertion in model container [2024-11-10 22:17:04,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:02" (2/3) ... [2024-11-10 22:17:04,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca876b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:04, skipping insertion in model container [2024-11-10 22:17:04,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:04" (3/3) ... [2024-11-10 22:17:04,244 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2024-11-10 22:17:04,259 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:17:04,260 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-10 22:17:04,260 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:17:04,346 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:17:04,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 73 transitions, 154 flow [2024-11-10 22:17:04,471 INFO L124 PetriNetUnfolderBase]: 12/71 cut-off events. [2024-11-10 22:17:04,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:04,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 71 events. 12/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-10 22:17:04,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 73 transitions, 154 flow [2024-11-10 22:17:04,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 71 transitions, 148 flow [2024-11-10 22:17:04,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:17:04,502 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;@62b7caf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:17:04,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-10 22:17:04,512 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:17:04,512 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2024-11-10 22:17:04,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:04,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:04,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:17:04,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:04,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash 626892434, now seen corresponding path program 1 times [2024-11-10 22:17:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:04,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955530205] [2024-11-10 22:17:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:04,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 22:17:04,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224229272] [2024-11-10 22:17:04,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:04,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:04,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:04,732 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) [2024-11-10 22:17:04,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:17:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:04,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 22:17:04,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:04,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:17:04,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:04,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955530205] [2024-11-10 22:17:04,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 22:17:04,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224229272] [2024-11-10 22:17:04,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224229272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:04,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:04,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:17:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894833370] [2024-11-10 22:17:04,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:04,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:17:04,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:04,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:17:04,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:17:04,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 73 [2024-11-10 22:17:04,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-11-10 22:17:04,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:04,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 73 [2024-11-10 22:17:04,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:05,286 INFO L124 PetriNetUnfolderBase]: 246/655 cut-off events. [2024-11-10 22:17:05,286 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 22:17:05,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 655 events. 246/655 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3736 event pairs, 175 based on Foata normal form. 73/635 useless extension candidates. Maximal degree in co-relation 1019. Up to 398 conditions per place. [2024-11-10 22:17:05,297 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 35 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-11-10 22:17:05,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 220 flow [2024-11-10 22:17:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:17:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:17:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-11-10 22:17:05,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6986301369863014 [2024-11-10 22:17:05,316 INFO L175 Difference]: Start difference. First operand has 66 places, 71 transitions, 148 flow. Second operand 3 states and 153 transitions. [2024-11-10 22:17:05,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 220 flow [2024-11-10 22:17:05,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:17:05,325 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 150 flow [2024-11-10 22:17:05,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2024-11-10 22:17:05,330 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2024-11-10 22:17:05,331 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 150 flow [2024-11-10 22:17:05,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-11-10 22:17:05,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:05,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:05,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:17:05,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-10 22:17:05,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:05,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:05,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2041170397, now seen corresponding path program 1 times [2024-11-10 22:17:05,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:05,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300157481] [2024-11-10 22:17:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:05,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:05,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:05,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300157481] [2024-11-10 22:17:05,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300157481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:05,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:05,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:05,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927337383] [2024-11-10 22:17:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:05,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:17:05,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:05,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:17:05,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:17:05,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 73 [2024-11-10 22:17:05,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-11-10 22:17:05,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:05,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 73 [2024-11-10 22:17:05,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:06,022 INFO L124 PetriNetUnfolderBase]: 246/671 cut-off events. [2024-11-10 22:17:06,023 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:17:06,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 671 events. 246/671 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3863 event pairs, 175 based on Foata normal form. 4/584 useless extension candidates. Maximal degree in co-relation 1066. Up to 404 conditions per place. [2024-11-10 22:17:06,028 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 33 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-11-10 22:17:06,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 68 transitions, 224 flow [2024-11-10 22:17:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:17:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:17:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2024-11-10 22:17:06,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6484018264840182 [2024-11-10 22:17:06,031 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 150 flow. Second operand 3 states and 142 transitions. [2024-11-10 22:17:06,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 68 transitions, 224 flow [2024-11-10 22:17:06,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:06,033 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 164 flow [2024-11-10 22:17:06,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2024-11-10 22:17:06,034 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2024-11-10 22:17:06,034 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 164 flow [2024-11-10 22:17:06,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-11-10 22:17:06,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:06,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:06,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:17:06,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:06,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:06,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1148220878, now seen corresponding path program 1 times [2024-11-10 22:17:06,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:06,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124350725] [2024-11-10 22:17:06,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:06,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:06,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124350725] [2024-11-10 22:17:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124350725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:06,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:06,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:06,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102030429] [2024-11-10 22:17:06,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:06,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:06,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-10 22:17:06,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-10 22:17:06,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:06,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-10 22:17:06,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:06,555 INFO L124 PetriNetUnfolderBase]: 246/667 cut-off events. [2024-11-10 22:17:06,556 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-10 22:17:06,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 667 events. 246/667 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3829 event pairs, 175 based on Foata normal form. 4/584 useless extension candidates. Maximal degree in co-relation 1052. Up to 408 conditions per place. [2024-11-10 22:17:06,560 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 34 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-10 22:17:06,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 240 flow [2024-11-10 22:17:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:06,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2024-11-10 22:17:06,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5821917808219178 [2024-11-10 22:17:06,564 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 164 flow. Second operand 4 states and 170 transitions. [2024-11-10 22:17:06,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 240 flow [2024-11-10 22:17:06,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:06,566 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 180 flow [2024-11-10 22:17:06,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2024-11-10 22:17:06,567 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places. [2024-11-10 22:17:06,568 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 180 flow [2024-11-10 22:17:06,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-10 22:17:06,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:06,568 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:06,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:17:06,569 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:06,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:06,570 INFO L85 PathProgramCache]: Analyzing trace with hash 495801450, now seen corresponding path program 1 times [2024-11-10 22:17:06,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:06,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581948722] [2024-11-10 22:17:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:06,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581948722] [2024-11-10 22:17:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581948722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057612201] [2024-11-10 22:17:06,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:06,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:06,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:06,755 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) [2024-11-10 22:17:06,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:17:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:06,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:17:06,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:06,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:06,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057612201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:06,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:06,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 22:17:06,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220857330] [2024-11-10 22:17:06,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:06,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:06,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:06,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:06,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:07,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-10 22:17:07,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 180 flow. Second operand has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 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) [2024-11-10 22:17:07,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:07,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-10 22:17:07,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:07,437 INFO L124 PetriNetUnfolderBase]: 246/687 cut-off events. [2024-11-10 22:17:07,437 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-10 22:17:07,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 687 events. 246/687 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3953 event pairs, 175 based on Foata normal form. 6/606 useless extension candidates. Maximal degree in co-relation 1073. Up to 398 conditions per place. [2024-11-10 22:17:07,443 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 37 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2024-11-10 22:17:07,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 302 flow [2024-11-10 22:17:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:17:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:17:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 336 transitions. [2024-11-10 22:17:07,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5114155251141552 [2024-11-10 22:17:07,445 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 180 flow. Second operand 9 states and 336 transitions. [2024-11-10 22:17:07,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 302 flow [2024-11-10 22:17:07,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:17:07,452 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 230 flow [2024-11-10 22:17:07,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=230, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2024-11-10 22:17:07,454 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-11-10 22:17:07,455 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 230 flow [2024-11-10 22:17:07,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.6) internal successors, (336), 10 states have internal predecessors, (336), 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) [2024-11-10 22:17:07,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:07,456 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:07,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 22:17:07,656 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 [2024-11-10 22:17:07,657 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:07,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1810030489, now seen corresponding path program 1 times [2024-11-10 22:17:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:07,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114427543] [2024-11-10 22:17:07,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:07,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:07,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:07,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114427543] [2024-11-10 22:17:07,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114427543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:07,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358604520] [2024-11-10 22:17:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:07,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:07,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:07,846 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) [2024-11-10 22:17:07,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:17:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:08,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:17:08,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:08,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:17:08,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358604520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:08,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:17:08,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:17:08,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554589743] [2024-11-10 22:17:08,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:08,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:17:08,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:08,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:17:08,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:17:08,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-10 22:17:08,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2024-11-10 22:17:08,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:08,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-10 22:17:08,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:08,552 INFO L124 PetriNetUnfolderBase]: 246/683 cut-off events. [2024-11-10 22:17:08,553 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-11-10 22:17:08,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 683 events. 246/683 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3902 event pairs, 175 based on Foata normal form. 4/600 useless extension candidates. Maximal degree in co-relation 1091. Up to 394 conditions per place. [2024-11-10 22:17:08,559 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 30 selfloop transitions, 8 changer transitions 0/70 dead transitions. [2024-11-10 22:17:08,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 70 transitions, 292 flow [2024-11-10 22:17:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:17:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:17:08,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 234 transitions. [2024-11-10 22:17:08,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5342465753424658 [2024-11-10 22:17:08,561 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 230 flow. Second operand 6 states and 234 transitions. [2024-11-10 22:17:08,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 70 transitions, 292 flow [2024-11-10 22:17:08,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 70 transitions, 284 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:17:08,584 INFO L231 Difference]: Finished difference. Result has 83 places, 70 transitions, 224 flow [2024-11-10 22:17:08,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=83, PETRI_TRANSITIONS=70} [2024-11-10 22:17:08,586 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-11-10 22:17:08,587 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 70 transitions, 224 flow [2024-11-10 22:17:08,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2024-11-10 22:17:08,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:08,588 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-10 22:17:08,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:17:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:08,793 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:08,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:08,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2084907721, now seen corresponding path program 1 times [2024-11-10 22:17:08,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:08,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462278638] [2024-11-10 22:17:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:08,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 22:17:08,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:08,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462278638] [2024-11-10 22:17:08,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462278638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:08,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:08,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:08,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003529635] [2024-11-10 22:17:08,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:08,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:08,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:08,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:08,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 73 [2024-11-10 22:17:08,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 70 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-11-10 22:17:08,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:08,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 73 [2024-11-10 22:17:08,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:09,151 INFO L124 PetriNetUnfolderBase]: 246/681 cut-off events. [2024-11-10 22:17:09,151 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-10 22:17:09,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 681 events. 246/681 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3899 event pairs, 175 based on Foata normal form. 2/596 useless extension candidates. Maximal degree in co-relation 1097. Up to 402 conditions per place. [2024-11-10 22:17:09,155 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 29 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2024-11-10 22:17:09,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 70 transitions, 298 flow [2024-11-10 22:17:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 169 transitions. [2024-11-10 22:17:09,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5787671232876712 [2024-11-10 22:17:09,157 INFO L175 Difference]: Start difference. First operand has 83 places, 70 transitions, 224 flow. Second operand 4 states and 169 transitions. [2024-11-10 22:17:09,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 70 transitions, 298 flow [2024-11-10 22:17:09,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 70 transitions, 282 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 22:17:09,160 INFO L231 Difference]: Finished difference. Result has 80 places, 70 transitions, 232 flow [2024-11-10 22:17:09,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=80, PETRI_TRANSITIONS=70} [2024-11-10 22:17:09,161 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-11-10 22:17:09,161 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 70 transitions, 232 flow [2024-11-10 22:17:09,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-11-10 22:17:09,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:09,161 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:09,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:17:09,162 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:09,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash -736015048, now seen corresponding path program 2 times [2024-11-10 22:17:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:09,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358885615] [2024-11-10 22:17:09,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:09,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 22:17:09,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:09,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358885615] [2024-11-10 22:17:09,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358885615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:09,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:09,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:17:09,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161740133] [2024-11-10 22:17:09,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:09,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:09,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:09,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:09,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:09,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 73 [2024-11-10 22:17:09,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-10 22:17:09,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:09,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 73 [2024-11-10 22:17:09,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:09,620 INFO L124 PetriNetUnfolderBase]: 246/679 cut-off events. [2024-11-10 22:17:09,620 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-10 22:17:09,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 679 events. 246/679 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3894 event pairs, 175 based on Foata normal form. 2/596 useless extension candidates. Maximal degree in co-relation 1078. Up to 406 conditions per place. [2024-11-10 22:17:09,624 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 44 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-11-10 22:17:09,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 392 flow [2024-11-10 22:17:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 173 transitions. [2024-11-10 22:17:09,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5924657534246576 [2024-11-10 22:17:09,625 INFO L175 Difference]: Start difference. First operand has 80 places, 70 transitions, 232 flow. Second operand 4 states and 173 transitions. [2024-11-10 22:17:09,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 392 flow [2024-11-10 22:17:09,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 78 transitions, 368 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:17:09,628 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 237 flow [2024-11-10 22:17:09,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-11-10 22:17:09,629 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-11-10 22:17:09,630 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 237 flow [2024-11-10 22:17:09,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-10 22:17:09,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:09,631 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:09,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:17:09,633 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:09,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1924166690, now seen corresponding path program 1 times [2024-11-10 22:17:09,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:09,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51169962] [2024-11-10 22:17:09,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:09,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:10,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:10,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51169962] [2024-11-10 22:17:10,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51169962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:10,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381082067] [2024-11-10 22:17:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:10,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:10,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:10,036 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) [2024-11-10 22:17:10,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:17:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:10,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:17:10,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:10,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:10,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381082067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:10,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:10,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 22:17:10,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720060090] [2024-11-10 22:17:10,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:10,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:17:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:10,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:17:10,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:17:10,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-10 22:17:10,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 237 flow. Second operand has 18 states, 18 states have (on average 33.888888888888886) internal successors, (610), 18 states have internal predecessors, (610), 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) [2024-11-10 22:17:10,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:10,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-10 22:17:10,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:11,336 INFO L124 PetriNetUnfolderBase]: 246/735 cut-off events. [2024-11-10 22:17:11,337 INFO L125 PetriNetUnfolderBase]: For 348/348 co-relation queries the response was YES. [2024-11-10 22:17:11,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 735 events. 246/735 cut-off events. For 348/348 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3939 event pairs, 175 based on Foata normal form. 8/658 useless extension candidates. Maximal degree in co-relation 1224. Up to 398 conditions per place. [2024-11-10 22:17:11,341 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 49 selfloop transitions, 15 changer transitions 0/94 dead transitions. [2024-11-10 22:17:11,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 94 transitions, 527 flow [2024-11-10 22:17:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:17:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:17:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 546 transitions. [2024-11-10 22:17:11,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4986301369863014 [2024-11-10 22:17:11,343 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 237 flow. Second operand 15 states and 546 transitions. [2024-11-10 22:17:11,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 94 transitions, 527 flow [2024-11-10 22:17:11,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:17:11,347 INFO L231 Difference]: Finished difference. Result has 100 places, 80 transitions, 359 flow [2024-11-10 22:17:11,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=359, PETRI_PLACES=100, PETRI_TRANSITIONS=80} [2024-11-10 22:17:11,349 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 34 predicate places. [2024-11-10 22:17:11,350 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 80 transitions, 359 flow [2024-11-10 22:17:11,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 33.888888888888886) internal successors, (610), 18 states have internal predecessors, (610), 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) [2024-11-10 22:17:11,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:11,351 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:11,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 22:17:11,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:11,552 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:11,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:11,553 INFO L85 PathProgramCache]: Analyzing trace with hash 861774970, now seen corresponding path program 2 times [2024-11-10 22:17:11,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:11,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915971981] [2024-11-10 22:17:11,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:11,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:12,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915971981] [2024-11-10 22:17:12,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915971981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:12,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790248808] [2024-11-10 22:17:12,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:17:12,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:12,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:12,241 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) [2024-11-10 22:17:12,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:17:12,666 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:17:12,667 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:17:12,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 22:17:12,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:12,775 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:12,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:13,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790248808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:13,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:13,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-10 22:17:13,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572748581] [2024-11-10 22:17:13,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:13,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 22:17:13,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:13,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 22:17:13,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 22:17:13,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-10 22:17:13,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 80 transitions, 359 flow. Second operand has 34 states, 34 states have (on average 33.705882352941174) internal successors, (1146), 34 states have internal predecessors, (1146), 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) [2024-11-10 22:17:13,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:13,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-10 22:17:13,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:14,905 INFO L124 PetriNetUnfolderBase]: 246/847 cut-off events. [2024-11-10 22:17:14,906 INFO L125 PetriNetUnfolderBase]: For 1720/1720 co-relation queries the response was YES. [2024-11-10 22:17:14,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 847 events. 246/847 cut-off events. For 1720/1720 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3975 event pairs, 175 based on Foata normal form. 16/778 useless extension candidates. Maximal degree in co-relation 1498. Up to 398 conditions per place. [2024-11-10 22:17:14,912 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 73 selfloop transitions, 31 changer transitions 0/134 dead transitions. [2024-11-10 22:17:14,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 134 transitions, 1031 flow [2024-11-10 22:17:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-10 22:17:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-10 22:17:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1102 transitions. [2024-11-10 22:17:14,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4869642068051259 [2024-11-10 22:17:14,917 INFO L175 Difference]: Start difference. First operand has 100 places, 80 transitions, 359 flow. Second operand 31 states and 1102 transitions. [2024-11-10 22:17:14,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 134 transitions, 1031 flow [2024-11-10 22:17:14,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 134 transitions, 997 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-11-10 22:17:14,923 INFO L231 Difference]: Finished difference. Result has 135 places, 97 transitions, 615 flow [2024-11-10 22:17:14,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=615, PETRI_PLACES=135, PETRI_TRANSITIONS=97} [2024-11-10 22:17:14,924 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 69 predicate places. [2024-11-10 22:17:14,924 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 97 transitions, 615 flow [2024-11-10 22:17:14,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 33.705882352941174) internal successors, (1146), 34 states have internal predecessors, (1146), 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) [2024-11-10 22:17:14,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:14,925 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 17, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:14,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 22:17:15,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:15,130 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:15,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:15,130 INFO L85 PathProgramCache]: Analyzing trace with hash -731211342, now seen corresponding path program 3 times [2024-11-10 22:17:15,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:15,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301702385] [2024-11-10 22:17:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:15,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:17,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301702385] [2024-11-10 22:17:17,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301702385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191252318] [2024-11-10 22:17:17,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 22:17:17,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:17,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:17,209 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) [2024-11-10 22:17:17,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:17:17,613 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 22:17:17,613 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:17:17,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:17:17,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-11-10 22:17:17,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:17:17,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191252318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:17,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:17:17,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 39 [2024-11-10 22:17:17,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619144583] [2024-11-10 22:17:17,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:17,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:17:17,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:17,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:17:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1174, Unknown=0, NotChecked=0, Total=1482 [2024-11-10 22:17:18,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-11-10 22:17:18,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 97 transitions, 615 flow. Second operand has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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) [2024-11-10 22:17:18,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:18,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-11-10 22:17:18,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:18,628 INFO L124 PetriNetUnfolderBase]: 246/832 cut-off events. [2024-11-10 22:17:18,628 INFO L125 PetriNetUnfolderBase]: For 1792/1792 co-relation queries the response was YES. [2024-11-10 22:17:18,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1884 conditions, 832 events. 246/832 cut-off events. For 1792/1792 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3870 event pairs, 175 based on Foata normal form. 15/762 useless extension candidates. Maximal degree in co-relation 1468. Up to 389 conditions per place. [2024-11-10 22:17:18,635 INFO L140 encePairwiseOnDemand]: 64/73 looper letters, 58 selfloop transitions, 37 changer transitions 0/127 dead transitions. [2024-11-10 22:17:18,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 127 transitions, 1206 flow [2024-11-10 22:17:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:17:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:17:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 343 transitions. [2024-11-10 22:17:18,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46986301369863015 [2024-11-10 22:17:18,637 INFO L175 Difference]: Start difference. First operand has 135 places, 97 transitions, 615 flow. Second operand 10 states and 343 transitions. [2024-11-10 22:17:18,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 127 transitions, 1206 flow [2024-11-10 22:17:18,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 1154 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-10 22:17:18,649 INFO L231 Difference]: Finished difference. Result has 135 places, 126 transitions, 1134 flow [2024-11-10 22:17:18,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1134, PETRI_PLACES=135, PETRI_TRANSITIONS=126} [2024-11-10 22:17:18,650 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 69 predicate places. [2024-11-10 22:17:18,651 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 126 transitions, 1134 flow [2024-11-10 22:17:18,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.375) internal successors, (251), 8 states have internal predecessors, (251), 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) [2024-11-10 22:17:18,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:18,652 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:18,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 22:17:18,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:18,853 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1192714709, now seen corresponding path program 1 times [2024-11-10 22:17:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:18,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097076650] [2024-11-10 22:17:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:18,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 156 proven. 660 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:17:20,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:20,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097076650] [2024-11-10 22:17:20,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097076650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:20,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625960128] [2024-11-10 22:17:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:20,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:20,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:20,723 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) [2024-11-10 22:17:20,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:17:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:21,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 22:17:21,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 156 proven. 660 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:17:21,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 156 proven. 660 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:17:22,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625960128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:22,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-10 22:17:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317714498] [2024-11-10 22:17:22,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:22,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-10 22:17:22,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:22,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-10 22:17:22,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 22:17:22,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 73 [2024-11-10 22:17:22,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 1134 flow. Second operand has 63 states, 63 states have (on average 33.63492063492063) internal successors, (2119), 63 states have internal predecessors, (2119), 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) [2024-11-10 22:17:22,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:22,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 73 [2024-11-10 22:17:22,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:24,792 INFO L124 PetriNetUnfolderBase]: 246/1027 cut-off events. [2024-11-10 22:17:24,793 INFO L125 PetriNetUnfolderBase]: For 8721/8721 co-relation queries the response was YES. [2024-11-10 22:17:24,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2955 conditions, 1027 events. 246/1027 cut-off events. For 8721/8721 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3911 event pairs, 175 based on Foata normal form. 30/972 useless extension candidates. Maximal degree in co-relation 2062. Up to 398 conditions per place. [2024-11-10 22:17:24,800 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 90 selfloop transitions, 121 changer transitions 0/240 dead transitions. [2024-11-10 22:17:24,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 240 transitions, 3058 flow [2024-11-10 22:17:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-10 22:17:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-10 22:17:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2115 transitions. [2024-11-10 22:17:24,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47496070065124635 [2024-11-10 22:17:24,807 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 1134 flow. Second operand 61 states and 2115 transitions. [2024-11-10 22:17:24,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 240 transitions, 3058 flow [2024-11-10 22:17:24,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 240 transitions, 3046 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-10 22:17:24,829 INFO L231 Difference]: Finished difference. Result has 207 places, 187 transitions, 2442 flow [2024-11-10 22:17:24,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=2442, PETRI_PLACES=207, PETRI_TRANSITIONS=187} [2024-11-10 22:17:24,830 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 141 predicate places. [2024-11-10 22:17:24,830 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 187 transitions, 2442 flow [2024-11-10 22:17:24,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 33.63492063492063) internal successors, (2119), 63 states have internal predecessors, (2119), 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) [2024-11-10 22:17:24,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:24,832 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:24,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 22:17:25,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:25,033 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:17:25,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash 257040162, now seen corresponding path program 2 times [2024-11-10 22:17:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:25,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144655130] [2024-11-10 22:17:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:18:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 22:18:25,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587581314] [2024-11-10 22:18:25,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:18:25,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:18:25,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:18:25,362 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) [2024-11-10 22:18:25,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 22:18:28,009 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:18:28,009 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:18:28,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 3177 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 22:18:28,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:18:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2980 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2024-11-10 22:18:28,271 INFO L311 TraceCheckSpWp]: Computing backward predicates...