./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 fca748b1 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-wip.dd.update-z3-fca748b-m [2024-11-20 21:54:00,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:54:00,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:54:00,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:54:00,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:54:00,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:54:00,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:54:00,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:54:00,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:54:00,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:54:00,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:54:00,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:54:00,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:54:00,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:54:00,937 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:54:00,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:54:00,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:54:00,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:54:00,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:54:00,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:54:00,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:54:00,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:54:00,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:54:00,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:54:00,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:54:00,942 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:54:00,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:54:00,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:54:00,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:54:00,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:54:00,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:54:00,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:54:00,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:54:00,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:54:00,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:54:00,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:54:00,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:54:00,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:54:00,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:54:00,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:54:00,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:54:00,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:54:00,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:54:00,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:54:00,948 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-20 21:54:01,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:54:01,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:54:01,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:54:01,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:54:01,239 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:54:01,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-20 21:54:02,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:54:02,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:54:02,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-20 21:54:03,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/341b80b63/5c6b3a04d57d4e0c85c6c22bdad7f775/FLAGeff0bebba [2024-11-20 21:54:03,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/341b80b63/5c6b3a04d57d4e0c85c6c22bdad7f775 [2024-11-20 21:54:03,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:54:03,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:54:03,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:54:03,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:54:03,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:54:03,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f013690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03, skipping insertion in model container [2024-11-20 21:54:03,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:54:03,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:54:03,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:54:03,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:54:03,809 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:54:03,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03 WrapperNode [2024-11-20 21:54:03,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:54:03,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:54:03,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:54:03,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:54:03,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,873 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 188 [2024-11-20 21:54:03,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:54:03,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:54:03,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:54:03,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:54:03,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,914 INFO L175 MemorySlicer]: Split 78 memory accesses to 3 slices as follows [50, 14, 14]. 64 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 11 writes are split as follows [0, 1, 10]. [2024-11-20 21:54:03,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:54:03,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:54:03,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:54:03,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:54:03,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (1/1) ... [2024-11-20 21:54:03,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:54:03,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:03,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 21:54:03,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 21:54:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 21:54:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 21:54:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 21:54:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 21:54:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 21:54:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:54:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 21:54:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 21:54:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:54:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:54:04,043 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:54:04,230 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:54:04,232 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:54:04,652 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:54:04,652 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:54:05,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:54:05,057 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 21:54:05,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:54:05 BoogieIcfgContainer [2024-11-20 21:54:05,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:54:05,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:54:05,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:54:05,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:54:05,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:54:03" (1/3) ... [2024-11-20 21:54:05,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1473de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:54:05, skipping insertion in model container [2024-11-20 21:54:05,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:54:03" (2/3) ... [2024-11-20 21:54:05,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1473de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:54:05, skipping insertion in model container [2024-11-20 21:54:05,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:54:05" (3/3) ... [2024-11-20 21:54:05,070 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-20 21:54:05,086 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:54:05,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-20 21:54:05,087 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:54:05,177 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 21:54:05,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 35 transitions, 74 flow [2024-11-20 21:54:05,243 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2024-11-20 21:54:05,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:54:05,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 3/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2024-11-20 21:54:05,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 35 transitions, 74 flow [2024-11-20 21:54:05,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 34 transitions, 71 flow [2024-11-20 21:54:05,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:54:05,265 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;@1166e5db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:54:05,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 21:54:05,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:54:05,271 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 21:54:05,272 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:54:05,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:05,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 21:54:05,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:05,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:05,278 INFO L85 PathProgramCache]: Analyzing trace with hash 491269, now seen corresponding path program 1 times [2024-11-20 21:54:05,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:05,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196202810] [2024-11-20 21:54:05,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:05,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:05,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:05,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196202810] [2024-11-20 21:54:05,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196202810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:05,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:05,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:54:05,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237046041] [2024-11-20 21:54:05,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:05,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:54:05,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:05,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:54:05,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:54:05,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-20 21:54:05,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:05,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:05,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-20 21:54:05,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:05,989 INFO L124 PetriNetUnfolderBase]: 86/246 cut-off events. [2024-11-20 21:54:05,989 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:54:05,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 246 events. 86/246 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 997 event pairs, 36 based on Foata normal form. 8/233 useless extension candidates. Maximal degree in co-relation 403. Up to 106 conditions per place. [2024-11-20 21:54:05,995 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 30 selfloop transitions, 5 changer transitions 0/48 dead transitions. [2024-11-20 21:54:05,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 169 flow [2024-11-20 21:54:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:54:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:54:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-20 21:54:06,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-20 21:54:06,009 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 71 flow. Second operand 4 states and 95 transitions. [2024-11-20 21:54:06,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 169 flow [2024-11-20 21:54:06,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:06,015 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 106 flow [2024-11-20 21:54:06,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2024-11-20 21:54:06,022 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-20 21:54:06,023 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 106 flow [2024-11-20 21:54:06,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:06,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:06,023 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 21:54:06,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:54:06,024 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:06,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:06,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1750983199, now seen corresponding path program 1 times [2024-11-20 21:54:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:06,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269986355] [2024-11-20 21:54:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:06,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:06,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269986355] [2024-11-20 21:54:06,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269986355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472750133] [2024-11-20 21:54:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:06,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:06,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:06,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:06,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 21:54:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:06,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:54:06,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:06,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:54:06,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472750133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:06,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:54:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 21:54:06,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875901691] [2024-11-20 21:54:06,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:06,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:54:06,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:54:06,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:54:06,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-20 21:54:06,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:06,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:06,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-20 21:54:06,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:06,692 INFO L124 PetriNetUnfolderBase]: 86/242 cut-off events. [2024-11-20 21:54:06,692 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-20 21:54:06,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 242 events. 86/242 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 961 event pairs, 0 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 446. Up to 92 conditions per place. [2024-11-20 21:54:06,699 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 34 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2024-11-20 21:54:06,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 220 flow [2024-11-20 21:54:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:54:06,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 21:54:06,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-20 21:54:06,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-20 21:54:06,704 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 106 flow. Second operand 6 states and 126 transitions. [2024-11-20 21:54:06,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 220 flow [2024-11-20 21:54:06,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:06,708 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 112 flow [2024-11-20 21:54:06,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-11-20 21:54:06,710 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-20 21:54:06,710 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 112 flow [2024-11-20 21:54:06,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:06,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:06,711 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 21:54:06,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 21:54:06,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:06,912 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:06,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1554095185, now seen corresponding path program 1 times [2024-11-20 21:54:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:06,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833284195] [2024-11-20 21:54:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:06,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:07,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:54:07,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:07,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833284195] [2024-11-20 21:54:07,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833284195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:07,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:07,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:54:07,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936740767] [2024-11-20 21:54:07,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:07,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:54:07,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:07,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:54:07,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:54:07,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-20 21:54:07,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:07,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:07,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-20 21:54:07,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:07,159 INFO L124 PetriNetUnfolderBase]: 86/254 cut-off events. [2024-11-20 21:54:07,160 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-20 21:54:07,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 254 events. 86/254 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1056 event pairs, 66 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 467. Up to 174 conditions per place. [2024-11-20 21:54:07,164 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2024-11-20 21:54:07,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 35 transitions, 152 flow [2024-11-20 21:54:07,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:54:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:54:07,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-20 21:54:07,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-11-20 21:54:07,167 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 112 flow. Second operand 3 states and 62 transitions. [2024-11-20 21:54:07,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 35 transitions, 152 flow [2024-11-20 21:54:07,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 140 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-20 21:54:07,169 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 104 flow [2024-11-20 21:54:07,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2024-11-20 21:54:07,170 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-20 21:54:07,171 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 104 flow [2024-11-20 21:54:07,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:07,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:07,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:07,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:54:07,172 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:07,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:07,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1237104365, now seen corresponding path program 1 times [2024-11-20 21:54:07,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:07,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21717800] [2024-11-20 21:54:07,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:07,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:07,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:07,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21717800] [2024-11-20 21:54:07,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21717800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:07,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726257495] [2024-11-20 21:54:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:07,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:07,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:07,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:07,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 21:54:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:07,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 21:54:07,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:54:07,418 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:54:07,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726257495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:07,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:54:07,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-20 21:54:07,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630455472] [2024-11-20 21:54:07,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:07,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:54:07,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:07,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:54:07,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:54:07,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-20 21:54:07,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:07,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:07,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-20 21:54:07,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:07,565 INFO L124 PetriNetUnfolderBase]: 194/520 cut-off events. [2024-11-20 21:54:07,566 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-20 21:54:07,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 520 events. 194/520 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2564 event pairs, 66 based on Foata normal form. 12/471 useless extension candidates. Maximal degree in co-relation 934. Up to 192 conditions per place. [2024-11-20 21:54:07,570 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 35 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-20 21:54:07,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 221 flow [2024-11-20 21:54:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:54:07,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:54:07,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-11-20 21:54:07,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2024-11-20 21:54:07,571 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 104 flow. Second operand 3 states and 78 transitions. [2024-11-20 21:54:07,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 221 flow [2024-11-20 21:54:07,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 213 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:07,573 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 126 flow [2024-11-20 21:54:07,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-11-20 21:54:07,574 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-20 21:54:07,575 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 126 flow [2024-11-20 21:54:07,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:07,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:07,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:07,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 21:54:07,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-20 21:54:07,776 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:07,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:07,777 INFO L85 PathProgramCache]: Analyzing trace with hash 304470855, now seen corresponding path program 1 times [2024-11-20 21:54:07,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:07,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985692730] [2024-11-20 21:54:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:07,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:07,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:07,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985692730] [2024-11-20 21:54:07,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985692730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:07,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536003125] [2024-11-20 21:54:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:07,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:07,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:07,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:07,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 21:54:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:07,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 21:54:07,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 21:54:08,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:54:08,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536003125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:08,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:54:08,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2024-11-20 21:54:08,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226704108] [2024-11-20 21:54:08,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:08,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:54:08,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:08,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:54:08,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:54:08,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-20 21:54:08,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:08,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:08,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-20 21:54:08,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:08,144 INFO L124 PetriNetUnfolderBase]: 170/496 cut-off events. [2024-11-20 21:54:08,145 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2024-11-20 21:54:08,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 496 events. 170/496 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2567 event pairs, 77 based on Foata normal form. 24/482 useless extension candidates. Maximal degree in co-relation 999. Up to 200 conditions per place. [2024-11-20 21:54:08,149 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 34 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-20 21:54:08,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 225 flow [2024-11-20 21:54:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:54:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:54:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-20 21:54:08,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-20 21:54:08,153 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 126 flow. Second operand 3 states and 77 transitions. [2024-11-20 21:54:08,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 225 flow [2024-11-20 21:54:08,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:08,156 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 116 flow [2024-11-20 21:54:08,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-20 21:54:08,157 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-20 21:54:08,157 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 116 flow [2024-11-20 21:54:08,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:08,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:08,158 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:08,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 21:54:08,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:08,359 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:08,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:08,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1301425, now seen corresponding path program 1 times [2024-11-20 21:54:08,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:08,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972250260] [2024-11-20 21:54:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:08,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:08,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:08,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972250260] [2024-11-20 21:54:08,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972250260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:08,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842545652] [2024-11-20 21:54:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:08,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:08,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:08,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:08,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 21:54:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:08,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 21:54:08,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:08,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:54:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:54:08,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842545652] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:54:08,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:54:08,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-20 21:54:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836705050] [2024-11-20 21:54:08,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:54:08,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 21:54:08,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 21:54:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 21:54:08,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-20 21:54:08,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 116 flow. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:08,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:08,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-20 21:54:08,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:09,017 INFO L124 PetriNetUnfolderBase]: 170/446 cut-off events. [2024-11-20 21:54:09,017 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-11-20 21:54:09,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 446 events. 170/446 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2110 event pairs, 22 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 907. Up to 145 conditions per place. [2024-11-20 21:54:09,019 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 37 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2024-11-20 21:54:09,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 294 flow [2024-11-20 21:54:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 21:54:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 21:54:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-11-20 21:54:09,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563265306122449 [2024-11-20 21:54:09,021 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 116 flow. Second operand 7 states and 138 transitions. [2024-11-20 21:54:09,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 294 flow [2024-11-20 21:54:09,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 21:54:09,023 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 178 flow [2024-11-20 21:54:09,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-11-20 21:54:09,023 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-20 21:54:09,024 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 178 flow [2024-11-20 21:54:09,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:09,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:09,024 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:09,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 21:54:09,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:09,225 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:09,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:09,226 INFO L85 PathProgramCache]: Analyzing trace with hash 237870449, now seen corresponding path program 2 times [2024-11-20 21:54:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237358769] [2024-11-20 21:54:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 21:54:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237358769] [2024-11-20 21:54:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237358769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:09,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:09,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:54:09,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648497721] [2024-11-20 21:54:09,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:09,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:54:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:09,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:54:09,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:54:09,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2024-11-20 21:54:09,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:09,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:09,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2024-11-20 21:54:09,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:09,556 INFO L124 PetriNetUnfolderBase]: 170/425 cut-off events. [2024-11-20 21:54:09,556 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2024-11-20 21:54:09,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 425 events. 170/425 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1937 event pairs, 88 based on Foata normal form. 24/440 useless extension candidates. Maximal degree in co-relation 973. Up to 225 conditions per place. [2024-11-20 21:54:09,559 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 43 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-11-20 21:54:09,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 60 transitions, 338 flow [2024-11-20 21:54:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:54:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:54:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2024-11-20 21:54:09,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-20 21:54:09,562 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 178 flow. Second operand 4 states and 100 transitions. [2024-11-20 21:54:09,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 60 transitions, 338 flow [2024-11-20 21:54:09,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 326 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:09,565 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 190 flow [2024-11-20 21:54:09,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-11-20 21:54:09,568 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2024-11-20 21:54:09,568 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 190 flow [2024-11-20 21:54:09,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:09,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:09,568 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:09,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 21:54:09,568 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:09,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash -769618986, now seen corresponding path program 1 times [2024-11-20 21:54:09,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:09,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881044142] [2024-11-20 21:54:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:09,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 21:54:09,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881044142] [2024-11-20 21:54:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881044142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:09,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:54:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657690509] [2024-11-20 21:54:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:09,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:54:09,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:54:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:54:09,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-20 21:54:09,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:09,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:09,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-20 21:54:09,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:09,910 INFO L124 PetriNetUnfolderBase]: 194/493 cut-off events. [2024-11-20 21:54:09,910 INFO L125 PetriNetUnfolderBase]: For 581/581 co-relation queries the response was YES. [2024-11-20 21:54:09,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 493 events. 194/493 cut-off events. For 581/581 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2334 event pairs, 112 based on Foata normal form. 24/506 useless extension candidates. Maximal degree in co-relation 1230. Up to 275 conditions per place. [2024-11-20 21:54:09,914 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 50 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2024-11-20 21:54:09,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 63 transitions, 394 flow [2024-11-20 21:54:09,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:54:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:54:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-20 21:54:09,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-20 21:54:09,915 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 190 flow. Second operand 4 states and 92 transitions. [2024-11-20 21:54:09,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 63 transitions, 394 flow [2024-11-20 21:54:09,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 63 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:54:09,918 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 204 flow [2024-11-20 21:54:09,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2024-11-20 21:54:09,919 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2024-11-20 21:54:09,919 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 204 flow [2024-11-20 21:54:09,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:09,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:09,919 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:09,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 21:54:09,920 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:09,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:09,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1036310670, now seen corresponding path program 1 times [2024-11-20 21:54:09,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:09,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220783823] [2024-11-20 21:54:09,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:09,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 21:54:10,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220783823] [2024-11-20 21:54:10,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220783823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523034608] [2024-11-20 21:54:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:10,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:10,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:10,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 21:54:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:10,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 21:54:10,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 21:54:10,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:54:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 21:54:10,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523034608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:54:10,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:54:10,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 19 [2024-11-20 21:54:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572635152] [2024-11-20 21:54:10,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:54:10,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 21:54:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 21:54:10,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-20 21:54:10,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 35 [2024-11-20 21:54:10,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 204 flow. Second operand has 19 states, 19 states have (on average 10.947368421052632) internal successors, (208), 19 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:10,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:10,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 35 [2024-11-20 21:54:10,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:11,442 INFO L124 PetriNetUnfolderBase]: 352/839 cut-off events. [2024-11-20 21:54:11,442 INFO L125 PetriNetUnfolderBase]: For 1079/1079 co-relation queries the response was YES. [2024-11-20 21:54:11,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 839 events. 352/839 cut-off events. For 1079/1079 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4051 event pairs, 16 based on Foata normal form. 18/854 useless extension candidates. Maximal degree in co-relation 2203. Up to 120 conditions per place. [2024-11-20 21:54:11,448 INFO L140 encePairwiseOnDemand]: 22/35 looper letters, 100 selfloop transitions, 49 changer transitions 0/157 dead transitions. [2024-11-20 21:54:11,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 157 transitions, 985 flow [2024-11-20 21:54:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 21:54:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-20 21:54:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 372 transitions. [2024-11-20 21:54:11,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2024-11-20 21:54:11,451 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 204 flow. Second operand 24 states and 372 transitions. [2024-11-20 21:54:11,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 157 transitions, 985 flow [2024-11-20 21:54:11,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 157 transitions, 952 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 21:54:11,456 INFO L231 Difference]: Finished difference. Result has 86 places, 77 transitions, 606 flow [2024-11-20 21:54:11,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=606, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2024-11-20 21:54:11,457 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 51 predicate places. [2024-11-20 21:54:11,457 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 77 transitions, 606 flow [2024-11-20 21:54:11,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.947368421052632) internal successors, (208), 19 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:11,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:11,458 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:11,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 21:54:11,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:11,662 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)] === [2024-11-20 21:54:11,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1487707354, now seen corresponding path program 1 times [2024-11-20 21:54:11,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:11,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973217810] [2024-11-20 21:54:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:11,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-20 21:54:12,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:12,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973217810] [2024-11-20 21:54:12,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973217810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:12,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280307443] [2024-11-20 21:54:12,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:12,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:12,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:12,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:12,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 21:54:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:12,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 21:54:12,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-20 21:54:12,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:54:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-20 21:54:12,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280307443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:54:12,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:54:12,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-20 21:54:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316536615] [2024-11-20 21:54:12,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:54:12,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 21:54:12,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:12,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 21:54:12,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 21:54:12,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-20 21:54:12,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 77 transitions, 606 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) [2024-11-20 21:54:12,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:12,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-20 21:54:12,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:13,205 INFO L124 PetriNetUnfolderBase]: 258/687 cut-off events. [2024-11-20 21:54:13,205 INFO L125 PetriNetUnfolderBase]: For 1787/1790 co-relation queries the response was YES. [2024-11-20 21:54:13,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2153 conditions, 687 events. 258/687 cut-off events. For 1787/1790 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3185 event pairs, 76 based on Foata normal form. 5/685 useless extension candidates. Maximal degree in co-relation 1963. Up to 211 conditions per place. [2024-11-20 21:54:13,211 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 46 selfloop transitions, 37 changer transitions 0/98 dead transitions. [2024-11-20 21:54:13,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 914 flow [2024-11-20 21:54:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 21:54:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 21:54:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 335 transitions. [2024-11-20 21:54:13,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4557823129251701 [2024-11-20 21:54:13,214 INFO L175 Difference]: Start difference. First operand has 86 places, 77 transitions, 606 flow. Second operand 21 states and 335 transitions. [2024-11-20 21:54:13,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 914 flow [2024-11-20 21:54:13,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 876 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-20 21:54:13,224 INFO L231 Difference]: Finished difference. Result has 103 places, 83 transitions, 743 flow [2024-11-20 21:54:13,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=743, PETRI_PLACES=103, PETRI_TRANSITIONS=83} [2024-11-20 21:54:13,225 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 68 predicate places. [2024-11-20 21:54:13,226 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 83 transitions, 743 flow [2024-11-20 21:54:13,227 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) [2024-11-20 21:54:13,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:13,227 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:13,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 21:54:13,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:13,432 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:13,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:13,432 INFO L85 PathProgramCache]: Analyzing trace with hash 104823692, now seen corresponding path program 2 times [2024-11-20 21:54:13,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:13,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468432403] [2024-11-20 21:54:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:13,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:13,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:13,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468432403] [2024-11-20 21:54:13,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468432403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:13,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500173345] [2024-11-20 21:54:13,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 21:54:13,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:13,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:13,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:13,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 21:54:14,128 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 21:54:14,129 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 21:54:14,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 21:54:14,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:14,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:54:14,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500173345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:14,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:54:14,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-20 21:54:14,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482381445] [2024-11-20 21:54:14,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:14,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 21:54:14,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:14,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 21:54:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:54:14,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-20 21:54:14,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 83 transitions, 743 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) [2024-11-20 21:54:14,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:14,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-20 21:54:14,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:14,377 INFO L124 PetriNetUnfolderBase]: 281/691 cut-off events. [2024-11-20 21:54:14,378 INFO L125 PetriNetUnfolderBase]: For 1813/1819 co-relation queries the response was YES. [2024-11-20 21:54:14,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 691 events. 281/691 cut-off events. For 1813/1819 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3147 event pairs, 90 based on Foata normal form. 23/702 useless extension candidates. Maximal degree in co-relation 2000. Up to 325 conditions per place. [2024-11-20 21:54:14,384 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 76 selfloop transitions, 14 changer transitions 2/109 dead transitions. [2024-11-20 21:54:14,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 109 transitions, 1092 flow [2024-11-20 21:54:14,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:54:14,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:54:14,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-20 21:54:14,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-20 21:54:14,385 INFO L175 Difference]: Start difference. First operand has 103 places, 83 transitions, 743 flow. Second operand 4 states and 90 transitions. [2024-11-20 21:54:14,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 109 transitions, 1092 flow [2024-11-20 21:54:14,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 109 transitions, 1019 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-20 21:54:14,394 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 694 flow [2024-11-20 21:54:14,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=694, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2024-11-20 21:54:14,395 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 57 predicate places. [2024-11-20 21:54:14,395 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 694 flow [2024-11-20 21:54:14,395 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) [2024-11-20 21:54:14,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:14,395 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:14,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 21:54:14,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:14,600 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:14,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1045432377, now seen corresponding path program 1 times [2024-11-20 21:54:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:14,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142171976] [2024-11-20 21:54:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 21:54:14,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:14,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142171976] [2024-11-20 21:54:14,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142171976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:14,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:14,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:54:14,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892497633] [2024-11-20 21:54:14,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:14,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:54:14,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:14,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:54:14,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:54:14,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-20 21:54:14,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 694 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:14,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:14,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-20 21:54:14,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:15,089 INFO L124 PetriNetUnfolderBase]: 258/653 cut-off events. [2024-11-20 21:54:15,089 INFO L125 PetriNetUnfolderBase]: For 2124/2127 co-relation queries the response was YES. [2024-11-20 21:54:15,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 653 events. 258/653 cut-off events. For 2124/2127 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2919 event pairs, 65 based on Foata normal form. 19/662 useless extension candidates. Maximal degree in co-relation 1966. Up to 327 conditions per place. [2024-11-20 21:54:15,095 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 43 selfloop transitions, 39 changer transitions 8/103 dead transitions. [2024-11-20 21:54:15,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 103 transitions, 1002 flow [2024-11-20 21:54:15,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:54:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:54:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-20 21:54:15,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-20 21:54:15,096 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 694 flow. Second operand 4 states and 89 transitions. [2024-11-20 21:54:15,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 103 transitions, 1002 flow [2024-11-20 21:54:15,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 103 transitions, 973 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 21:54:15,106 INFO L231 Difference]: Finished difference. Result has 91 places, 77 transitions, 709 flow [2024-11-20 21:54:15,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=709, PETRI_PLACES=91, PETRI_TRANSITIONS=77} [2024-11-20 21:54:15,108 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 56 predicate places. [2024-11-20 21:54:15,108 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 77 transitions, 709 flow [2024-11-20 21:54:15,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:15,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:15,110 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:15,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 21:54:15,110 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:15,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:15,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2099756282, now seen corresponding path program 1 times [2024-11-20 21:54:15,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:15,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134385953] [2024-11-20 21:54:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 21:54:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134385953] [2024-11-20 21:54:15,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134385953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:15,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:15,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:54:15,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592991995] [2024-11-20 21:54:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:15,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 21:54:15,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:15,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 21:54:15,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 21:54:15,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-20 21:54:15,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 77 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:15,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:15,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-20 21:54:15,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:15,445 INFO L124 PetriNetUnfolderBase]: 246/676 cut-off events. [2024-11-20 21:54:15,445 INFO L125 PetriNetUnfolderBase]: For 2308/2310 co-relation queries the response was YES. [2024-11-20 21:54:15,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 676 events. 246/676 cut-off events. For 2308/2310 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3051 event pairs, 98 based on Foata normal form. 26/697 useless extension candidates. Maximal degree in co-relation 1937. Up to 410 conditions per place. [2024-11-20 21:54:15,451 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 63 selfloop transitions, 11 changer transitions 0/86 dead transitions. [2024-11-20 21:54:15,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 86 transitions, 933 flow [2024-11-20 21:54:15,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 21:54:15,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 21:54:15,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-20 21:54:15,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-20 21:54:15,452 INFO L175 Difference]: Start difference. First operand has 91 places, 77 transitions, 709 flow. Second operand 3 states and 68 transitions. [2024-11-20 21:54:15,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 86 transitions, 933 flow [2024-11-20 21:54:15,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 86 transitions, 807 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-20 21:54:15,460 INFO L231 Difference]: Finished difference. Result has 87 places, 74 transitions, 611 flow [2024-11-20 21:54:15,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=87, PETRI_TRANSITIONS=74} [2024-11-20 21:54:15,461 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2024-11-20 21:54:15,461 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 74 transitions, 611 flow [2024-11-20 21:54:15,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:15,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:15,462 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:15,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 21:54:15,463 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:15,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1935194633, now seen corresponding path program 1 times [2024-11-20 21:54:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317308621] [2024-11-20 21:54:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:15,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:15,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317308621] [2024-11-20 21:54:15,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317308621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:54:15,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407155996] [2024-11-20 21:54:15,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:15,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:54:15,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:54:15,753 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 21:54:15,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 21:54:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:16,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:54:16,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:54:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-20 21:54:16,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:54:16,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407155996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:16,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:54:16,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 21:54:16,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044190198] [2024-11-20 21:54:16,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:16,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:54:16,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:16,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:54:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:54:16,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2024-11-20 21:54:16,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 74 transitions, 611 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:16,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:16,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2024-11-20 21:54:16,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:16,471 INFO L124 PetriNetUnfolderBase]: 222/616 cut-off events. [2024-11-20 21:54:16,471 INFO L125 PetriNetUnfolderBase]: For 1743/1747 co-relation queries the response was YES. [2024-11-20 21:54:16,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 616 events. 222/616 cut-off events. For 1743/1747 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2573 event pairs, 12 based on Foata normal form. 40/655 useless extension candidates. Maximal degree in co-relation 1677. Up to 206 conditions per place. [2024-11-20 21:54:16,476 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 82 selfloop transitions, 14 changer transitions 0/108 dead transitions. [2024-11-20 21:54:16,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 108 transitions, 966 flow [2024-11-20 21:54:16,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:54:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 21:54:16,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-20 21:54:16,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-20 21:54:16,478 INFO L175 Difference]: Start difference. First operand has 87 places, 74 transitions, 611 flow. Second operand 6 states and 126 transitions. [2024-11-20 21:54:16,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 108 transitions, 966 flow [2024-11-20 21:54:16,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 108 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 21:54:16,483 INFO L231 Difference]: Finished difference. Result has 88 places, 72 transitions, 607 flow [2024-11-20 21:54:16,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=607, PETRI_PLACES=88, PETRI_TRANSITIONS=72} [2024-11-20 21:54:16,484 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 53 predicate places. [2024-11-20 21:54:16,484 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 72 transitions, 607 flow [2024-11-20 21:54:16,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:16,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:54:16,485 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:16,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 21:54:16,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-20 21:54:16,689 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-20 21:54:16,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:54:16,690 INFO L85 PathProgramCache]: Analyzing trace with hash 138509033, now seen corresponding path program 1 times [2024-11-20 21:54:16,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:54:16,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591206052] [2024-11-20 21:54:16,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:54:16,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:54:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:54:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-20 21:54:16,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:54:16,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591206052] [2024-11-20 21:54:16,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591206052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:54:16,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:54:16,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 21:54:16,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249859913] [2024-11-20 21:54:16,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:54:16,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:54:16,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:54:16,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:54:16,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:54:16,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-20 21:54:16,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 72 transitions, 607 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:16,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:54:16,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-20 21:54:16,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:54:17,051 INFO L124 PetriNetUnfolderBase]: 234/615 cut-off events. [2024-11-20 21:54:17,051 INFO L125 PetriNetUnfolderBase]: For 1677/1678 co-relation queries the response was YES. [2024-11-20 21:54:17,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 615 events. 234/615 cut-off events. For 1677/1678 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2558 event pairs, 39 based on Foata normal form. 25/637 useless extension candidates. Maximal degree in co-relation 1736. Up to 313 conditions per place. [2024-11-20 21:54:17,054 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2024-11-20 21:54:17,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 939 flow [2024-11-20 21:54:17,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:54:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:54:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-20 21:54:17,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-11-20 21:54:17,056 INFO L175 Difference]: Start difference. First operand has 88 places, 72 transitions, 607 flow. Second operand 4 states and 79 transitions. [2024-11-20 21:54:17,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 939 flow [2024-11-20 21:54:17,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 95 transitions, 902 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-20 21:54:17,062 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2024-11-20 21:54:17,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2024-11-20 21:54:17,063 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2024-11-20 21:54:17,063 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2024-11-20 21:54:17,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 21:54:17,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-20 21:54:17,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-20 21:54:17,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-20 21:54:17,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-20 21:54:17,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-20 21:54:17,068 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-20 21:54:17,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-20 21:54:17,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 21:54:17,070 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:54:17,075 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 21:54:17,075 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 21:54:17,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:54:17 BasicIcfg [2024-11-20 21:54:17,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 21:54:17,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 21:54:17,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 21:54:17,080 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 21:54:17,080 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:54:05" (3/4) ... [2024-11-20 21:54:17,083 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 21:54:17,086 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-20 21:54:17,091 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 99 nodes and edges [2024-11-20 21:54:17,092 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-20 21:54:17,092 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 21:54:17,092 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 21:54:17,186 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 21:54:17,187 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 21:54:17,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 21:54:17,187 INFO L158 Benchmark]: Toolchain (without parser) took 14152.68ms. Allocated memory was 192.9MB in the beginning and 402.7MB in the end (delta: 209.7MB). Free memory was 160.5MB in the beginning and 262.9MB in the end (delta: -102.4MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,188 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 130.0MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 21:54:17,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.13ms. Allocated memory is still 192.9MB. Free memory was 163.0MB in the beginning and 119.9MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.17ms. Allocated memory is still 192.9MB. Free memory was 119.9MB in the beginning and 115.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,189 INFO L158 Benchmark]: Boogie Preprocessor took 68.52ms. Allocated memory is still 192.9MB. Free memory was 115.8MB in the beginning and 111.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,189 INFO L158 Benchmark]: RCFGBuilder took 1113.67ms. Allocated memory is still 192.9MB. Free memory was 111.8MB in the beginning and 70.7MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,189 INFO L158 Benchmark]: TraceAbstraction took 12017.87ms. Allocated memory was 192.9MB in the beginning and 402.7MB in the end (delta: 209.7MB). Free memory was 70.7MB in the beginning and 268.1MB in the end (delta: -197.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,190 INFO L158 Benchmark]: Witness Printer took 107.21ms. Allocated memory is still 402.7MB. Free memory was 268.1MB in the beginning and 262.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 21:54:17,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 130.0MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.13ms. Allocated memory is still 192.9MB. Free memory was 163.0MB in the beginning and 119.9MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.17ms. Allocated memory is still 192.9MB. Free memory was 119.9MB in the beginning and 115.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.52ms. Allocated memory is still 192.9MB. Free memory was 115.8MB in the beginning and 111.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1113.67ms. Allocated memory is still 192.9MB. Free memory was 111.8MB in the beginning and 70.7MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12017.87ms. Allocated memory was 192.9MB in the beginning and 402.7MB in the end (delta: 209.7MB). Free memory was 70.7MB in the beginning and 268.1MB in the end (delta: -197.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 107.21ms. Allocated memory is still 402.7MB. Free memory was 268.1MB in the beginning and 262.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 11.9s, OverallIterations: 15, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 666 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 587 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 334 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2003 IncrementalHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 42 mSDtfsCounter, 2003 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 241 SyntacticMatches, 11 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=10, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4098 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 1119/1378 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 21:54:17,212 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