./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 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/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-dev-4a390ef-m [2024-10-24 23:36:35,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:36:35,648 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:36:35,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:36:35,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:36:35,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:36:35,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:36:35,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:36:35,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:36:35,691 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:36:35,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:36:35,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:36:35,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:36:35,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:36:35,695 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:36:35,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:36:35,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:36:35,696 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:36:35,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:36:35,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:36:35,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:36:35,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:36:35,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:36:35,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:36:35,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:36:35,702 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:36:35,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:36:35,702 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:36:35,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:36:35,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:36:35,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:36:35,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:36:35,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:36:35,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:36:35,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:36:35,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:36:35,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:36:35,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:36:35,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:36:35,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:36:35,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:36:35,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:36:35,707 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:36:35,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:36:35,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-10-24 23:36:35,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:36:36,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:36:36,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:36:36,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:36:36,008 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:36:36,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-24 23:36:37,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:36:37,708 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:36:37,710 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-24 23:36:37,733 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f0a9f76/ff0fff91c9384d8ebfc7b49d2787edcd/FLAGbf22538db [2024-10-24 23:36:37,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f0a9f76/ff0fff91c9384d8ebfc7b49d2787edcd [2024-10-24 23:36:37,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:36:37,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:36:37,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:36:37,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:36:38,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:36:38,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:37" (1/1) ... [2024-10-24 23:36:38,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cda347c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38, skipping insertion in model container [2024-10-24 23:36:38,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:37" (1/1) ... [2024-10-24 23:36:38,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:36:38,523 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,524 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,524 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,525 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:36:38,587 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:36:38,646 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,646 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,646 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,647 WARN L1660 CHandler]: Possible shadowing of function new [2024-10-24 23:36:38,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:36:38,727 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:36:38,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38 WrapperNode [2024-10-24 23:36:38,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:36:38,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:36:38,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:36:38,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:36:38,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,794 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 360 [2024-10-24 23:36:38,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:36:38,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:36:38,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:36:38,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:36:38,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,812 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,842 INFO L175 MemorySlicer]: Split 37 memory accesses to 5 slices as follows [2, 2, 5, 26, 2]. 70 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0, 0]. The 17 writes are split as follows [0, 1, 0, 15, 1]. [2024-10-24 23:36:38,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:36:38,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:36:38,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:36:38,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:36:38,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (1/1) ... [2024-10-24 23:36:38,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:36:38,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:38,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 23:36:38,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 23:36:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:36:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 23:36:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 23:36:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 23:36:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 23:36:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 23:36:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-24 23:36:38,973 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-24 23:36:38,973 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-24 23:36:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 23:36:38,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 23:36:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:36:38,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:36:38,979 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:36:39,224 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:36:39,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:36:39,789 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:36:39,789 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:36:40,101 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:36:40,102 INFO L314 CfgBuilder]: Removed 30 assume(true) statements. [2024-10-24 23:36:40,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:40 BoogieIcfgContainer [2024-10-24 23:36:40,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:36:40,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:36:40,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:36:40,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:36:40,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:36:37" (1/3) ... [2024-10-24 23:36:40,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798232e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:40, skipping insertion in model container [2024-10-24 23:36:40,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:38" (2/3) ... [2024-10-24 23:36:40,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798232e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:40, skipping insertion in model container [2024-10-24 23:36:40,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:40" (3/3) ... [2024-10-24 23:36:40,111 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-10-24 23:36:40,147 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:36:40,147 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-24 23:36:40,147 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:36:40,212 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 23:36:40,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2024-10-24 23:36:40,334 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2024-10-24 23:36:40,334 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 23:36:40,341 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. [2024-10-24 23:36:40,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2024-10-24 23:36:40,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2024-10-24 23:36:40,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:36:40,368 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;@a8d8cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:36:40,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-10-24 23:36:40,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:36:40,372 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-10-24 23:36:40,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:36:40,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:40,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 23:36:40,374 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)] === [2024-10-24 23:36:40,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash 28723099, now seen corresponding path program 1 times [2024-10-24 23:36:40,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349974687] [2024-10-24 23:36:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 23:36:40,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438521133] [2024-10-24 23:36:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:40,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:40,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:40,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:40,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 23:36:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:40,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 23:36:40,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:40,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:36:40,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:40,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349974687] [2024-10-24 23:36:40,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 23:36:40,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438521133] [2024-10-24 23:36:40,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438521133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:40,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:40,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 23:36:40,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673458515] [2024-10-24 23:36:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:40,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:36:40,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:36:40,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:36:40,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-10-24 23:36:40,776 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) [2024-10-24 23:36:40,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:40,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-10-24 23:36:40,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:42,963 INFO L124 PetriNetUnfolderBase]: 8567/18653 cut-off events. [2024-10-24 23:36:42,964 INFO L125 PetriNetUnfolderBase]: For 265/265 co-relation queries the response was YES. [2024-10-24 23:36:43,007 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. [2024-10-24 23:36:43,112 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 76 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2024-10-24 23:36:43,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 480 flow [2024-10-24 23:36:43,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:36:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:36:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-10-24 23:36:43,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447105788423154 [2024-10-24 23:36:43,126 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 323 transitions. [2024-10-24 23:36:43,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 480 flow [2024-10-24 23:36:43,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:36:43,136 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2024-10-24 23:36:43,138 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} [2024-10-24 23:36:43,141 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2024-10-24 23:36:43,141 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2024-10-24 23:36:43,142 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) [2024-10-24 23:36:43,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:43,142 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 23:36:43,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 23:36:43,346 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 [2024-10-24 23:36:43,348 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)] === [2024-10-24 23:36:43,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:43,348 INFO L85 PathProgramCache]: Analyzing trace with hash 28723147, now seen corresponding path program 1 times [2024-10-24 23:36:43,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:43,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137148751] [2024-10-24 23:36:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:43,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:43,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:43,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137148751] [2024-10-24 23:36:43,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137148751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:43,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:43,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:43,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661163944] [2024-10-24 23:36:43,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:43,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:36:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:36:43,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:36:43,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-10-24 23:36:43,529 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) [2024-10-24 23:36:43,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:43,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-10-24 23:36:43,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:45,443 INFO L124 PetriNetUnfolderBase]: 8567/18667 cut-off events. [2024-10-24 23:36:45,444 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-10-24 23:36:45,501 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. [2024-10-24 23:36:45,576 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-10-24 23:36:45,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 486 flow [2024-10-24 23:36:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:36:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:36:45,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-10-24 23:36:45,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988023952095808 [2024-10-24 23:36:45,582 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 300 transitions. [2024-10-24 23:36:45,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 486 flow [2024-10-24 23:36:45,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:36:45,589 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2024-10-24 23:36:45,590 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} [2024-10-24 23:36:45,591 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-10-24 23:36:45,591 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2024-10-24 23:36:45,592 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) [2024-10-24 23:36:45,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:45,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 23:36:45,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:36:45,592 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)] === [2024-10-24 23:36:45,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1833125160, now seen corresponding path program 1 times [2024-10-24 23:36:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:45,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35378069] [2024-10-24 23:36:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:45,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:45,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35378069] [2024-10-24 23:36:45,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35378069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:45,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:45,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:45,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694860719] [2024-10-24 23:36:45,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:45,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:45,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:45,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:45,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:45,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-24 23:36:45,860 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) [2024-10-24 23:36:45,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:45,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-24 23:36:45,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:47,881 INFO L124 PetriNetUnfolderBase]: 8567/18663 cut-off events. [2024-10-24 23:36:47,881 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-24 23:36:47,909 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. [2024-10-24 23:36:47,978 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 75 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2024-10-24 23:36:47,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 502 flow [2024-10-24 23:36:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-10-24 23:36:47,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5494011976047904 [2024-10-24 23:36:47,980 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 367 transitions. [2024-10-24 23:36:47,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 502 flow [2024-10-24 23:36:47,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:36:47,985 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2024-10-24 23:36:47,985 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} [2024-10-24 23:36:47,986 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2024-10-24 23:36:47,986 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2024-10-24 23:36:47,986 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) [2024-10-24 23:36:47,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:47,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:47,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:36:47,987 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)] === [2024-10-24 23:36:47,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash 123524072, now seen corresponding path program 1 times [2024-10-24 23:36:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:47,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927089899] [2024-10-24 23:36:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:48,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:36:48,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:48,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927089899] [2024-10-24 23:36:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927089899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:48,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:36:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797386068] [2024-10-24 23:36:48,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:48,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:48,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:48,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:48,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-24 23:36:48,234 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) [2024-10-24 23:36:48,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:48,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-24 23:36:48,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:49,735 INFO L124 PetriNetUnfolderBase]: 8567/18661 cut-off events. [2024-10-24 23:36:49,735 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-10-24 23:36:49,762 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. [2024-10-24 23:36:49,818 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 81 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-10-24 23:36:49,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 560 flow [2024-10-24 23:36:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-10-24 23:36:49,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5538922155688623 [2024-10-24 23:36:49,823 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 4 states and 370 transitions. [2024-10-24 23:36:49,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 560 flow [2024-10-24 23:36:49,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:36:49,831 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 376 flow [2024-10-24 23:36:49,832 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} [2024-10-24 23:36:49,833 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-10-24 23:36:49,834 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 376 flow [2024-10-24 23:36:49,834 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) [2024-10-24 23:36:49,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:49,835 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 23:36:49,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:36:49,835 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)] === [2024-10-24 23:36:49,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:49,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1552466427, now seen corresponding path program 1 times [2024-10-24 23:36:49,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:49,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473063576] [2024-10-24 23:36:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:49,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:50,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:50,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473063576] [2024-10-24 23:36:50,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473063576] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:50,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118870542] [2024-10-24 23:36:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:50,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:50,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:50,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:50,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 23:36:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:50,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:36:50,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:50,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:36:50,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118870542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:50,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:36:50,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-24 23:36:50,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152068825] [2024-10-24 23:36:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:50,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:36:50,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:36:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:36:50,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-10-24 23:36:50,297 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) [2024-10-24 23:36:50,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:50,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-10-24 23:36:50,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:52,063 INFO L124 PetriNetUnfolderBase]: 8567/18659 cut-off events. [2024-10-24 23:36:52,063 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2024-10-24 23:36:52,091 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. [2024-10-24 23:36:52,143 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-10-24 23:36:52,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 528 flow [2024-10-24 23:36:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:36:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:36:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-10-24 23:36:52,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5079840319361277 [2024-10-24 23:36:52,145 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 376 flow. Second operand 6 states and 509 transitions. [2024-10-24 23:36:52,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 528 flow [2024-10-24 23:36:52,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 150 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:36:52,150 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 382 flow [2024-10-24 23:36:52,150 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} [2024-10-24 23:36:52,151 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2024-10-24 23:36:52,151 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 382 flow [2024-10-24 23:36:52,151 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) [2024-10-24 23:36:52,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:52,152 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-10-24 23:36:52,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 23:36:52,355 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 [2024-10-24 23:36:52,356 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)] === [2024-10-24 23:36:52,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:52,357 INFO L85 PathProgramCache]: Analyzing trace with hash -881817919, now seen corresponding path program 1 times [2024-10-24 23:36:52,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:52,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056386505] [2024-10-24 23:36:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:52,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:36:52,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:52,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056386505] [2024-10-24 23:36:52,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056386505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:52,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:52,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:52,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938314158] [2024-10-24 23:36:52,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:52,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:52,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:52,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:52,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:52,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-10-24 23:36:52,469 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) [2024-10-24 23:36:52,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:52,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-10-24 23:36:52,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:54,014 INFO L124 PetriNetUnfolderBase]: 8567/18657 cut-off events. [2024-10-24 23:36:54,015 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-10-24 23:36:54,048 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. [2024-10-24 23:36:54,117 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-10-24 23:36:54,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 534 flow [2024-10-24 23:36:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:54,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-10-24 23:36:54,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-10-24 23:36:54,120 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 382 flow. Second operand 4 states and 366 transitions. [2024-10-24 23:36:54,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 534 flow [2024-10-24 23:36:54,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 519 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-24 23:36:54,125 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 383 flow [2024-10-24 23:36:54,125 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} [2024-10-24 23:36:54,126 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-10-24 23:36:54,126 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 383 flow [2024-10-24 23:36:54,127 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) [2024-10-24 23:36:54,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:54,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:54,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:36:54,127 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)] === [2024-10-24 23:36:54,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1602199158, now seen corresponding path program 1 times [2024-10-24 23:36:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:54,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279972477] [2024-10-24 23:36:54,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:54,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:54,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279972477] [2024-10-24 23:36:54,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279972477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:54,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061428678] [2024-10-24 23:36:54,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:54,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:54,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:54,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:54,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 23:36:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:54,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:36:54,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:54,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:54,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061428678] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:54,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:54,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 23:36:54,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012394837] [2024-10-24 23:36:54,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:54,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 23:36:54,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 23:36:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:36:54,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-24 23:36:54,502 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) [2024-10-24 23:36:54,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:54,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-24 23:36:54,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:56,159 INFO L124 PetriNetUnfolderBase]: 8567/18671 cut-off events. [2024-10-24 23:36:56,159 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2024-10-24 23:36:56,184 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. [2024-10-24 23:36:56,222 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 78 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-10-24 23:36:56,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 156 transitions, 588 flow [2024-10-24 23:36:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 23:36:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 23:36:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2024-10-24 23:36:56,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49786142001710865 [2024-10-24 23:36:56,225 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 383 flow. Second operand 7 states and 582 transitions. [2024-10-24 23:36:56,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 156 transitions, 588 flow [2024-10-24 23:36:56,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:36:56,229 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 423 flow [2024-10-24 23:36:56,230 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} [2024-10-24 23:36:56,230 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-10-24 23:36:56,230 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 423 flow [2024-10-24 23:36:56,231 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) [2024-10-24 23:36:56,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:56,231 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:56,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 23:36:56,432 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 [2024-10-24 23:36:56,432 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)] === [2024-10-24 23:36:56,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:56,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1091124374, now seen corresponding path program 2 times [2024-10-24 23:36:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378316211] [2024-10-24 23:36:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:56,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:56,612 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 23:36:56,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:56,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378316211] [2024-10-24 23:36:56,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378316211] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:56,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032090635] [2024-10-24 23:36:56,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:36:56,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:56,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:56,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:56,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 23:36:56,793 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 23:36:56,793 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:36:56,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 23:36:56,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-24 23:36:56,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:36:56,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032090635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:56,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:36:56,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2024-10-24 23:36:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489086650] [2024-10-24 23:36:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:56,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:56,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 23:36:56,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-10-24 23:36:56,837 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) [2024-10-24 23:36:56,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:56,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-10-24 23:36:56,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:58,496 INFO L124 PetriNetUnfolderBase]: 8430/18117 cut-off events. [2024-10-24 23:36:58,496 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-10-24 23:36:58,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31019 conditions, 18117 events. 8430/18117 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 164724 event pairs, 3464 based on Foata normal form. 22/14742 useless extension candidates. Maximal degree in co-relation 30934. Up to 12461 conditions per place. [2024-10-24 23:36:58,564 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 121 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2024-10-24 23:36:58,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 198 transitions, 763 flow [2024-10-24 23:36:58,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2024-10-24 23:36:58,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6167664670658682 [2024-10-24 23:36:58,566 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 423 flow. Second operand 4 states and 412 transitions. [2024-10-24 23:36:58,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 198 transitions, 763 flow [2024-10-24 23:36:58,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 198 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:36:58,571 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 425 flow [2024-10-24 23:36:58,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2024-10-24 23:36:58,572 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-10-24 23:36:58,572 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 425 flow [2024-10-24 23:36:58,572 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) [2024-10-24 23:36:58,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:58,572 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:58,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 23:36:58,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:58,773 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-24 23:36:58,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:58,773 INFO L85 PathProgramCache]: Analyzing trace with hash 534883831, now seen corresponding path program 1 times [2024-10-24 23:36:58,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:58,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118960217] [2024-10-24 23:36:58,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:58,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 23:36:58,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:58,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118960217] [2024-10-24 23:36:58,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118960217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:58,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151404035] [2024-10-24 23:36:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:58,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:58,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:58,954 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:58,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 23:36:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:59,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:36:59,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:59,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:59,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151404035] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:59,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:59,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-10-24 23:36:59,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224997429] [2024-10-24 23:36:59,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:59,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 23:36:59,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:59,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 23:36:59,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-24 23:36:59,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-10-24 23:36:59,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 425 flow. Second operand has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:59,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:59,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-10-24 23:36:59,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:37:02,718 INFO L124 PetriNetUnfolderBase]: 8572/18824 cut-off events. [2024-10-24 23:37:02,718 INFO L125 PetriNetUnfolderBase]: For 681/681 co-relation queries the response was YES. [2024-10-24 23:37:02,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32076 conditions, 18824 events. 8572/18824 cut-off events. For 681/681 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 171586 event pairs, 7350 based on Foata normal form. 13/15541 useless extension candidates. Maximal degree in co-relation 31912. Up to 12692 conditions per place. [2024-10-24 23:37:02,796 INFO L140 encePairwiseOnDemand]: 158/167 looper letters, 114 selfloop transitions, 55 changer transitions 0/237 dead transitions. [2024-10-24 23:37:02,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 237 transitions, 1366 flow [2024-10-24 23:37:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-24 23:37:02,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-10-24 23:37:02,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3218 transitions. [2024-10-24 23:37:02,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43794229722373434 [2024-10-24 23:37:02,807 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 425 flow. Second operand 44 states and 3218 transitions. [2024-10-24 23:37:02,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 237 transitions, 1366 flow [2024-10-24 23:37:02,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 237 transitions, 1358 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:37:02,815 INFO L231 Difference]: Finished difference. Result has 212 places, 200 transitions, 976 flow [2024-10-24 23:37:02,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=976, PETRI_PLACES=212, PETRI_TRANSITIONS=200} [2024-10-24 23:37:02,816 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 72 predicate places. [2024-10-24 23:37:02,816 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 200 transitions, 976 flow [2024-10-24 23:37:02,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:37:02,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:37:02,818 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-10-24 23:37:02,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 23:37:03,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:37:03,023 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)] === [2024-10-24 23:37:03,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:37:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash -944200848, now seen corresponding path program 1 times [2024-10-24 23:37:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:37:03,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653053182] [2024-10-24 23:37:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:37:03,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:37:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:37:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:37:03,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:37:03,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653053182] [2024-10-24 23:37:03,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653053182] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:37:03,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800099992] [2024-10-24 23:37:03,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:37:03,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:37:03,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:37:03,897 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) [2024-10-24 23:37:03,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 23:37:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:37:04,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 23:37:04,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:37:04,424 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:37:04,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:37:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:37:04,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800099992] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:37:04,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:37:04,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-24 23:37:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154300837] [2024-10-24 23:37:04,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:37:04,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-24 23:37:04,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:37:04,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-24 23:37:04,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 23:37:04,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-24 23:37:04,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 200 transitions, 976 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) [2024-10-24 23:37:04,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:37:04,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-24 23:37:04,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:37:09,055 INFO L124 PetriNetUnfolderBase]: 8568/18976 cut-off events. [2024-10-24 23:37:09,055 INFO L125 PetriNetUnfolderBase]: For 2943/2943 co-relation queries the response was YES. [2024-10-24 23:37:09,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32922 conditions, 18976 events. 8568/18976 cut-off events. For 2943/2943 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 172202 event pairs, 7350 based on Foata normal form. 24/15680 useless extension candidates. Maximal degree in co-relation 32547. Up to 12696 conditions per place. [2024-10-24 23:37:09,151 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 147 selfloop transitions, 93 changer transitions 0/310 dead transitions. [2024-10-24 23:37:09,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 310 transitions, 2688 flow [2024-10-24 23:37:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 23:37:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-24 23:37:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2352 transitions. [2024-10-24 23:37:09,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4543171721073981 [2024-10-24 23:37:09,157 INFO L175 Difference]: Start difference. First operand has 212 places, 200 transitions, 976 flow. Second operand 31 states and 2352 transitions. [2024-10-24 23:37:09,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 310 transitions, 2688 flow [2024-10-24 23:37:09,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 310 transitions, 2580 flow, removed 43 selfloop flow, removed 5 redundant places. [2024-10-24 23:37:09,173 INFO L231 Difference]: Finished difference. Result has 246 places, 251 transitions, 1713 flow [2024-10-24 23:37:09,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1713, PETRI_PLACES=246, PETRI_TRANSITIONS=251} [2024-10-24 23:37:09,174 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 106 predicate places. [2024-10-24 23:37:09,175 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 251 transitions, 1713 flow [2024-10-24 23:37:09,176 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) [2024-10-24 23:37:09,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:37:09,177 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-10-24 23:37:09,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 23:37:09,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:37:09,378 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)] === [2024-10-24 23:37:09,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:37:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1339483152, now seen corresponding path program 2 times [2024-10-24 23:37:09,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:37:09,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265984410] [2024-10-24 23:37:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:37:09,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:37:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:37:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:37:11,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:37:11,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265984410] [2024-10-24 23:37:11,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265984410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:37:11,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345839511] [2024-10-24 23:37:11,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:37:11,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:37:11,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:37:11,861 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) [2024-10-24 23:37:11,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 23:37:12,420 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:37:12,420 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:37:12,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 23:37:12,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:37:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:37:12,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:37:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:37:13,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345839511] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:37:13,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:37:13,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-24 23:37:13,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175974726] [2024-10-24 23:37:13,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:37:13,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-24 23:37:13,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:37:13,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-24 23:37:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-24 23:37:13,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-10-24 23:37:13,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 251 transitions, 1713 flow. Second operand has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:37:13,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:37:13,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-10-24 23:37:13,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:37:20,758 INFO L124 PetriNetUnfolderBase]: 8568/19261 cut-off events. [2024-10-24 23:37:20,758 INFO L125 PetriNetUnfolderBase]: For 9926/9926 co-relation queries the response was YES. [2024-10-24 23:37:20,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34566 conditions, 19261 events. 8568/19261 cut-off events. For 9926/9926 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 172366 event pairs, 7350 based on Foata normal form. 45/15986 useless extension candidates. Maximal degree in co-relation 33770. Up to 12696 conditions per place. [2024-10-24 23:37:20,932 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 237 selfloop transitions, 183 changer transitions 0/490 dead transitions. [2024-10-24 23:37:20,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 490 transitions, 5627 flow [2024-10-24 23:37:20,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-10-24 23:37:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-10-24 23:37:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4564 transitions. [2024-10-24 23:37:20,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4480219888092667 [2024-10-24 23:37:20,943 INFO L175 Difference]: Start difference. First operand has 246 places, 251 transitions, 1713 flow. Second operand 61 states and 4564 transitions. [2024-10-24 23:37:20,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 490 transitions, 5627 flow [2024-10-24 23:37:20,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 490 transitions, 5555 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-24 23:37:20,985 INFO L231 Difference]: Finished difference. Result has 310 places, 344 transitions, 3383 flow [2024-10-24 23:37:20,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1641, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3383, PETRI_PLACES=310, PETRI_TRANSITIONS=344} [2024-10-24 23:37:20,988 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 170 predicate places. [2024-10-24 23:37:20,988 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 344 transitions, 3383 flow [2024-10-24 23:37:20,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:37:20,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:37:20,992 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-10-24 23:37:21,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 23:37:21,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:37:21,193 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-10-24 23:37:21,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:37:21,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1682607277, now seen corresponding path program 3 times [2024-10-24 23:37:21,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:37:21,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177041892] [2024-10-24 23:37:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:37:21,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms