./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_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 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:23:34,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:23:34,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:23:34,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:23:34,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:23:34,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:23:34,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:23:34,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:23:34,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:23:34,530 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:23:34,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:23:34,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:23:34,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:23:34,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:23:34,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:23:34,533 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:23:34,533 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:34,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:23:34,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:23:34,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:23:34,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:23:34,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:23:34,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:23:34,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:23:34,535 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2025-03-04 15:23:34,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:23:34,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:23:34,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:23:34,746 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:23:34,746 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:23:34,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2025-03-04 15:23:35,878 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0b0091b/524e8bd46cd24cee81d6263e9414da42/FLAGdd4f21568 [2025-03-04 15:23:36,183 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:23:36,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2025-03-04 15:23:36,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0b0091b/524e8bd46cd24cee81d6263e9414da42/FLAGdd4f21568 [2025-03-04 15:23:36,445 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0b0091b/524e8bd46cd24cee81d6263e9414da42 [2025-03-04 15:23:36,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:23:36,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:23:36,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:36,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:23:36,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:23:36,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:36,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff8e034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36, skipping insertion in model container [2025-03-04 15:23:36,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:36,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:23:36,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,810 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:36,872 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:23:36,902 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,902 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,902 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,903 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:36,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:36,954 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:23:36,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36 WrapperNode [2025-03-04 15:23:36,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:36,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:36,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:23:36,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:23:36,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:36,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:36,993 INFO L138 Inliner]: procedures = 280, calls = 136, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 309 [2025-03-04 15:23:36,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:36,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:23:36,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:23:36,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:23:37,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,024 INFO L175 MemorySlicer]: Split 110 memory accesses to 4 slices as follows [2, 5, 101, 2]. 92 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 5, 80, 0]. The 13 writes are split as follows [0, 0, 12, 1]. [2025-03-04 15:23:37,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,034 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:23:37,040 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:23:37,040 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:23:37,040 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:23:37,041 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (1/1) ... [2025-03-04 15:23:37,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:37,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:37,070 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) [2025-03-04 15:23:37,077 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 [2025-03-04 15:23:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:23:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 15:23:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 15:23:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 15:23:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 15:23:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 15:23:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:23:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 15:23:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:23:37,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:23:37,096 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:23:37,227 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:23:37,229 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:23:37,556 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-04 15:23:37,556 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1072-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-04 15:23:37,647 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:23:37,648 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:23:38,134 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:23:38,134 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:23:38,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:38 BoogieIcfgContainer [2025-03-04 15:23:38,135 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:23:38,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:23:38,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:23:38,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:23:38,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:23:36" (1/3) ... [2025-03-04 15:23:38,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3a3977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:38, skipping insertion in model container [2025-03-04 15:23:38,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:36" (2/3) ... [2025-03-04 15:23:38,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3a3977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:38, skipping insertion in model container [2025-03-04 15:23:38,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:38" (3/3) ... [2025-03-04 15:23:38,144 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2025-03-04 15:23:38,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:23:38,158 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_92-evilcollapse_racing.i that has 2 procedures, 70 locations, 1 initial locations, 10 loop locations, and 16 error locations. [2025-03-04 15:23:38,158 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:23:38,212 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 15:23:38,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 86 transitions, 179 flow [2025-03-04 15:23:38,301 INFO L124 PetriNetUnfolderBase]: 16/90 cut-off events. [2025-03-04 15:23:38,303 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:23:38,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 16/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 283 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2025-03-04 15:23:38,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 86 transitions, 179 flow [2025-03-04 15:23:38,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 85 transitions, 177 flow [2025-03-04 15:23:38,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:23:38,321 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;@7d568d69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:23:38,321 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-03-04 15:23:38,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:23:38,330 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-03-04 15:23:38,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:23:38,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:38,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:38,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:38,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash 23650777, now seen corresponding path program 1 times [2025-03-04 15:23:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144588014] [2025-03-04 15:23:38,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:38,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:38,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:38,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:38,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:23:38,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688976276] [2025-03-04 15:23:38,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:38,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:38,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:38,443 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) [2025-03-04 15:23:38,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:23:38,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:38,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:38,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:38,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:38,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 15:23:38,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:38,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:38,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:38,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144588014] [2025-03-04 15:23:38,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:23:38,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688976276] [2025-03-04 15:23:38,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688976276] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:38,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:38,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:23:38,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122743761] [2025-03-04 15:23:38,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:38,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:38,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:38,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:38,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:38,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:23:38,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 85 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2025-03-04 15:23:38,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:38,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:23:38,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:38,793 INFO L124 PetriNetUnfolderBase]: 121/402 cut-off events. [2025-03-04 15:23:38,793 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:23:38,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 402 events. 121/402 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1882 event pairs, 100 based on Foata normal form. 31/350 useless extension candidates. Maximal degree in co-relation 598. Up to 253 conditions per place. [2025-03-04 15:23:38,798 INFO L140 encePairwiseOnDemand]: 71/86 looper letters, 41 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2025-03-04 15:23:38,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 253 flow [2025-03-04 15:23:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:38,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:38,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2025-03-04 15:23:38,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6472868217054264 [2025-03-04 15:23:38,810 INFO L175 Difference]: Start difference. First operand has 73 places, 85 transitions, 177 flow. Second operand 3 states and 167 transitions. [2025-03-04 15:23:38,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 253 flow [2025-03-04 15:23:38,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:23:38,819 INFO L231 Difference]: Finished difference. Result has 76 places, 76 transitions, 173 flow [2025-03-04 15:23:38,820 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=76, PETRI_TRANSITIONS=76} [2025-03-04 15:23:38,824 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 3 predicate places. [2025-03-04 15:23:38,824 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 76 transitions, 173 flow [2025-03-04 15:23:38,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2025-03-04 15:23:38,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:38,824 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:38,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 15:23:39,025 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 [2025-03-04 15:23:39,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:39,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:39,026 INFO L85 PathProgramCache]: Analyzing trace with hash 23650800, now seen corresponding path program 1 times [2025-03-04 15:23:39,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:39,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920639422] [2025-03-04 15:23:39,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:39,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:39,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:39,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:39,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:39,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:39,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:39,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920639422] [2025-03-04 15:23:39,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920639422] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:39,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:39,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:39,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170799621] [2025-03-04 15:23:39,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:39,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:39,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:39,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:39,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:39,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:23:39,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 76 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2025-03-04 15:23:39,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:39,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:23:39,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:39,380 INFO L124 PetriNetUnfolderBase]: 121/416 cut-off events. [2025-03-04 15:23:39,380 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-04 15:23:39,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 416 events. 121/416 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1949 event pairs, 100 based on Foata normal form. 4/337 useless extension candidates. Maximal degree in co-relation 655. Up to 258 conditions per place. [2025-03-04 15:23:39,386 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 39 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2025-03-04 15:23:39,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 259 flow [2025-03-04 15:23:39,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2025-03-04 15:23:39,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2025-03-04 15:23:39,387 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 173 flow. Second operand 3 states and 154 transitions. [2025-03-04 15:23:39,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 259 flow [2025-03-04 15:23:39,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:23:39,389 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 187 flow [2025-03-04 15:23:39,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=78, PETRI_TRANSITIONS=77} [2025-03-04 15:23:39,390 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2025-03-04 15:23:39,390 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 187 flow [2025-03-04 15:23:39,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2025-03-04 15:23:39,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:39,390 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:23:39,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:23:39,391 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:39,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1253581500, now seen corresponding path program 1 times [2025-03-04 15:23:39,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:39,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652463492] [2025-03-04 15:23:39,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:39,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:39,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:39,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:39,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:39,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:39,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:39,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652463492] [2025-03-04 15:23:39,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652463492] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:39,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:39,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:39,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329807668] [2025-03-04 15:23:39,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:39,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:39,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:39,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:39,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:39,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:39,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:39,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:39,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:39,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:39,788 INFO L124 PetriNetUnfolderBase]: 121/412 cut-off events. [2025-03-04 15:23:39,789 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-03-04 15:23:39,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 412 events. 121/412 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1941 event pairs, 100 based on Foata normal form. 4/337 useless extension candidates. Maximal degree in co-relation 642. Up to 262 conditions per place. [2025-03-04 15:23:39,791 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 40 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2025-03-04 15:23:39,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 78 transitions, 275 flow [2025-03-04 15:23:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:39,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2025-03-04 15:23:39,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2025-03-04 15:23:39,793 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 187 flow. Second operand 4 states and 184 transitions. [2025-03-04 15:23:39,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 78 transitions, 275 flow [2025-03-04 15:23:39,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:23:39,795 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 203 flow [2025-03-04 15:23:39,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2025-03-04 15:23:39,795 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 9 predicate places. [2025-03-04 15:23:39,795 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 203 flow [2025-03-04 15:23:39,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:39,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:39,796 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:39,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:23:39,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:39,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash 706547198, now seen corresponding path program 1 times [2025-03-04 15:23:39,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:39,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627230920] [2025-03-04 15:23:39,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:39,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:39,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:23:39,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:23:39,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:39,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:23:39,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:39,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627230920] [2025-03-04 15:23:39,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627230920] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:39,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:39,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:23:39,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166052116] [2025-03-04 15:23:39,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:39,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:39,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:39,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:39,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:39,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:39,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2025-03-04 15:23:39,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:39,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:39,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:40,129 INFO L124 PetriNetUnfolderBase]: 121/410 cut-off events. [2025-03-04 15:23:40,129 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-03-04 15:23:40,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 410 events. 121/410 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1927 event pairs, 100 based on Foata normal form. 2/335 useless extension candidates. Maximal degree in co-relation 643. Up to 257 conditions per place. [2025-03-04 15:23:40,133 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 46 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2025-03-04 15:23:40,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 84 transitions, 333 flow [2025-03-04 15:23:40,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:40,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-03-04 15:23:40,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5436046511627907 [2025-03-04 15:23:40,135 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 203 flow. Second operand 4 states and 187 transitions. [2025-03-04 15:23:40,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 84 transitions, 333 flow [2025-03-04 15:23:40,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 84 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:40,137 INFO L231 Difference]: Finished difference. Result has 85 places, 79 transitions, 219 flow [2025-03-04 15:23:40,137 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=85, PETRI_TRANSITIONS=79} [2025-03-04 15:23:40,140 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2025-03-04 15:23:40,140 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 79 transitions, 219 flow [2025-03-04 15:23:40,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2025-03-04 15:23:40,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:40,142 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:40,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:23:40,142 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:40,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash 387023690, now seen corresponding path program 1 times [2025-03-04 15:23:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:40,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713444610] [2025-03-04 15:23:40,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:40,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:40,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:40,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:40,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:40,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:40,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713444610] [2025-03-04 15:23:40,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713444610] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723416382] [2025-03-04 15:23:40,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:40,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:40,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:40,354 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) [2025-03-04 15:23:40,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:23:40,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:40,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:40,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:40,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:40,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:40,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:40,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:40,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723416382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:40,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:40,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-04 15:23:40,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602927240] [2025-03-04 15:23:40,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:40,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:23:40,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:40,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:23:40,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:23:40,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:40,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 79 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 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) [2025-03-04 15:23:40,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:40,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:40,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:40,918 INFO L124 PetriNetUnfolderBase]: 121/408 cut-off events. [2025-03-04 15:23:40,918 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-03-04 15:23:40,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 408 events. 121/408 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1909 event pairs, 100 based on Foata normal form. 2/333 useless extension candidates. Maximal degree in co-relation 667. Up to 250 conditions per place. [2025-03-04 15:23:40,920 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 36 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2025-03-04 15:23:40,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 78 transitions, 301 flow [2025-03-04 15:23:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:23:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:23:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 252 transitions. [2025-03-04 15:23:40,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2025-03-04 15:23:40,922 INFO L175 Difference]: Start difference. First operand has 85 places, 79 transitions, 219 flow. Second operand 6 states and 252 transitions. [2025-03-04 15:23:40,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 78 transitions, 301 flow [2025-03-04 15:23:40,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 78 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:40,924 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 225 flow [2025-03-04 15:23:40,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2025-03-04 15:23:40,924 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 14 predicate places. [2025-03-04 15:23:40,924 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 225 flow [2025-03-04 15:23:40,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 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) [2025-03-04 15:23:40,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:40,925 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 15:23:40,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 15:23:41,125 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 [2025-03-04 15:23:41,126 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:41,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:41,129 INFO L85 PathProgramCache]: Analyzing trace with hash -887166775, now seen corresponding path program 1 times [2025-03-04 15:23:41,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:41,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728900238] [2025-03-04 15:23:41,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:41,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:41,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:23:41,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:23:41,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:41,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:23:41,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:41,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728900238] [2025-03-04 15:23:41,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728900238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:41,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:41,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:41,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308341089] [2025-03-04 15:23:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:41,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:41,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:41,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:41,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2025-03-04 15:23:41,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2025-03-04 15:23:41,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:41,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2025-03-04 15:23:41,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:41,375 INFO L124 PetriNetUnfolderBase]: 121/406 cut-off events. [2025-03-04 15:23:41,375 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-03-04 15:23:41,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 406 events. 121/406 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1890 event pairs, 100 based on Foata normal form. 2/331 useless extension candidates. Maximal degree in co-relation 666. Up to 254 conditions per place. [2025-03-04 15:23:41,377 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 36 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2025-03-04 15:23:41,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 78 transitions, 307 flow [2025-03-04 15:23:41,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:41,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:41,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2025-03-04 15:23:41,378 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5319767441860465 [2025-03-04 15:23:41,378 INFO L175 Difference]: Start difference. First operand has 87 places, 78 transitions, 225 flow. Second operand 4 states and 183 transitions. [2025-03-04 15:23:41,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 78 transitions, 307 flow [2025-03-04 15:23:41,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 78 transitions, 292 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:41,380 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 226 flow [2025-03-04 15:23:41,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2025-03-04 15:23:41,381 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2025-03-04 15:23:41,381 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 226 flow [2025-03-04 15:23:41,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2025-03-04 15:23:41,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:41,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:41,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:23:41,381 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1285086959, now seen corresponding path program 1 times [2025-03-04 15:23:41,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:41,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071682672] [2025-03-04 15:23:41,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:41,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:41,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:23:41,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:23:41,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:41,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:41,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:41,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071682672] [2025-03-04 15:23:41,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071682672] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:41,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095993776] [2025-03-04 15:23:41,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:41,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:41,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:41,497 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) [2025-03-04 15:23:41,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 15:23:41,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:23:41,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:23:41,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:41,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:41,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:23:41,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:41,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:41,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095993776] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:41,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:41,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 15:23:41,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337922281] [2025-03-04 15:23:41,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:41,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:23:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:41,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:23:41,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:23:41,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:41,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 226 flow. Second operand has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 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) [2025-03-04 15:23:41,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:41,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:41,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:42,075 INFO L124 PetriNetUnfolderBase]: 121/420 cut-off events. [2025-03-04 15:23:42,076 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2025-03-04 15:23:42,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 420 events. 121/420 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1967 event pairs, 100 based on Foata normal form. 4/347 useless extension candidates. Maximal degree in co-relation 696. Up to 252 conditions per place. [2025-03-04 15:23:42,077 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 43 selfloop transitions, 7 changer transitions 0/84 dead transitions. [2025-03-04 15:23:42,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 84 transitions, 361 flow [2025-03-04 15:23:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 15:23:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 15:23:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 288 transitions. [2025-03-04 15:23:42,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47840531561461797 [2025-03-04 15:23:42,078 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 226 flow. Second operand 7 states and 288 transitions. [2025-03-04 15:23:42,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 84 transitions, 361 flow [2025-03-04 15:23:42,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 84 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:42,080 INFO L231 Difference]: Finished difference. Result has 92 places, 81 transitions, 266 flow [2025-03-04 15:23:42,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=266, PETRI_PLACES=92, PETRI_TRANSITIONS=81} [2025-03-04 15:23:42,081 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2025-03-04 15:23:42,081 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 81 transitions, 266 flow [2025-03-04 15:23:42,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.9) internal successors, (359), 10 states have internal predecessors, (359), 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) [2025-03-04 15:23:42,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:42,081 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:42,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 15:23:42,281 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 [2025-03-04 15:23:42,282 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:42,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1001295407, now seen corresponding path program 2 times [2025-03-04 15:23:42,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:42,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233987139] [2025-03-04 15:23:42,283 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:42,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:42,318 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-03-04 15:23:42,322 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 25 statements. [2025-03-04 15:23:42,322 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:23:42,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-04 15:23:42,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:42,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233987139] [2025-03-04 15:23:42,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233987139] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:42,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:42,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101744197] [2025-03-04 15:23:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:42,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:42,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:42,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:42,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2025-03-04 15:23:42,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 81 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2025-03-04 15:23:42,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:42,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2025-03-04 15:23:42,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:42,597 INFO L124 PetriNetUnfolderBase]: 144/435 cut-off events. [2025-03-04 15:23:42,597 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-03-04 15:23:42,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 435 events. 144/435 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2013 event pairs, 16 based on Foata normal form. 21/391 useless extension candidates. Maximal degree in co-relation 757. Up to 241 conditions per place. [2025-03-04 15:23:42,599 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 85 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2025-03-04 15:23:42,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 124 transitions, 528 flow [2025-03-04 15:23:42,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:42,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:42,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 229 transitions. [2025-03-04 15:23:42,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6656976744186046 [2025-03-04 15:23:42,600 INFO L175 Difference]: Start difference. First operand has 92 places, 81 transitions, 266 flow. Second operand 4 states and 229 transitions. [2025-03-04 15:23:42,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 124 transitions, 528 flow [2025-03-04 15:23:42,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 124 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:42,603 INFO L231 Difference]: Finished difference. Result has 92 places, 79 transitions, 268 flow [2025-03-04 15:23:42,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=92, PETRI_TRANSITIONS=79} [2025-03-04 15:23:42,604 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2025-03-04 15:23:42,604 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 79 transitions, 268 flow [2025-03-04 15:23:42,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2025-03-04 15:23:42,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:42,604 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:42,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:23:42,604 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:42,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:42,605 INFO L85 PathProgramCache]: Analyzing trace with hash 986077207, now seen corresponding path program 1 times [2025-03-04 15:23:42,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:42,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086204465] [2025-03-04 15:23:42,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:42,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:42,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 15:23:42,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 15:23:42,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:42,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086204465] [2025-03-04 15:23:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086204465] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330965818] [2025-03-04 15:23:42,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:42,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:42,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:42,882 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) [2025-03-04 15:23:42,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 15:23:43,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 15:23:43,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 15:23:43,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:43,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:43,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:23:43,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:43,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:43,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330965818] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:43,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:43,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-04 15:23:43,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832961627] [2025-03-04 15:23:43,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:43,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 15:23:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:43,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 15:23:43,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 15:23:43,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:43,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 268 flow. Second operand has 18 states, 18 states have (on average 35.833333333333336) internal successors, (645), 18 states have internal predecessors, (645), 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) [2025-03-04 15:23:43,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:43,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:43,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:43,860 INFO L124 PetriNetUnfolderBase]: 121/456 cut-off events. [2025-03-04 15:23:43,860 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2025-03-04 15:23:43,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 456 events. 121/456 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2037 event pairs, 100 based on Foata normal form. 8/409 useless extension candidates. Maximal degree in co-relation 833. Up to 249 conditions per place. [2025-03-04 15:23:43,862 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 55 selfloop transitions, 15 changer transitions 0/102 dead transitions. [2025-03-04 15:23:43,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 570 flow [2025-03-04 15:23:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 15:23:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 15:23:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 582 transitions. [2025-03-04 15:23:43,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4511627906976744 [2025-03-04 15:23:43,865 INFO L175 Difference]: Start difference. First operand has 92 places, 79 transitions, 268 flow. Second operand 15 states and 582 transitions. [2025-03-04 15:23:43,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 570 flow [2025-03-04 15:23:43,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 564 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:23:43,868 INFO L231 Difference]: Finished difference. Result has 108 places, 88 transitions, 396 flow [2025-03-04 15:23:43,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=396, PETRI_PLACES=108, PETRI_TRANSITIONS=88} [2025-03-04 15:23:43,870 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 35 predicate places. [2025-03-04 15:23:43,870 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 88 transitions, 396 flow [2025-03-04 15:23:43,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 35.833333333333336) internal successors, (645), 18 states have internal predecessors, (645), 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) [2025-03-04 15:23:43,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:43,870 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:43,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 15:23:44,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:44,071 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:44,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1148230039, now seen corresponding path program 2 times [2025-03-04 15:23:44,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:44,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408976018] [2025-03-04 15:23:44,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:44,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:44,151 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-04 15:23:44,184 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:44,184 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:44,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:44,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:44,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408976018] [2025-03-04 15:23:44,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408976018] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:44,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695009057] [2025-03-04 15:23:44,626 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:44,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:44,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:44,628 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) [2025-03-04 15:23:44,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 15:23:44,827 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-04 15:23:44,924 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:44,924 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:44,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:44,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 15:23:44,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:44,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:45,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695009057] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:45,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-04 15:23:45,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157226529] [2025-03-04 15:23:45,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:45,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-04 15:23:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:45,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-04 15:23:45,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 15:23:45,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:45,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 88 transitions, 396 flow. Second operand has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 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) [2025-03-04 15:23:45,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:45,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:45,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:46,542 INFO L124 PetriNetUnfolderBase]: 121/552 cut-off events. [2025-03-04 15:23:46,542 INFO L125 PetriNetUnfolderBase]: For 1185/1185 co-relation queries the response was YES. [2025-03-04 15:23:46,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1446 conditions, 552 events. 121/552 cut-off events. For 1185/1185 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2079 event pairs, 100 based on Foata normal form. 16/513 useless extension candidates. Maximal degree in co-relation 1080. Up to 249 conditions per place. [2025-03-04 15:23:46,545 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 79 selfloop transitions, 31 changer transitions 0/142 dead transitions. [2025-03-04 15:23:46,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 142 transitions, 1080 flow [2025-03-04 15:23:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 15:23:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-04 15:23:46,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1170 transitions. [2025-03-04 15:23:46,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43885971492873216 [2025-03-04 15:23:46,549 INFO L175 Difference]: Start difference. First operand has 108 places, 88 transitions, 396 flow. Second operand 31 states and 1170 transitions. [2025-03-04 15:23:46,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 142 transitions, 1080 flow [2025-03-04 15:23:46,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 142 transitions, 1046 flow, removed 13 selfloop flow, removed 4 redundant places. [2025-03-04 15:23:46,557 INFO L231 Difference]: Finished difference. Result has 143 places, 105 transitions, 668 flow [2025-03-04 15:23:46,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=668, PETRI_PLACES=143, PETRI_TRANSITIONS=105} [2025-03-04 15:23:46,559 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 70 predicate places. [2025-03-04 15:23:46,559 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 105 transitions, 668 flow [2025-03-04 15:23:46,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 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) [2025-03-04 15:23:46,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:46,560 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:46,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:46,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-04 15:23:46,761 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:46,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:46,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1969890153, now seen corresponding path program 3 times [2025-03-04 15:23:46,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:46,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605057609] [2025-03-04 15:23:46,761 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:23:46,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:46,903 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-03-04 15:23:53,082 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:53,083 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2025-03-04 15:23:53,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:54,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:54,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605057609] [2025-03-04 15:23:54,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605057609] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:54,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052981014] [2025-03-04 15:23:54,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:23:54,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:54,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:54,472 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) [2025-03-04 15:23:54,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 15:23:54,804 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-03-04 15:23:54,852 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 88 statements. [2025-03-04 15:23:54,852 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 15:23:54,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:54,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:23:54,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-03-04 15:23:55,072 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:55,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052981014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:55,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:55,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 40 [2025-03-04 15:23:55,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279052308] [2025-03-04 15:23:55,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:55,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:23:55,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:55,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:23:55,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1246, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 15:23:55,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:23:55,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 105 transitions, 668 flow. Second operand has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 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) [2025-03-04 15:23:55,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:55,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:23:55,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:55,542 INFO L124 PetriNetUnfolderBase]: 121/537 cut-off events. [2025-03-04 15:23:55,542 INFO L125 PetriNetUnfolderBase]: For 1365/1365 co-relation queries the response was YES. [2025-03-04 15:23:55,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 537 events. 121/537 cut-off events. For 1365/1365 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2000 event pairs, 100 based on Foata normal form. 15/497 useless extension candidates. Maximal degree in co-relation 1065. Up to 242 conditions per place. [2025-03-04 15:23:55,545 INFO L140 encePairwiseOnDemand]: 76/86 looper letters, 68 selfloop transitions, 41 changer transitions 0/139 dead transitions. [2025-03-04 15:23:55,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 139 transitions, 1305 flow [2025-03-04 15:23:55,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 15:23:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 15:23:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 402 transitions. [2025-03-04 15:23:55,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4249471458773784 [2025-03-04 15:23:55,547 INFO L175 Difference]: Start difference. First operand has 143 places, 105 transitions, 668 flow. Second operand 11 states and 402 transitions. [2025-03-04 15:23:55,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 139 transitions, 1305 flow [2025-03-04 15:23:55,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 1253 flow, removed 2 selfloop flow, removed 12 redundant places. [2025-03-04 15:23:55,558 INFO L231 Difference]: Finished difference. Result has 145 places, 138 transitions, 1257 flow [2025-03-04 15:23:55,558 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1257, PETRI_PLACES=145, PETRI_TRANSITIONS=138} [2025-03-04 15:23:55,559 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 72 predicate places. [2025-03-04 15:23:55,559 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 138 transitions, 1257 flow [2025-03-04 15:23:55,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 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) [2025-03-04 15:23:55,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:55,559 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:55,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 15:23:55,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:55,760 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:55,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:55,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1911718902, now seen corresponding path program 1 times [2025-03-04 15:23:55,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:55,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217313671] [2025-03-04 15:23:55,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:55,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:55,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 15:23:55,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:55,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:55,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-03-04 15:23:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217313671] [2025-03-04 15:23:56,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217313671] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911889286] [2025-03-04 15:23:56,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:56,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:56,089 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) [2025-03-04 15:23:56,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 15:23:56,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 15:23:56,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:56,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:56,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:56,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 15:23:56,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:56,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911889286] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:57,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:57,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2025-03-04 15:23:57,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629298254] [2025-03-04 15:23:57,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:57,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2025-03-04 15:23:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:57,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2025-03-04 15:23:57,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 15:23:57,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:23:57,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 138 transitions, 1257 flow. Second operand has 64 states, 64 states have (on average 33.640625) internal successors, (2153), 64 states have internal predecessors, (2153), 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) [2025-03-04 15:23:57,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:57,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:23:57,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:03,422 INFO L124 PetriNetUnfolderBase]: 137/887 cut-off events. [2025-03-04 15:24:03,423 INFO L125 PetriNetUnfolderBase]: For 9786/9786 co-relation queries the response was YES. [2025-03-04 15:24:03,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3644 conditions, 887 events. 137/887 cut-off events. For 9786/9786 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2057 event pairs, 100 based on Foata normal form. 46/878 useless extension candidates. Maximal degree in co-relation 2988. Up to 247 conditions per place. [2025-03-04 15:24:03,431 INFO L140 encePairwiseOnDemand]: 77/86 looper letters, 157 selfloop transitions, 216 changer transitions 0/403 dead transitions. [2025-03-04 15:24:03,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 403 transitions, 5793 flow [2025-03-04 15:24:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2025-03-04 15:24:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2025-03-04 15:24:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 6243 transitions. [2025-03-04 15:24:03,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3988627651418349 [2025-03-04 15:24:03,445 INFO L175 Difference]: Start difference. First operand has 145 places, 138 transitions, 1257 flow. Second operand 182 states and 6243 transitions. [2025-03-04 15:24:03,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 403 transitions, 5793 flow [2025-03-04 15:24:03,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 403 transitions, 5771 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:03,471 INFO L231 Difference]: Finished difference. Result has 369 places, 292 transitions, 4125 flow [2025-03-04 15:24:03,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=1241, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=182, PETRI_FLOW=4125, PETRI_PLACES=369, PETRI_TRANSITIONS=292} [2025-03-04 15:24:03,472 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 296 predicate places. [2025-03-04 15:24:03,473 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 292 transitions, 4125 flow [2025-03-04 15:24:03,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 33.640625) internal successors, (2153), 64 states have internal predecessors, (2153), 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) [2025-03-04 15:24:03,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:03,474 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-04 15:24:03,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 15:24:03,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:03,674 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:03,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1674010321, now seen corresponding path program 1 times [2025-03-04 15:24:03,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803633609] [2025-03-04 15:24:03,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:03,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 15:24:50,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 15:24:50,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:50,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:24:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533923131] [2025-03-04 15:24:50,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:50,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:50,339 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:24:50,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 15:24:50,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 15:24:52,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 15:24:52,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:52,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:52,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 3192 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 15:24:52,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:24:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2025-03-04 15:24:52,658 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:24:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2025-03-04 15:24:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:52,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803633609] [2025-03-04 15:24:52,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:24:52,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533923131] [2025-03-04 15:24:52,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533923131] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:24:52,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 15:24:52,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2025-03-04 15:24:52,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176266463] [2025-03-04 15:24:52,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 15:24:52,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 15:24:52,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:52,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 15:24:52,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-03-04 15:24:52,951 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:24:52,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 292 transitions, 4125 flow. Second operand has 14 states, 14 states have (on average 33.857142857142854) internal successors, (474), 14 states have internal predecessors, (474), 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) [2025-03-04 15:24:52,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:52,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:24:52,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:54,123 INFO L124 PetriNetUnfolderBase]: 122/855 cut-off events. [2025-03-04 15:24:54,123 INFO L125 PetriNetUnfolderBase]: For 23699/23699 co-relation queries the response was YES. [2025-03-04 15:24:54,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4744 conditions, 855 events. 122/855 cut-off events. For 23699/23699 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2006 event pairs, 100 based on Foata normal form. 32/832 useless extension candidates. Maximal degree in co-relation 4043. Up to 242 conditions per place. [2025-03-04 15:24:54,131 INFO L140 encePairwiseOnDemand]: 76/86 looper letters, 107 selfloop transitions, 134 changer transitions 0/271 dead transitions. [2025-03-04 15:24:54,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 271 transitions, 4530 flow [2025-03-04 15:24:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-04 15:24:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-04 15:24:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 674 transitions. [2025-03-04 15:24:54,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.412484700122399 [2025-03-04 15:24:54,132 INFO L175 Difference]: Start difference. First operand has 369 places, 292 transitions, 4125 flow. Second operand 19 states and 674 transitions. [2025-03-04 15:24:54,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 271 transitions, 4530 flow [2025-03-04 15:24:54,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 271 transitions, 3988 flow, removed 80 selfloop flow, removed 38 redundant places. [2025-03-04 15:24:54,252 INFO L231 Difference]: Finished difference. Result has 350 places, 267 transitions, 3851 flow [2025-03-04 15:24:54,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3324, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3851, PETRI_PLACES=350, PETRI_TRANSITIONS=267} [2025-03-04 15:24:54,253 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 277 predicate places. [2025-03-04 15:24:54,253 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 267 transitions, 3851 flow [2025-03-04 15:24:54,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 33.857142857142854) internal successors, (474), 14 states have internal predecessors, (474), 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) [2025-03-04 15:24:54,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:54,253 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:54,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 15:24:54,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-04 15:24:54,454 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:54,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:54,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1641426730, now seen corresponding path program 2 times [2025-03-04 15:24:54,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:54,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311229881] [2025-03-04 15:24:54,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:24:54,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:54,833 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 317 statements into 2 equivalence classes. [2025-03-04 15:24:54,993 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 317 of 317 statements. [2025-03-04 15:24:54,994 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:24:54,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8976 backedges. 0 proven. 4566 refuted. 0 times theorem prover too weak. 4410 trivial. 0 not checked. [2025-03-04 15:24:55,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:55,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311229881] [2025-03-04 15:24:55,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311229881] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:24:55,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87401912] [2025-03-04 15:24:55,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:24:55,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:55,895 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:24:55,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 15:24:56,760 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 317 statements into 2 equivalence classes. [2025-03-04 15:24:57,301 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 317 of 317 statements. [2025-03-04 15:24:57,301 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:24:57,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:57,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 5985 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:24:57,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:24:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 8976 backedges. 0 proven. 4566 refuted. 0 times theorem prover too weak. 4410 trivial. 0 not checked. [2025-03-04 15:24:57,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:24:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 8976 backedges. 0 proven. 4566 refuted. 0 times theorem prover too weak. 4410 trivial. 0 not checked. [2025-03-04 15:24:57,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87401912] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:24:57,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:24:57,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-03-04 15:24:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924427706] [2025-03-04 15:24:57,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:24:57,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 15:24:57,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:57,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 15:24:57,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-03-04 15:24:57,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:24:57,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 267 transitions, 3851 flow. Second operand has 14 states, 14 states have (on average 37.357142857142854) internal successors, (523), 14 states have internal predecessors, (523), 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) [2025-03-04 15:24:57,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:57,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:24:57,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:58,671 INFO L124 PetriNetUnfolderBase]: 124/1222 cut-off events. [2025-03-04 15:24:58,671 INFO L125 PetriNetUnfolderBase]: For 61050/61050 co-relation queries the response was YES. [2025-03-04 15:24:58,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8696 conditions, 1222 events. 124/1222 cut-off events. For 61050/61050 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1805 event pairs, 100 based on Foata normal form. 3/1170 useless extension candidates. Maximal degree in co-relation 7998. Up to 243 conditions per place. [2025-03-04 15:24:58,681 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 339 selfloop transitions, 11 changer transitions 0/396 dead transitions. [2025-03-04 15:24:58,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 396 transitions, 7238 flow [2025-03-04 15:24:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 15:24:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 15:24:58,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 448 transitions. [2025-03-04 15:24:58,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47357293868921774 [2025-03-04 15:24:58,682 INFO L175 Difference]: Start difference. First operand has 350 places, 267 transitions, 3851 flow. Second operand 11 states and 448 transitions. [2025-03-04 15:24:58,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 396 transitions, 7238 flow [2025-03-04 15:24:58,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 396 transitions, 7134 flow, removed 24 selfloop flow, removed 12 redundant places. [2025-03-04 15:24:58,894 INFO L231 Difference]: Finished difference. Result has 352 places, 272 transitions, 4028 flow [2025-03-04 15:24:58,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3777, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4028, PETRI_PLACES=352, PETRI_TRANSITIONS=272} [2025-03-04 15:24:58,895 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 279 predicate places. [2025-03-04 15:24:58,895 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 272 transitions, 4028 flow [2025-03-04 15:24:58,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 37.357142857142854) internal successors, (523), 14 states have internal predecessors, (523), 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) [2025-03-04 15:24:58,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:58,896 INFO L206 CegarLoopForPetriNet]: trace histogram [63, 63, 62, 62, 62, 3, 2, 2, 2, 1, 1] [2025-03-04 15:24:58,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 15:24:59,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-04 15:24:59,096 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:59,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:59,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1752347033, now seen corresponding path program 2 times [2025-03-04 15:24:59,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:59,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108375685] [2025-03-04 15:24:59,098 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:24:59,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:59,486 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 323 statements into 2 equivalence classes.