./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:33:23,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:33:23,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:33:23,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:33:23,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:33:23,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:33:23,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:33:23,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:33:23,736 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:33:23,736 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:33:23,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:33:23,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:33:23,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:33:23,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:33:23,738 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:33:23,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:33:23,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:33:23,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:33:23,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:33:23,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:33:23,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:33:23,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:33:23,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:33:23,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:33:23,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:33:23,742 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:33:23,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:33:23,743 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:33:23,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:33:23,743 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:33:23,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:33:23,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:33:23,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:33:23,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:33:23,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:33:23,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:33:23,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:33:23,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:33:23,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:33:23,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:33:23,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:33:23,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:33:23,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:33:23,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:33:23,748 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-10-24 23:33:23,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:33:24,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:33:24,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:33:24,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:33:24,025 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:33:24,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-10-24 23:33:25,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:33:25,804 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:33:25,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-10-24 23:33:25,832 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/114317880/86629e2e768d4fc4987a7f193aa77c76/FLAG577551ada [2024-10-24 23:33:26,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/114317880/86629e2e768d4fc4987a7f193aa77c76 [2024-10-24 23:33:26,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:33:26,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:33:26,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:33:26,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:33:26,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:33:26,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:26,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f690a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26, skipping insertion in model container [2024-10-24 23:33:26,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:26,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:33:26,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:33:26,802 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:33:26,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:33:26,933 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:33:26,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26 WrapperNode [2024-10-24 23:33:26,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:33:26,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:33:26,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:33:26,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:33:26,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:26,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,001 INFO L138 Inliner]: procedures = 368, calls = 26, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 130 [2024-10-24 23:33:27,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:33:27,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:33:27,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:33:27,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:33:27,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,055 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [1, 5, 14]. 70 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 13 writes are split as follows [1, 2, 10]. [2024-10-24 23:33:27,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:33:27,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:33:27,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:33:27,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:33:27,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (1/1) ... [2024-10-24 23:33:27,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:33:27,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:27,128 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) [2024-10-24 23:33:27,135 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 [2024-10-24 23:33:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 23:33:27,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:33:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:33:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:33:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:33:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 23:33:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:33:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 23:33:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 23:33:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 23:33:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 23:33:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 23:33:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:33:27,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:33:27,188 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:33:27,368 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:33:27,370 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:33:27,649 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:33:27,650 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:33:27,899 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:33:27,899 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 23:33:27,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:27 BoogieIcfgContainer [2024-10-24 23:33:27,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:33:27,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:33:27,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:33:27,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:33:27,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:33:26" (1/3) ... [2024-10-24 23:33:27,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37146cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:27, skipping insertion in model container [2024-10-24 23:33:27,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:26" (2/3) ... [2024-10-24 23:33:27,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37146cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:27, skipping insertion in model container [2024-10-24 23:33:27,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:27" (3/3) ... [2024-10-24 23:33:27,908 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-10-24 23:33:27,926 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:33:27,926 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-24 23:33:27,926 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:33:27,979 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 23:33:28,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 35 transitions, 74 flow [2024-10-24 23:33:28,047 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-10-24 23:33:28,049 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:33:28,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 3/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-10-24 23:33:28,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 35 transitions, 74 flow [2024-10-24 23:33:28,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 34 transitions, 71 flow [2024-10-24 23:33:28,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:33:28,077 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;@5f100fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:33:28,078 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-24 23:33:28,081 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:33:28,082 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-24 23:33:28,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:33:28,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:28,083 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 23:33:28,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:28,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:28,088 INFO L85 PathProgramCache]: Analyzing trace with hash 376081, now seen corresponding path program 1 times [2024-10-24 23:33:28,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:28,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554383374] [2024-10-24 23:33:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:28,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:28,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:28,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554383374] [2024-10-24 23:33:28,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554383374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:28,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:28,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877809811] [2024-10-24 23:33:28,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:28,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:28,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:28,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-24 23:33:28,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:28,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:28,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-24 23:33:28,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:28,804 INFO L124 PetriNetUnfolderBase]: 93/258 cut-off events. [2024-10-24 23:33:28,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:33:28,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 258 events. 93/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1048 event pairs, 42 based on Foata normal form. 1/231 useless extension candidates. Maximal degree in co-relation 426. Up to 99 conditions per place. [2024-10-24 23:33:28,812 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 28 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2024-10-24 23:33:28,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 161 flow [2024-10-24 23:33:28,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-10-24 23:33:28,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-24 23:33:28,828 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 4 states and 90 transitions. [2024-10-24 23:33:28,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 161 flow [2024-10-24 23:33:28,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:33:28,834 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 91 flow [2024-10-24 23:33:28,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2024-10-24 23:33:28,842 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-10-24 23:33:28,843 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 91 flow [2024-10-24 23:33:28,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:28,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:28,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 23:33:28,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:33:28,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:28,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash 11658889, now seen corresponding path program 1 times [2024-10-24 23:33:28,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:28,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564034358] [2024-10-24 23:33:28,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:28,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:28,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:28,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564034358] [2024-10-24 23:33:28,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564034358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:28,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:28,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:28,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141535625] [2024-10-24 23:33:28,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:28,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:28,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:28,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:28,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:28,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-24 23:33:28,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:28,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:28,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-24 23:33:28,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:29,190 INFO L124 PetriNetUnfolderBase]: 86/245 cut-off events. [2024-10-24 23:33:29,191 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-24 23:33:29,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 245 events. 86/245 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 992 event pairs, 36 based on Foata normal form. 9/235 useless extension candidates. Maximal degree in co-relation 431. Up to 105 conditions per place. [2024-10-24 23:33:29,194 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 29 selfloop transitions, 5 changer transitions 0/47 dead transitions. [2024-10-24 23:33:29,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 186 flow [2024-10-24 23:33:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:29,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-10-24 23:33:29,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2024-10-24 23:33:29,196 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 91 flow. Second operand 4 states and 93 transitions. [2024-10-24 23:33:29,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 186 flow [2024-10-24 23:33:29,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:29,198 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 114 flow [2024-10-24 23:33:29,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2024-10-24 23:33:29,199 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2024-10-24 23:33:29,199 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 114 flow [2024-10-24 23:33:29,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:29,200 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-24 23:33:29,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:33:29,200 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:29,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:29,201 INFO L85 PathProgramCache]: Analyzing trace with hash -562020677, now seen corresponding path program 1 times [2024-10-24 23:33:29,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:29,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619068387] [2024-10-24 23:33:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:29,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:33:29,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619068387] [2024-10-24 23:33:29,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619068387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:29,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:29,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:29,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078432465] [2024-10-24 23:33:29,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:29,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:33:29,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:33:29,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:33:29,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-24 23:33:29,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:29,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-24 23:33:29,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:29,400 INFO L124 PetriNetUnfolderBase]: 86/254 cut-off events. [2024-10-24 23:33:29,400 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-24 23:33:29,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 254 events. 86/254 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1068 event pairs, 66 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 467. Up to 174 conditions per place. [2024-10-24 23:33:29,403 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2024-10-24 23:33:29,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 154 flow [2024-10-24 23:33:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:33:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:33:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-10-24 23:33:29,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-10-24 23:33:29,406 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 114 flow. Second operand 3 states and 62 transitions. [2024-10-24 23:33:29,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 154 flow [2024-10-24 23:33:29,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:29,408 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 108 flow [2024-10-24 23:33:29,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2024-10-24 23:33:29,411 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-10-24 23:33:29,411 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 108 flow [2024-10-24 23:33:29,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:29,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:29,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:33:29,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:29,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:29,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2022555361, now seen corresponding path program 1 times [2024-10-24 23:33:29,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:29,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092423703] [2024-10-24 23:33:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:29,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:33:29,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:29,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092423703] [2024-10-24 23:33:29,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092423703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:29,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:29,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:29,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284501000] [2024-10-24 23:33:29,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:29,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:33:29,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:29,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:33:29,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:33:29,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-24 23:33:29,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:29,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-24 23:33:29,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:29,622 INFO L124 PetriNetUnfolderBase]: 170/504 cut-off events. [2024-10-24 23:33:29,623 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-10-24 23:33:29,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 504 events. 170/504 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2650 event pairs, 88 based on Foata normal form. 24/477 useless extension candidates. Maximal degree in co-relation 914. Up to 224 conditions per place. [2024-10-24 23:33:29,627 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 35 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-10-24 23:33:29,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 217 flow [2024-10-24 23:33:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:33:29,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:33:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-10-24 23:33:29,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2024-10-24 23:33:29,629 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 108 flow. Second operand 3 states and 78 transitions. [2024-10-24 23:33:29,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 217 flow [2024-10-24 23:33:29,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:29,631 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 116 flow [2024-10-24 23:33:29,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2024-10-24 23:33:29,632 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2024-10-24 23:33:29,632 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 116 flow [2024-10-24 23:33:29,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:29,633 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:29,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:33:29,633 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:29,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:29,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1097134653, now seen corresponding path program 1 times [2024-10-24 23:33:29,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:29,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872621534] [2024-10-24 23:33:29,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:29,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:33:29,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:29,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872621534] [2024-10-24 23:33:29,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872621534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:29,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:29,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:33:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382906838] [2024-10-24 23:33:29,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:29,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:29,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:29,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:29,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:29,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-10-24 23:33:29,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:29,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-10-24 23:33:29,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:29,956 INFO L124 PetriNetUnfolderBase]: 170/421 cut-off events. [2024-10-24 23:33:29,957 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-10-24 23:33:29,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 421 events. 170/421 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1921 event pairs, 88 based on Foata normal form. 24/436 useless extension candidates. Maximal degree in co-relation 896. Up to 222 conditions per place. [2024-10-24 23:33:29,959 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-10-24 23:33:29,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 56 transitions, 266 flow [2024-10-24 23:33:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2024-10-24 23:33:29,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-24 23:33:29,961 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 116 flow. Second operand 4 states and 100 transitions. [2024-10-24 23:33:29,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 56 transitions, 266 flow [2024-10-24 23:33:29,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:33:29,964 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 138 flow [2024-10-24 23:33:29,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2024-10-24 23:33:29,965 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2024-10-24 23:33:29,965 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 138 flow [2024-10-24 23:33:29,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:29,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:29,965 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:29,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:33:29,966 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:29,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 349556514, now seen corresponding path program 1 times [2024-10-24 23:33:29,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:29,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412731993] [2024-10-24 23:33:29,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:29,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:33:30,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:30,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412731993] [2024-10-24 23:33:30,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412731993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:30,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:30,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:33:30,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831514523] [2024-10-24 23:33:30,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:30,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:30,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:30,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:30,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:30,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-10-24 23:33:30,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:30,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:30,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-10-24 23:33:30,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:30,276 INFO L124 PetriNetUnfolderBase]: 194/495 cut-off events. [2024-10-24 23:33:30,276 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2024-10-24 23:33:30,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 495 events. 194/495 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2379 event pairs, 110 based on Foata normal form. 24/514 useless extension candidates. Maximal degree in co-relation 1144. Up to 272 conditions per place. [2024-10-24 23:33:30,279 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 47 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-10-24 23:33:30,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 59 transitions, 324 flow [2024-10-24 23:33:30,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-10-24 23:33:30,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-10-24 23:33:30,281 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 138 flow. Second operand 4 states and 92 transitions. [2024-10-24 23:33:30,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 59 transitions, 324 flow [2024-10-24 23:33:30,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 59 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:33:30,284 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 152 flow [2024-10-24 23:33:30,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-10-24 23:33:30,285 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2024-10-24 23:33:30,285 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 152 flow [2024-10-24 23:33:30,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:30,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:30,285 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:30,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:33:30,286 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:30,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:30,286 INFO L85 PathProgramCache]: Analyzing trace with hash 871932238, now seen corresponding path program 1 times [2024-10-24 23:33:30,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:30,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595677942] [2024-10-24 23:33:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:30,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:33:30,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:30,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595677942] [2024-10-24 23:33:30,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595677942] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:33:30,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055790720] [2024-10-24 23:33:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:30,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:30,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:30,391 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) [2024-10-24 23:33:30,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 23:33:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:30,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:33:30,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:33:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:33:30,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:33:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:33:30,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055790720] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:33:30,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:33:30,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-24 23:33:30,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646502981] [2024-10-24 23:33:30,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:33:30,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 23:33:30,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 23:33:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:33:30,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-24 23:33:30,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 152 flow. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:30,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:30,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-24 23:33:30,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:30,858 INFO L124 PetriNetUnfolderBase]: 170/424 cut-off events. [2024-10-24 23:33:30,858 INFO L125 PetriNetUnfolderBase]: For 316/316 co-relation queries the response was YES. [2024-10-24 23:33:30,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 424 events. 170/424 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1916 event pairs, 22 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 1052. Up to 145 conditions per place. [2024-10-24 23:33:30,861 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 11 changer transitions 0/63 dead transitions. [2024-10-24 23:33:30,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 353 flow [2024-10-24 23:33:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 23:33:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 23:33:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-10-24 23:33:30,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563265306122449 [2024-10-24 23:33:30,863 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 152 flow. Second operand 7 states and 138 transitions. [2024-10-24 23:33:30,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 353 flow [2024-10-24 23:33:30,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:30,868 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 209 flow [2024-10-24 23:33:30,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=209, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2024-10-24 23:33:30,871 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2024-10-24 23:33:30,872 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 209 flow [2024-10-24 23:33:30,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:30,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:30,872 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:30,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 23:33:31,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:31,077 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:31,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:31,078 INFO L85 PathProgramCache]: Analyzing trace with hash -865277402, now seen corresponding path program 1 times [2024-10-24 23:33:31,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:31,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713597806] [2024-10-24 23:33:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:33:31,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:31,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713597806] [2024-10-24 23:33:31,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713597806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:33:31,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521658835] [2024-10-24 23:33:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:31,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:31,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:31,288 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) [2024-10-24 23:33:31,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 23:33:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:31,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:33:31,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:33:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:33:31,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:33:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:33:31,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521658835] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:33:31,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:33:31,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-10-24 23:33:31,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357547247] [2024-10-24 23:33:31,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:33:31,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 23:33:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 23:33:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-24 23:33:31,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-24 23:33:31,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 209 flow. Second operand has 16 states, 16 states have (on average 14.5) internal successors, (232), 16 states have internal predecessors, (232), 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) [2024-10-24 23:33:31,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:31,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-24 23:33:31,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:32,086 INFO L124 PetriNetUnfolderBase]: 170/436 cut-off events. [2024-10-24 23:33:32,086 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-10-24 23:33:32,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 436 events. 170/436 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1910 event pairs, 22 based on Foata normal form. 4/435 useless extension candidates. Maximal degree in co-relation 1124. Up to 145 conditions per place. [2024-10-24 23:33:32,090 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 19 changer transitions 0/71 dead transitions. [2024-10-24 23:33:32,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 71 transitions, 473 flow [2024-10-24 23:33:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 23:33:32,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 23:33:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 252 transitions. [2024-10-24 23:33:32,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-10-24 23:33:32,092 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 209 flow. Second operand 15 states and 252 transitions. [2024-10-24 23:33:32,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 71 transitions, 473 flow [2024-10-24 23:33:32,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 71 transitions, 449 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-24 23:33:32,100 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 316 flow [2024-10-24 23:33:32,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=316, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-24 23:33:32,100 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 35 predicate places. [2024-10-24 23:33:32,101 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 316 flow [2024-10-24 23:33:32,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.5) internal successors, (232), 16 states have internal predecessors, (232), 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) [2024-10-24 23:33:32,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:32,102 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:32,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 23:33:32,303 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,SelfDestructingSolverStorable7 [2024-10-24 23:33:32,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:32,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1507340198, now seen corresponding path program 2 times [2024-10-24 23:33:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675183872] [2024-10-24 23:33:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:32,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:33:32,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:32,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675183872] [2024-10-24 23:33:32,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675183872] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:33:32,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892518239] [2024-10-24 23:33:32,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:33:32,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:32,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:32,869 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) [2024-10-24 23:33:32,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 23:33:33,138 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:33:33,139 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:33:33,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 23:33:33,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:33:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:33:33,250 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:33:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 23:33:33,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892518239] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:33:33,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:33:33,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-10-24 23:33:33,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163485103] [2024-10-24 23:33:33,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:33:33,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 23:33:33,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:33,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 23:33:33,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 23:33:33,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-24 23:33:33,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 316 flow. Second operand has 23 states, 23 states have (on average 14.434782608695652) internal successors, (332), 23 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:33,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:33,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-24 23:33:33,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:33,919 INFO L124 PetriNetUnfolderBase]: 170/445 cut-off events. [2024-10-24 23:33:33,920 INFO L125 PetriNetUnfolderBase]: For 785/785 co-relation queries the response was YES. [2024-10-24 23:33:33,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 445 events. 170/445 cut-off events. For 785/785 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1912 event pairs, 22 based on Foata normal form. 3/443 useless extension candidates. Maximal degree in co-relation 1161. Up to 145 conditions per place. [2024-10-24 23:33:33,924 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 40 selfloop transitions, 25 changer transitions 0/77 dead transitions. [2024-10-24 23:33:33,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 77 transitions, 586 flow [2024-10-24 23:33:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 23:33:33,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 23:33:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 335 transitions. [2024-10-24 23:33:33,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4557823129251701 [2024-10-24 23:33:33,926 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 316 flow. Second operand 21 states and 335 transitions. [2024-10-24 23:33:33,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 77 transitions, 586 flow [2024-10-24 23:33:33,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 77 transitions, 566 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 23:33:33,930 INFO L231 Difference]: Finished difference. Result has 89 places, 56 transitions, 429 flow [2024-10-24 23:33:33,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=429, PETRI_PLACES=89, PETRI_TRANSITIONS=56} [2024-10-24 23:33:33,931 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 54 predicate places. [2024-10-24 23:33:33,931 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 56 transitions, 429 flow [2024-10-24 23:33:33,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.434782608695652) internal successors, (332), 23 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:33,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:33,932 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:33,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 23:33:34,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:34,133 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:34,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:34,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1926236008, now seen corresponding path program 3 times [2024-10-24 23:33:34,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:34,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484410473] [2024-10-24 23:33:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 23:33:34,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:34,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484410473] [2024-10-24 23:33:34,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484410473] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:33:34,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206913482] [2024-10-24 23:33:34,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 23:33:34,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:34,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:34,487 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) [2024-10-24 23:33:34,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 23:33:34,746 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 23:33:34,746 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:33:34,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:33:34,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:33:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 23:33:34,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:33:34,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206913482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:34,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:33:34,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-24 23:33:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865695951] [2024-10-24 23:33:34,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:34,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:33:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:33:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:33:34,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-24 23:33:34,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 56 transitions, 429 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:34,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:34,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-24 23:33:34,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:34,981 INFO L124 PetriNetUnfolderBase]: 182/486 cut-off events. [2024-10-24 23:33:34,981 INFO L125 PetriNetUnfolderBase]: For 743/743 co-relation queries the response was YES. [2024-10-24 23:33:34,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 486 events. 182/486 cut-off events. For 743/743 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2125 event pairs, 88 based on Foata normal form. 12/495 useless extension candidates. Maximal degree in co-relation 1256. Up to 220 conditions per place. [2024-10-24 23:33:34,985 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 53 selfloop transitions, 8 changer transitions 1/73 dead transitions. [2024-10-24 23:33:34,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 73 transitions, 617 flow [2024-10-24 23:33:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:34,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-10-24 23:33:34,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-10-24 23:33:34,987 INFO L175 Difference]: Start difference. First operand has 89 places, 56 transitions, 429 flow. Second operand 4 states and 90 transitions. [2024-10-24 23:33:34,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 73 transitions, 617 flow [2024-10-24 23:33:34,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 73 transitions, 562 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-10-24 23:33:34,992 INFO L231 Difference]: Finished difference. Result has 78 places, 55 transitions, 386 flow [2024-10-24 23:33:34,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=386, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2024-10-24 23:33:34,994 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 43 predicate places. [2024-10-24 23:33:34,995 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 386 flow [2024-10-24 23:33:34,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:34,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:34,996 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:35,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 23:33:35,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:35,196 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:35,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash -20583808, now seen corresponding path program 2 times [2024-10-24 23:33:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:35,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247528625] [2024-10-24 23:33:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:35,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:35,497 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 23:33:35,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:35,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247528625] [2024-10-24 23:33:35,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247528625] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:33:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926641486] [2024-10-24 23:33:35,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:33:35,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:33:35,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:35,500 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) [2024-10-24 23:33:35,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 23:33:35,811 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:33:35,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:33:35,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 23:33:35,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:33:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 23:33:35,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:33:35,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926641486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:35,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:33:35,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-24 23:33:35,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65495688] [2024-10-24 23:33:35,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:35,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:35,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:35,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 23:33:35,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-24 23:33:35,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 386 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-24 23:33:35,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:35,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-24 23:33:35,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:36,039 INFO L124 PetriNetUnfolderBase]: 194/485 cut-off events. [2024-10-24 23:33:36,039 INFO L125 PetriNetUnfolderBase]: For 1089/1089 co-relation queries the response was YES. [2024-10-24 23:33:36,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 485 events. 194/485 cut-off events. For 1089/1089 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1966 event pairs, 90 based on Foata normal form. 24/502 useless extension candidates. Maximal degree in co-relation 1355. Up to 252 conditions per place. [2024-10-24 23:33:36,043 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 58 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2024-10-24 23:33:36,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 71 transitions, 628 flow [2024-10-24 23:33:36,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:36,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-10-24 23:33:36,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5857142857142857 [2024-10-24 23:33:36,044 INFO L175 Difference]: Start difference. First operand has 78 places, 55 transitions, 386 flow. Second operand 4 states and 82 transitions. [2024-10-24 23:33:36,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 71 transitions, 628 flow [2024-10-24 23:33:36,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 598 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:36,049 INFO L231 Difference]: Finished difference. Result has 77 places, 53 transitions, 376 flow [2024-10-24 23:33:36,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=376, PETRI_PLACES=77, PETRI_TRANSITIONS=53} [2024-10-24 23:33:36,049 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 42 predicate places. [2024-10-24 23:33:36,049 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 53 transitions, 376 flow [2024-10-24 23:33:36,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-10-24 23:33:36,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:36,050 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:36,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 23:33:36,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 23:33:36,250 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:36,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:36,251 INFO L85 PathProgramCache]: Analyzing trace with hash -638097658, now seen corresponding path program 1 times [2024-10-24 23:33:36,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:36,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003170371] [2024-10-24 23:33:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:36,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:33:36,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:36,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003170371] [2024-10-24 23:33:36,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003170371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:36,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:36,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:36,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673406113] [2024-10-24 23:33:36,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:36,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:33:36,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:36,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:33:36,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:33:36,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-24 23:33:36,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 53 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:36,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:36,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-24 23:33:36,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:36,543 INFO L124 PetriNetUnfolderBase]: 170/466 cut-off events. [2024-10-24 23:33:36,543 INFO L125 PetriNetUnfolderBase]: For 892/892 co-relation queries the response was YES. [2024-10-24 23:33:36,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 466 events. 170/466 cut-off events. For 892/892 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1946 event pairs, 22 based on Foata normal form. 12/478 useless extension candidates. Maximal degree in co-relation 1219. Up to 264 conditions per place. [2024-10-24 23:33:36,547 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 49 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-10-24 23:33:36,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 62 transitions, 533 flow [2024-10-24 23:33:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:33:36,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:33:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-10-24 23:33:36,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-10-24 23:33:36,548 INFO L175 Difference]: Start difference. First operand has 77 places, 53 transitions, 376 flow. Second operand 3 states and 68 transitions. [2024-10-24 23:33:36,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 62 transitions, 533 flow [2024-10-24 23:33:36,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 62 transitions, 523 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:33:36,553 INFO L231 Difference]: Finished difference. Result has 76 places, 53 transitions, 378 flow [2024-10-24 23:33:36,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=76, PETRI_TRANSITIONS=53} [2024-10-24 23:33:36,555 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2024-10-24 23:33:36,555 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 53 transitions, 378 flow [2024-10-24 23:33:36,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:36,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:36,556 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:36,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 23:33:36,556 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:36,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash 416226247, now seen corresponding path program 1 times [2024-10-24 23:33:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:36,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191993077] [2024-10-24 23:33:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:33:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191993077] [2024-10-24 23:33:36,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191993077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:36,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:36,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:33:36,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511770390] [2024-10-24 23:33:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:36,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:36,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:36,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:36,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-10-24 23:33:36,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 53 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:36,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:36,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-10-24 23:33:36,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:36,974 INFO L124 PetriNetUnfolderBase]: 170/453 cut-off events. [2024-10-24 23:33:36,975 INFO L125 PetriNetUnfolderBase]: For 1029/1029 co-relation queries the response was YES. [2024-10-24 23:33:36,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 453 events. 170/453 cut-off events. For 1029/1029 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1831 event pairs, 66 based on Foata normal form. 12/460 useless extension candidates. Maximal degree in co-relation 1242. Up to 228 conditions per place. [2024-10-24 23:33:36,978 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 32 selfloop transitions, 27 changer transitions 3/70 dead transitions. [2024-10-24 23:33:36,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 70 transitions, 584 flow [2024-10-24 23:33:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-10-24 23:33:36,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-10-24 23:33:36,980 INFO L175 Difference]: Start difference. First operand has 76 places, 53 transitions, 378 flow. Second operand 4 states and 89 transitions. [2024-10-24 23:33:36,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 70 transitions, 584 flow [2024-10-24 23:33:36,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 70 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:36,984 INFO L231 Difference]: Finished difference. Result has 76 places, 51 transitions, 418 flow [2024-10-24 23:33:36,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=418, PETRI_PLACES=76, PETRI_TRANSITIONS=51} [2024-10-24 23:33:36,986 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2024-10-24 23:33:36,986 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 51 transitions, 418 flow [2024-10-24 23:33:36,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:36,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:36,986 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:36,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 23:33:36,987 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-24 23:33:36,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1292361239, now seen corresponding path program 1 times [2024-10-24 23:33:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:36,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195925789] [2024-10-24 23:33:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:36,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:33:37,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:37,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195925789] [2024-10-24 23:33:37,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195925789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:37,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:37,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:33:37,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196428231] [2024-10-24 23:33:37,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:37,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:37,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:37,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-10-24 23:33:37,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 51 transitions, 418 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:37,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:37,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-10-24 23:33:37,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:37,337 INFO L124 PetriNetUnfolderBase]: 158/413 cut-off events. [2024-10-24 23:33:37,338 INFO L125 PetriNetUnfolderBase]: For 1097/1097 co-relation queries the response was YES. [2024-10-24 23:33:37,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 413 events. 158/413 cut-off events. For 1097/1097 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1561 event pairs, 57 based on Foata normal form. 12/420 useless extension candidates. Maximal degree in co-relation 1170. Up to 216 conditions per place. [2024-10-24 23:33:37,340 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-10-24 23:33:37,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 68 transitions, 658 flow [2024-10-24 23:33:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-10-24 23:33:37,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-10-24 23:33:37,341 INFO L175 Difference]: Start difference. First operand has 76 places, 51 transitions, 418 flow. Second operand 4 states and 79 transitions. [2024-10-24 23:33:37,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 68 transitions, 658 flow [2024-10-24 23:33:37,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 582 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:33:37,345 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2024-10-24 23:33:37,345 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2024-10-24 23:33:37,345 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 38 predicate places. [2024-10-24 23:33:37,345 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2024-10-24 23:33:37,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:37,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-10-24 23:33:37,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-10-24 23:33:37,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-10-24 23:33:37,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-10-24 23:33:37,348 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-10-24 23:33:37,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-10-24 23:33:37,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 23:33:37,350 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:37,354 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:33:37,355 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:33:37,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:33:37 BasicIcfg [2024-10-24 23:33:37,359 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:33:37,360 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:33:37,360 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:33:37,360 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:33:37,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:27" (3/4) ... [2024-10-24 23:33:37,362 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:33:37,364 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 23:33:37,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-10-24 23:33:37,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-24 23:33:37,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 23:33:37,368 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 23:33:37,453 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:33:37,453 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:33:37,453 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:33:37,454 INFO L158 Benchmark]: Toolchain (without parser) took 11375.18ms. Allocated memory was 163.6MB in the beginning and 306.2MB in the end (delta: 142.6MB). Free memory was 103.6MB in the beginning and 120.0MB in the end (delta: -16.4MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,454 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:33:37,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 854.75ms. Allocated memory is still 163.6MB. Free memory was 103.2MB in the beginning and 108.2MB in the end (delta: -4.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.80ms. Allocated memory is still 163.6MB. Free memory was 108.2MB in the beginning and 105.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,455 INFO L158 Benchmark]: Boogie Preprocessor took 79.73ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 101.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,455 INFO L158 Benchmark]: RCFGBuilder took 817.35ms. Allocated memory is still 163.6MB. Free memory was 101.8MB in the beginning and 109.5MB in the end (delta: -7.7MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,455 INFO L158 Benchmark]: TraceAbstraction took 9457.16ms. Allocated memory was 163.6MB in the beginning and 306.2MB in the end (delta: 142.6MB). Free memory was 109.1MB in the beginning and 124.2MB in the end (delta: -15.1MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,456 INFO L158 Benchmark]: Witness Printer took 93.75ms. Allocated memory is still 306.2MB. Free memory was 124.2MB in the beginning and 120.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:33:37,458 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 854.75ms. Allocated memory is still 163.6MB. Free memory was 103.2MB in the beginning and 108.2MB in the end (delta: -4.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.80ms. Allocated memory is still 163.6MB. Free memory was 108.2MB in the beginning and 105.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.73ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 101.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 817.35ms. Allocated memory is still 163.6MB. Free memory was 101.8MB in the beginning and 109.5MB in the end (delta: -7.7MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9457.16ms. Allocated memory was 163.6MB in the beginning and 306.2MB in the end (delta: 142.6MB). Free memory was 109.1MB in the beginning and 124.2MB in the end (delta: -15.1MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. * Witness Printer took 93.75ms. Allocated memory is still 306.2MB. Free memory was 124.2MB in the beginning and 120.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 49 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.3s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 502 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 440 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1252 IncrementalHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 22 mSDtfsCounter, 1252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 236 SyntacticMatches, 11 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=9, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 557 NumberOfCodeBlocks, 530 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 1021 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2151 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 1100/1359 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:33:37,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE