./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/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d 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/28-race_reach_90-arrayloop2_racing.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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:44:14,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:44:15,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:44:15,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:44:15,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:44:15,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:44:15,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:44:15,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:44:15,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:44:15,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:44:15,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:44:15,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:44:15,068 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:44:15,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:44:15,068 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:44:15,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:44:15,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:44:15,072 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:44:15,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:44:15,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:44:15,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:44:15,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:44:15,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:44:15,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:44:15,077 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:44:15,078 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:44:15,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:44:15,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:44:15,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:44:15,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:44:15,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:44:15,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:44:15,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:44:15,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:44:15,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:44:15,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:44:15,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:44:15,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:44:15,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:44:15,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:44:15,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:44:15,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:44:15,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:44:15,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:44:15,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-10-13 16:44:15,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:44:15,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:44:15,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:44:15,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:44:15,345 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:44:15,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-13 16:44:16,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:44:17,011 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:44:17,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-13 16:44:17,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c45eb829/18046d6290f34d2e8b8bfcc79323a9a7/FLAG1d8e034ce [2024-10-13 16:44:17,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c45eb829/18046d6290f34d2e8b8bfcc79323a9a7 [2024-10-13 16:44:17,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:44:17,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:44:17,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:44:17,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:44:17,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:44:17,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fdf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17, skipping insertion in model container [2024-10-13 16:44:17,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:44:17,566 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,568 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,568 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,569 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:44:17,636 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:44:17,692 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,693 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,694 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,695 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 16:44:17,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:44:17,790 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:44:17,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17 WrapperNode [2024-10-13 16:44:17,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:44:17,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:44:17,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:44:17,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:44:17,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,859 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 360 [2024-10-13 16:44:17,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:44:17,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:44:17,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:44:17,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:44:17,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,907 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,933 INFO L175 MemorySlicer]: Split 37 memory accesses to 5 slices as follows [2, 5, 2, 26, 2]. 70 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0]. The 17 writes are split as follows [0, 0, 1, 15, 1]. [2024-10-13 16:44:17,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:17,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:44:17,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:44:17,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:44:17,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:44:17,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (1/1) ... [2024-10-13 16:44:18,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:44:18,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:18,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 16:44:18,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 16:44:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 16:44:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 16:44:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 16:44:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 16:44:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 16:44:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-13 16:44:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 16:44:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-13 16:44:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 16:44:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 16:44:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 16:44:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 16:44:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:44:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:44:18,081 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:44:18,270 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:44:18,271 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:44:18,766 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:44:18,766 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:44:19,037 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:44:19,038 INFO L314 CfgBuilder]: Removed 30 assume(true) statements. [2024-10-13 16:44:19,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:44:19 BoogieIcfgContainer [2024-10-13 16:44:19,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:44:19,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:44:19,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:44:19,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:44:19,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:44:17" (1/3) ... [2024-10-13 16:44:19,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2992a2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:44:19, skipping insertion in model container [2024-10-13 16:44:19,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:44:17" (2/3) ... [2024-10-13 16:44:19,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2992a2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:44:19, skipping insertion in model container [2024-10-13 16:44:19,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:44:19" (3/3) ... [2024-10-13 16:44:19,047 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-10-13 16:44:19,062 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:44:19,062 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-13 16:44:19,062 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:44:19,179 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 16:44:19,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2024-10-13 16:44:19,297 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2024-10-13 16:44:19,297 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 16:44:19,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 49/279 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1377 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 156. Up to 8 conditions per place. [2024-10-13 16:44:19,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2024-10-13 16:44:19,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2024-10-13 16:44:19,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:44:19,338 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;@11c8acea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:44:19,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-10-13 16:44:19,342 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:44:19,342 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-10-13 16:44:19,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:44:19,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:19,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 16:44:19,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:19,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:19,349 INFO L85 PathProgramCache]: Analyzing trace with hash 28723099, now seen corresponding path program 1 times [2024-10-13 16:44:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:19,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714930501] [2024-10-13 16:44:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:19,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 16:44:19,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466302963] [2024-10-13 16:44:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:19,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:19,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:44:19,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:44:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:19,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 16:44:19,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:19,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:44:19,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:19,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714930501] [2024-10-13 16:44:19,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 16:44:19,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466302963] [2024-10-13 16:44:19,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466302963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:19,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:44:19,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:44:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217268160] [2024-10-13 16:44:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:19,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:44:19,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:19,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:44:19,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:44:19,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-10-13 16:44:19,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:19,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:19,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-10-13 16:44:19,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:21,906 INFO L124 PetriNetUnfolderBase]: 8567/18653 cut-off events. [2024-10-13 16:44:21,906 INFO L125 PetriNetUnfolderBase]: For 265/265 co-relation queries the response was YES. [2024-10-13 16:44:21,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31504 conditions, 18653 events. 8567/18653 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 169999 event pairs, 7350 based on Foata normal form. 2268/17596 useless extension candidates. Maximal degree in co-relation 30100. Up to 12703 conditions per place. [2024-10-13 16:44:22,055 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 76 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2024-10-13 16:44:22,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 480 flow [2024-10-13 16:44:22,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:44:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:44:22,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-10-13 16:44:22,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447105788423154 [2024-10-13 16:44:22,071 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 323 transitions. [2024-10-13 16:44:22,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 480 flow [2024-10-13 16:44:22,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:44:22,084 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2024-10-13 16:44:22,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-10-13 16:44:22,090 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2024-10-13 16:44:22,092 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2024-10-13 16:44:22,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:22,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:22,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 16:44:22,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:44:22,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-13 16:44:22,298 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:22,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:22,299 INFO L85 PathProgramCache]: Analyzing trace with hash 28723147, now seen corresponding path program 1 times [2024-10-13 16:44:22,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:22,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955064553] [2024-10-13 16:44:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:22,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:22,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:22,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955064553] [2024-10-13 16:44:22,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955064553] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:22,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:44:22,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:44:22,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469962863] [2024-10-13 16:44:22,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:22,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:44:22,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:22,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:44:22,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:44:22,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-10-13 16:44:22,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:22,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:22,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-10-13 16:44:22,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:24,386 INFO L124 PetriNetUnfolderBase]: 8567/18667 cut-off events. [2024-10-13 16:44:24,386 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-10-13 16:44:24,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31531 conditions, 18667 events. 8567/18667 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170092 event pairs, 7350 based on Foata normal form. 4/15346 useless extension candidates. Maximal degree in co-relation 31493. Up to 12708 conditions per place. [2024-10-13 16:44:24,529 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-10-13 16:44:24,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 486 flow [2024-10-13 16:44:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:44:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:44:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-10-13 16:44:24,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988023952095808 [2024-10-13 16:44:24,532 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 300 transitions. [2024-10-13 16:44:24,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 486 flow [2024-10-13 16:44:24,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:44:24,537 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2024-10-13 16:44:24,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2024-10-13 16:44:24,539 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-10-13 16:44:24,539 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2024-10-13 16:44:24,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:24,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:24,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:44:24,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:44:24,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:24,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:24,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1833125160, now seen corresponding path program 1 times [2024-10-13 16:44:24,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:24,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067649918] [2024-10-13 16:44:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:24,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:24,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067649918] [2024-10-13 16:44:24,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067649918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:24,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:44:24,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:44:24,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251001178] [2024-10-13 16:44:24,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:24,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:44:24,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:24,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:44:24,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:44:24,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-13 16:44:24,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:24,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:24,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-13 16:44:24,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:26,495 INFO L124 PetriNetUnfolderBase]: 8567/18663 cut-off events. [2024-10-13 16:44:26,495 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-13 16:44:26,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31543 conditions, 18663 events. 8567/18663 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170093 event pairs, 7350 based on Foata normal form. 4/15346 useless extension candidates. Maximal degree in co-relation 31480. Up to 12712 conditions per place. [2024-10-13 16:44:26,634 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 75 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2024-10-13 16:44:26,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 502 flow [2024-10-13 16:44:26,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:44:26,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:44:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-10-13 16:44:26,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5494011976047904 [2024-10-13 16:44:26,637 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 367 transitions. [2024-10-13 16:44:26,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 502 flow [2024-10-13 16:44:26,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:44:26,643 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2024-10-13 16:44:26,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=149, PETRI_TRANSITIONS=150} [2024-10-13 16:44:26,645 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2024-10-13 16:44:26,646 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2024-10-13 16:44:26,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:26,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:26,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:44:26,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:44:26,647 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:26,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash 123524072, now seen corresponding path program 1 times [2024-10-13 16:44:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:26,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885074654] [2024-10-13 16:44:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:44:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885074654] [2024-10-13 16:44:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885074654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:26,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:44:26,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:44:26,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466542] [2024-10-13 16:44:26,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:44:26,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:26,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:44:26,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:44:26,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-13 16:44:26,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 150 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:26,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:26,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-13 16:44:26,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:28,446 INFO L124 PetriNetUnfolderBase]: 8567/18661 cut-off events. [2024-10-13 16:44:28,447 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-10-13 16:44:28,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31555 conditions, 18661 events. 8567/18661 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170086 event pairs, 7350 based on Foata normal form. 2/15344 useless extension candidates. Maximal degree in co-relation 31481. Up to 12707 conditions per place. [2024-10-13 16:44:28,571 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 81 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-10-13 16:44:28,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 560 flow [2024-10-13 16:44:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:44:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:44:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-10-13 16:44:28,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5538922155688623 [2024-10-13 16:44:28,574 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 4 states and 370 transitions. [2024-10-13 16:44:28,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 560 flow [2024-10-13 16:44:28,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:44:28,584 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 376 flow [2024-10-13 16:44:28,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=376, PETRI_PLACES=152, PETRI_TRANSITIONS=151} [2024-10-13 16:44:28,586 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-10-13 16:44:28,586 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 376 flow [2024-10-13 16:44:28,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:28,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:28,587 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:44:28,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:44:28,588 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:28,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1552466427, now seen corresponding path program 1 times [2024-10-13 16:44:28,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:28,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875262448] [2024-10-13 16:44:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:28,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:28,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:28,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875262448] [2024-10-13 16:44:28,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875262448] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:44:28,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359660951] [2024-10-13 16:44:28,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:28,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:28,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:28,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:44:28,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:44:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:29,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:44:29,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:29,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:44:29,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359660951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:29,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:44:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-13 16:44:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559200734] [2024-10-13 16:44:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:29,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:44:29,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:44:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:44:29,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-13 16:44:29,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 151 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:29,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:29,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-13 16:44:29,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:30,708 INFO L124 PetriNetUnfolderBase]: 8567/18659 cut-off events. [2024-10-13 16:44:30,708 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2024-10-13 16:44:30,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31557 conditions, 18659 events. 8567/18659 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170051 event pairs, 7350 based on Foata normal form. 2/15342 useless extension candidates. Maximal degree in co-relation 31505. Up to 12700 conditions per place. [2024-10-13 16:44:30,814 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-10-13 16:44:30,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 528 flow [2024-10-13 16:44:30,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:44:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:44:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-10-13 16:44:30,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5079840319361277 [2024-10-13 16:44:30,817 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 376 flow. Second operand 6 states and 509 transitions. [2024-10-13 16:44:30,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 528 flow [2024-10-13 16:44:30,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 150 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:44:30,821 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 382 flow [2024-10-13 16:44:30,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=382, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2024-10-13 16:44:30,822 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2024-10-13 16:44:30,822 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 382 flow [2024-10-13 16:44:30,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:30,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:30,823 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-10-13 16:44:30,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 16:44:31,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:31,024 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:31,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:31,024 INFO L85 PathProgramCache]: Analyzing trace with hash -881817919, now seen corresponding path program 1 times [2024-10-13 16:44:31,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:31,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354263089] [2024-10-13 16:44:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:31,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:44:31,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:31,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354263089] [2024-10-13 16:44:31,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354263089] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:31,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:44:31,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:44:31,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864418264] [2024-10-13 16:44:31,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:31,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:44:31,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:31,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:44:31,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:44:31,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-10-13 16:44:31,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:31,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:31,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-10-13 16:44:31,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:32,731 INFO L124 PetriNetUnfolderBase]: 8567/18657 cut-off events. [2024-10-13 16:44:32,731 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-10-13 16:44:32,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31563 conditions, 18657 events. 8567/18657 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170088 event pairs, 7350 based on Foata normal form. 2/15340 useless extension candidates. Maximal degree in co-relation 31504. Up to 12704 conditions per place. [2024-10-13 16:44:32,835 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-10-13 16:44:32,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 534 flow [2024-10-13 16:44:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:44:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:44:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-10-13 16:44:32,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-10-13 16:44:32,837 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 382 flow. Second operand 4 states and 366 transitions. [2024-10-13 16:44:32,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 534 flow [2024-10-13 16:44:32,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 519 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-13 16:44:32,842 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 383 flow [2024-10-13 16:44:32,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2024-10-13 16:44:32,843 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-10-13 16:44:32,843 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 383 flow [2024-10-13 16:44:32,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:32,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:32,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:44:32,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:44:32,844 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:32,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:32,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1602199158, now seen corresponding path program 1 times [2024-10-13 16:44:32,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:32,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744642195] [2024-10-13 16:44:32,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:32,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:32,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:32,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744642195] [2024-10-13 16:44:32,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744642195] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:44:32,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199620209] [2024-10-13 16:44:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:32,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:32,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:32,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:44:32,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 16:44:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:33,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:44:33,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:33,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:44:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:44:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199620209] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:44:33,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:44:33,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 16:44:33,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992329390] [2024-10-13 16:44:33,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:44:33,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 16:44:33,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:33,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 16:44:33,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:44:33,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-13 16:44:33,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 150 transitions, 383 flow. Second operand has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:33,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:33,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-13 16:44:33,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:34,981 INFO L124 PetriNetUnfolderBase]: 8567/18671 cut-off events. [2024-10-13 16:44:34,982 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2024-10-13 16:44:35,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31611 conditions, 18671 events. 8567/18671 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170225 event pairs, 7350 based on Foata normal form. 4/15356 useless extension candidates. Maximal degree in co-relation 31534. Up to 12702 conditions per place. [2024-10-13 16:44:35,073 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 78 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-10-13 16:44:35,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 156 transitions, 588 flow [2024-10-13 16:44:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:44:35,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:44:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2024-10-13 16:44:35,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49786142001710865 [2024-10-13 16:44:35,076 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 383 flow. Second operand 7 states and 582 transitions. [2024-10-13 16:44:35,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 156 transitions, 588 flow [2024-10-13 16:44:35,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:44:35,080 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 423 flow [2024-10-13 16:44:35,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2024-10-13 16:44:35,081 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-10-13 16:44:35,081 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 423 flow [2024-10-13 16:44:35,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:35,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:35,082 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:44:35,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 16:44:35,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:35,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:35,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1091124374, now seen corresponding path program 2 times [2024-10-13 16:44:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:35,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909878493] [2024-10-13 16:44:35,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:35,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-13 16:44:35,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:35,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909878493] [2024-10-13 16:44:35,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909878493] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:35,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:44:35,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:44:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625698461] [2024-10-13 16:44:35,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:35,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:44:35,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:44:35,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:44:35,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-10-13 16:44:35,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:35,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:35,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-10-13 16:44:35,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:37,030 INFO L124 PetriNetUnfolderBase]: 8329/17769 cut-off events. [2024-10-13 16:44:37,030 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-10-13 16:44:37,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30485 conditions, 17769 events. 8329/17769 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 160518 event pairs, 3381 based on Foata normal form. 22/14505 useless extension candidates. Maximal degree in co-relation 30400. Up to 12412 conditions per place. [2024-10-13 16:44:37,129 INFO L140 encePairwiseOnDemand]: 161/167 looper letters, 122 selfloop transitions, 3 changer transitions 0/198 dead transitions. [2024-10-13 16:44:37,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 198 transitions, 763 flow [2024-10-13 16:44:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:44:37,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:44:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2024-10-13 16:44:37,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6197604790419161 [2024-10-13 16:44:37,132 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 423 flow. Second operand 4 states and 414 transitions. [2024-10-13 16:44:37,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 198 transitions, 763 flow [2024-10-13 16:44:37,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 198 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:44:37,136 INFO L231 Difference]: Finished difference. Result has 159 places, 151 transitions, 425 flow [2024-10-13 16:44:37,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=159, PETRI_TRANSITIONS=151} [2024-10-13 16:44:37,137 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-10-13 16:44:37,137 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 151 transitions, 425 flow [2024-10-13 16:44:37,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:37,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:37,138 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2024-10-13 16:44:37,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 16:44:37,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:37,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:37,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1974433584, now seen corresponding path program 1 times [2024-10-13 16:44:37,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:37,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344672318] [2024-10-13 16:44:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:37,522 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344672318] [2024-10-13 16:44:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344672318] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:44:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806800705] [2024-10-13 16:44:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:37,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:44:37,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 16:44:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:37,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 16:44:37,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:37,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:44:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:37,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806800705] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:44:37,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:44:37,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 16:44:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189333211] [2024-10-13 16:44:37,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:44:37,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 16:44:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 16:44:37,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 16:44:38,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-13 16:44:38,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 151 transitions, 425 flow. Second operand has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:38,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:38,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-13 16:44:38,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:40,415 INFO L124 PetriNetUnfolderBase]: 8493/18551 cut-off events. [2024-10-13 16:44:40,416 INFO L125 PetriNetUnfolderBase]: For 514/514 co-relation queries the response was YES. [2024-10-13 16:44:40,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31553 conditions, 18551 events. 8493/18551 cut-off events. For 514/514 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170321 event pairs, 7308 based on Foata normal form. 8/15219 useless extension candidates. Maximal degree in co-relation 31396. Up to 12580 conditions per place. [2024-10-13 16:44:40,662 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 90 selfloop transitions, 15 changer transitions 0/174 dead transitions. [2024-10-13 16:44:40,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 174 transitions, 797 flow [2024-10-13 16:44:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 16:44:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 16:44:40,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1172 transitions. [2024-10-13 16:44:40,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4678642714570858 [2024-10-13 16:44:40,665 INFO L175 Difference]: Start difference. First operand has 159 places, 151 transitions, 425 flow. Second operand 15 states and 1172 transitions. [2024-10-13 16:44:40,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 174 transitions, 797 flow [2024-10-13 16:44:40,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 174 transitions, 791 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:44:40,668 INFO L231 Difference]: Finished difference. Result has 175 places, 160 transitions, 553 flow [2024-10-13 16:44:40,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=553, PETRI_PLACES=175, PETRI_TRANSITIONS=160} [2024-10-13 16:44:40,669 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 35 predicate places. [2024-10-13 16:44:40,671 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 160 transitions, 553 flow [2024-10-13 16:44:40,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:40,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:40,672 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-10-13 16:44:40,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 16:44:40,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:40,873 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:40,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash -944200848, now seen corresponding path program 2 times [2024-10-13 16:44:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:40,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249468017] [2024-10-13 16:44:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:41,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:41,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249468017] [2024-10-13 16:44:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249468017] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:44:41,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184945054] [2024-10-13 16:44:41,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:44:41,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:41,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:41,786 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:44:41,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 16:44:42,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 16:44:42,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:44:42,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 16:44:42,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:42,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:44:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:42,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184945054] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:44:42,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:44:42,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-13 16:44:42,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316717121] [2024-10-13 16:44:42,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:44:42,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 16:44:42,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:42,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 16:44:42,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 16:44:42,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-13 16:44:42,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 160 transitions, 553 flow. Second operand has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:42,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:42,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-13 16:44:42,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:46,426 INFO L124 PetriNetUnfolderBase]: 8493/18647 cut-off events. [2024-10-13 16:44:46,427 INFO L125 PetriNetUnfolderBase]: For 1408/1408 co-relation queries the response was YES. [2024-10-13 16:44:46,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32009 conditions, 18647 events. 8493/18647 cut-off events. For 1408/1408 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170731 event pairs, 7308 based on Foata normal form. 16/15323 useless extension candidates. Maximal degree in co-relation 31642. Up to 12580 conditions per place. [2024-10-13 16:44:46,515 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 114 selfloop transitions, 31 changer transitions 0/214 dead transitions. [2024-10-13 16:44:46,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 214 transitions, 1307 flow [2024-10-13 16:44:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-13 16:44:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-13 16:44:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2352 transitions. [2024-10-13 16:44:46,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4543171721073981 [2024-10-13 16:44:46,522 INFO L175 Difference]: Start difference. First operand has 175 places, 160 transitions, 553 flow. Second operand 31 states and 2352 transitions. [2024-10-13 16:44:46,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 214 transitions, 1307 flow [2024-10-13 16:44:46,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 214 transitions, 1273 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-10-13 16:44:46,534 INFO L231 Difference]: Finished difference. Result has 210 places, 177 transitions, 825 flow [2024-10-13 16:44:46,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=825, PETRI_PLACES=210, PETRI_TRANSITIONS=177} [2024-10-13 16:44:46,535 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 70 predicate places. [2024-10-13 16:44:46,536 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 177 transitions, 825 flow [2024-10-13 16:44:46,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:46,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:46,537 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-10-13 16:44:46,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 16:44:46,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 16:44:46,742 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:46,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1339483152, now seen corresponding path program 3 times [2024-10-13 16:44:46,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:46,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839723739] [2024-10-13 16:44:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:49,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:49,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839723739] [2024-10-13 16:44:49,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839723739] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:44:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213466295] [2024-10-13 16:44:49,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 16:44:49,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:49,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:49,041 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) [2024-10-13 16:44:49,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 16:44:49,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 16:44:49,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:44:49,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 16:44:49,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-13 16:44:49,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:44:49,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213466295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:44:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:44:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 40 [2024-10-13 16:44:49,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869489045] [2024-10-13 16:44:49,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:44:49,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:44:49,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:49,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:44:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1246, Unknown=0, NotChecked=0, Total=1560 [2024-10-13 16:44:49,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-10-13 16:44:49,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 177 transitions, 825 flow. Second operand has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:49,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:49,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-10-13 16:44:49,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:44:52,544 INFO L124 PetriNetUnfolderBase]: 8493/18632 cut-off events. [2024-10-13 16:44:52,544 INFO L125 PetriNetUnfolderBase]: For 1588/1588 co-relation queries the response was YES. [2024-10-13 16:44:52,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32043 conditions, 18632 events. 8493/18632 cut-off events. For 1588/1588 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170492 event pairs, 7308 based on Foata normal form. 15/15307 useless extension candidates. Maximal degree in co-relation 31627. Up to 12573 conditions per place. [2024-10-13 16:44:52,685 INFO L140 encePairwiseOnDemand]: 157/167 looper letters, 103 selfloop transitions, 41 changer transitions 0/211 dead transitions. [2024-10-13 16:44:52,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 211 transitions, 1532 flow [2024-10-13 16:44:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 16:44:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 16:44:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2024-10-13 16:44:52,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45944474686989656 [2024-10-13 16:44:52,687 INFO L175 Difference]: Start difference. First operand has 210 places, 177 transitions, 825 flow. Second operand 11 states and 844 transitions. [2024-10-13 16:44:52,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 211 transitions, 1532 flow [2024-10-13 16:44:52,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 211 transitions, 1480 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-10-13 16:44:52,699 INFO L231 Difference]: Finished difference. Result has 212 places, 210 transitions, 1414 flow [2024-10-13 16:44:52,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1414, PETRI_PLACES=212, PETRI_TRANSITIONS=210} [2024-10-13 16:44:52,700 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 72 predicate places. [2024-10-13 16:44:52,700 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 210 transitions, 1414 flow [2024-10-13 16:44:52,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:52,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:44:52,700 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:44:52,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 16:44:52,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:52,901 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:44:52,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:44:52,902 INFO L85 PathProgramCache]: Analyzing trace with hash -391630626, now seen corresponding path program 1 times [2024-10-13 16:44:52,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:44:52,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768587906] [2024-10-13 16:44:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:52,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:44:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2024-10-13 16:44:53,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:44:53,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768587906] [2024-10-13 16:44:53,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768587906] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:44:53,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044982780] [2024-10-13 16:44:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:44:53,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:44:53,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:44:53,463 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) [2024-10-13 16:44:53,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 16:44:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:44:54,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 16:44:54,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:44:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:54,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:44:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:44:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044982780] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:44:55,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:44:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2024-10-13 16:44:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692206076] [2024-10-13 16:44:55,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:44:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-10-13 16:44:55,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:44:55,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-10-13 16:44:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2024-10-13 16:44:55,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-10-13 16:44:55,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 210 transitions, 1414 flow. Second operand has 64 states, 64 states have (on average 70.640625) internal successors, (4521), 64 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:44:55,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:44:55,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-10-13 16:44:55,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:45:06,282 INFO L124 PetriNetUnfolderBase]: 8509/18982 cut-off events. [2024-10-13 16:45:06,282 INFO L125 PetriNetUnfolderBase]: For 10009/10009 co-relation queries the response was YES. [2024-10-13 16:45:06,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34207 conditions, 18982 events. 8509/18982 cut-off events. For 10009/10009 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 170630 event pairs, 7308 based on Foata normal form. 46/15688 useless extension candidates. Maximal degree in co-relation 33310. Up to 12578 conditions per place. [2024-10-13 16:45:06,371 INFO L140 encePairwiseOnDemand]: 158/167 looper letters, 192 selfloop transitions, 216 changer transitions 0/475 dead transitions. [2024-10-13 16:45:06,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 475 transitions, 6020 flow [2024-10-13 16:45:06,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-10-13 16:45:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2024-10-13 16:45:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 13012 transitions. [2024-10-13 16:45:06,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42811081134434426 [2024-10-13 16:45:06,390 INFO L175 Difference]: Start difference. First operand has 212 places, 210 transitions, 1414 flow. Second operand 182 states and 13012 transitions. [2024-10-13 16:45:06,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 475 transitions, 6020 flow [2024-10-13 16:45:06,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 475 transitions, 5998 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-13 16:45:06,421 INFO L231 Difference]: Finished difference. Result has 436 places, 364 transitions, 4282 flow [2024-10-13 16:45:06,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=182, PETRI_FLOW=4282, PETRI_PLACES=436, PETRI_TRANSITIONS=364} [2024-10-13 16:45:06,422 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 296 predicate places. [2024-10-13 16:45:06,422 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 364 transitions, 4282 flow [2024-10-13 16:45:06,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 70.640625) internal successors, (4521), 64 states have internal predecessors, (4521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:45:06,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:45:06,425 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-10-13 16:45:06,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 16:45:06,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:45:06,626 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-13 16:45:06,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:45:06,627 INFO L85 PathProgramCache]: Analyzing trace with hash 621218998, now seen corresponding path program 1 times [2024-10-13 16:45:06,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:45:06,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337239011] [2024-10-13 16:45:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:45:06,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms