./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.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_91-arrayloop2_racefree.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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:23:28,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:23:28,121 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:23:28,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:23:28,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:23:28,151 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:23:28,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:23:28,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:23:28,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:23:28,153 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:23:28,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:23:28,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:23:28,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:23:28,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:23:28,154 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:23:28,154 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:28,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:23:28,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:23:28,155 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 -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2025-03-04 15:23:28,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:23:28,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:23:28,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:23:28,416 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:23:28,416 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:23:28,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-03-04 15:23:29,566 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4d42fff/757687efd34d46e98c77839bc8a7793f/FLAG722b20340 [2025-03-04 15:23:29,855 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:23:29,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-03-04 15:23:29,875 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4d42fff/757687efd34d46e98c77839bc8a7793f/FLAG722b20340 [2025-03-04 15:23:30,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d4d42fff/757687efd34d46e98c77839bc8a7793f [2025-03-04 15:23:30,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:23:30,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:23:30,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:30,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:23:30,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:23:30,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3593a6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30, skipping insertion in model container [2025-03-04 15:23:30,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,170 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:23:30,425 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,426 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,426 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,426 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:30,475 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:23:30,508 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,508 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,508 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,509 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:30,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:30,565 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:23:30,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30 WrapperNode [2025-03-04 15:23:30,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:30,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:30,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:23:30,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:23:30,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,608 INFO L138 Inliner]: procedures = 279, calls = 120, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 258 [2025-03-04 15:23:30,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:30,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:23:30,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:23:30,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:23:30,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,638 INFO L175 MemorySlicer]: Split 96 memory accesses to 4 slices as follows [2, 5, 2, 87]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 0, 70]. The 12 writes are split as follows [0, 0, 1, 11]. [2025-03-04 15:23:30,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:23:30,656 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:23:30,656 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:23:30,656 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:23:30,657 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (1/1) ... [2025-03-04 15:23:30,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:30,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:30,685 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 15:23:30,691 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 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 15:23:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:23:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:23:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:23:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 15:23:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 15:23:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:23:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:23:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 15:23:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 15:23:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 15:23:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 15:23:30,708 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 15:23:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:23:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:23:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:23:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 15:23:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:23:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:23:30,710 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 15:23:30,837 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:23:30,839 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:23:31,126 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1061: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-04 15:23:31,127 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1061-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-04 15:23:31,214 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:23:31,215 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:23:31,548 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:23:31,548 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:23:31,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:31 BoogieIcfgContainer [2025-03-04 15:23:31,549 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:23:31,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:23:31,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:23:31,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:23:31,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:23:30" (1/3) ... [2025-03-04 15:23:31,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e10c261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:31, skipping insertion in model container [2025-03-04 15:23:31,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:30" (2/3) ... [2025-03-04 15:23:31,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e10c261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:31, skipping insertion in model container [2025-03-04 15:23:31,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:31" (3/3) ... [2025-03-04 15:23:31,556 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2025-03-04 15:23:31,568 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:23:31,569 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_91-arrayloop2_racefree.i that has 2 procedures, 70 locations, 1 initial locations, 10 loop locations, and 16 error locations. [2025-03-04 15:23:31,570 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:23:31,621 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 15:23:31,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 86 transitions, 179 flow [2025-03-04 15:23:31,687 INFO L124 PetriNetUnfolderBase]: 16/90 cut-off events. [2025-03-04 15:23:31,689 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:23:31,691 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 275 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 15:23:31,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 86 transitions, 179 flow [2025-03-04 15:23:31,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 85 transitions, 177 flow [2025-03-04 15:23:31,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:23:31,716 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;@e68a98c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:23:31,718 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-03-04 15:23:31,725 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:23:31,725 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-04 15:23:31,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:23:31,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:31,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:31,726 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 15:23:31,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:31,730 INFO L85 PathProgramCache]: Analyzing trace with hash 19656149, now seen corresponding path program 1 times [2025-03-04 15:23:31,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:31,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378392277] [2025-03-04 15:23:31,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:31,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:31,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:31,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:31,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:23:31,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303499601] [2025-03-04 15:23:31,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:31,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:31,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:31,892 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 15:23:31,893 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 15:23:31,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:32,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:32,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:32,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:32,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 15:23:32,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:32,034 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 15:23:32,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:32,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:32,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378392277] [2025-03-04 15:23:32,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:23:32,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303499601] [2025-03-04 15:23:32,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303499601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:32,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:32,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:23:32,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607159624] [2025-03-04 15:23:32,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:32,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:32,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:32,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:32,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:23:32,075 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 15:23:32,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:32,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:23:32,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:32,353 INFO L124 PetriNetUnfolderBase]: 121/402 cut-off events. [2025-03-04 15:23:32,353 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:23:32,354 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 1873 event pairs, 100 based on Foata normal form. 31/349 useless extension candidates. Maximal degree in co-relation 598. Up to 253 conditions per place. [2025-03-04 15:23:32,359 INFO L140 encePairwiseOnDemand]: 71/86 looper letters, 41 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2025-03-04 15:23:32,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 253 flow [2025-03-04 15:23:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2025-03-04 15:23:32,370 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6472868217054264 [2025-03-04 15:23:32,371 INFO L175 Difference]: Start difference. First operand has 73 places, 85 transitions, 177 flow. Second operand 3 states and 167 transitions. [2025-03-04 15:23:32,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 253 flow [2025-03-04 15:23:32,376 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 15:23:32,378 INFO L231 Difference]: Finished difference. Result has 76 places, 76 transitions, 173 flow [2025-03-04 15:23:32,379 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 15:23:32,385 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 3 predicate places. [2025-03-04 15:23:32,385 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 76 transitions, 173 flow [2025-03-04 15:23:32,385 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 15:23:32,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:32,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:32,392 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 15:23:32,590 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 15:23:32,590 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 15:23:32,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:32,591 INFO L85 PathProgramCache]: Analyzing trace with hash 19656176, now seen corresponding path program 1 times [2025-03-04 15:23:32,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:32,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371800640] [2025-03-04 15:23:32,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:32,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:32,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:32,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:32,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:32,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:32,747 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 15:23:32,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:32,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371800640] [2025-03-04 15:23:32,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371800640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:32,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:32,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:32,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024344690] [2025-03-04 15:23:32,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:32,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:32,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:32,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:32,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:32,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:23:32,756 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 15:23:32,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:32,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:23:32,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:32,948 INFO L124 PetriNetUnfolderBase]: 121/416 cut-off events. [2025-03-04 15:23:32,948 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-04 15:23:32,951 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 1952 event pairs, 100 based on Foata normal form. 4/336 useless extension candidates. Maximal degree in co-relation 655. Up to 258 conditions per place. [2025-03-04 15:23:32,953 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 39 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2025-03-04 15:23:32,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 259 flow [2025-03-04 15:23:32,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:32,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2025-03-04 15:23:32,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2025-03-04 15:23:32,956 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 173 flow. Second operand 3 states and 154 transitions. [2025-03-04 15:23:32,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 259 flow [2025-03-04 15:23:32,957 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 15:23:32,958 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 187 flow [2025-03-04 15:23:32,959 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 15:23:32,959 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2025-03-04 15:23:32,959 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 187 flow [2025-03-04 15:23:32,959 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 15:23:32,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:32,959 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:23:32,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:23:32,960 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 15:23:32,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:32,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1709707527, now seen corresponding path program 1 times [2025-03-04 15:23:32,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:32,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904395921] [2025-03-04 15:23:32,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:32,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:32,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:32,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:32,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:32,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:33,139 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 15:23:33,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:33,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904395921] [2025-03-04 15:23:33,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904395921] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:33,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:33,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:33,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953963496] [2025-03-04 15:23:33,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:33,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:33,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:33,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:33,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:33,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:33,154 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 15:23:33,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:33,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:33,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:33,345 INFO L124 PetriNetUnfolderBase]: 121/412 cut-off events. [2025-03-04 15:23:33,346 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-03-04 15:23:33,346 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 1937 event pairs, 100 based on Foata normal form. 4/336 useless extension candidates. Maximal degree in co-relation 642. Up to 262 conditions per place. [2025-03-04 15:23:33,347 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 40 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2025-03-04 15:23:33,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 78 transitions, 275 flow [2025-03-04 15:23:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2025-03-04 15:23:33,349 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2025-03-04 15:23:33,349 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 187 flow. Second operand 4 states and 184 transitions. [2025-03-04 15:23:33,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 78 transitions, 275 flow [2025-03-04 15:23:33,351 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 15:23:33,352 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 203 flow [2025-03-04 15:23:33,353 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 15:23:33,353 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 9 predicate places. [2025-03-04 15:23:33,353 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 203 flow [2025-03-04 15:23:33,353 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 15:23:33,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:33,353 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:33,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:23:33,353 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 15:23:33,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:33,354 INFO L85 PathProgramCache]: Analyzing trace with hash -119648964, now seen corresponding path program 1 times [2025-03-04 15:23:33,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:33,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635752725] [2025-03-04 15:23:33,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:33,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:33,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:23:33,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:23:33,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:33,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:33,481 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 15:23:33,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:33,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635752725] [2025-03-04 15:23:33,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635752725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:33,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:33,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:23:33,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422878128] [2025-03-04 15:23:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:33,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:33,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:33,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:33,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:33,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:33,497 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 15:23:33,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:33,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:33,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:33,825 INFO L124 PetriNetUnfolderBase]: 121/410 cut-off events. [2025-03-04 15:23:33,826 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-03-04 15:23:33,827 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. 2/334 useless extension candidates. Maximal degree in co-relation 643. Up to 257 conditions per place. [2025-03-04 15:23:33,828 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 46 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2025-03-04 15:23:33,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 84 transitions, 333 flow [2025-03-04 15:23:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:33,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:33,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-03-04 15:23:33,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5436046511627907 [2025-03-04 15:23:33,829 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 203 flow. Second operand 4 states and 187 transitions. [2025-03-04 15:23:33,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 84 transitions, 333 flow [2025-03-04 15:23:33,830 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 15:23:33,831 INFO L231 Difference]: Finished difference. Result has 85 places, 79 transitions, 219 flow [2025-03-04 15:23:33,831 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 15:23:33,832 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2025-03-04 15:23:33,832 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 79 transitions, 219 flow [2025-03-04 15:23:33,832 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 15:23:33,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:33,832 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:33,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:23:33,832 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 15:23:33,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:33,834 INFO L85 PathProgramCache]: Analyzing trace with hash 981454163, now seen corresponding path program 1 times [2025-03-04 15:23:33,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:33,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786185551] [2025-03-04 15:23:33,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:33,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:33,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:33,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:33,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:33,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:33,971 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 15:23:33,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786185551] [2025-03-04 15:23:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786185551] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340638971] [2025-03-04 15:23:33,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:33,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:33,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:33,974 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 15:23:33,975 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 15:23:34,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:34,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:34,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:34,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:34,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:23:34,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:34,172 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 15:23:34,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:34,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340638971] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:34,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:34,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-04 15:23:34,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679916395] [2025-03-04 15:23:34,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:34,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:23:34,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:34,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:23:34,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:23:34,185 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2025-03-04 15:23:34,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 79 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 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 15:23:34,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:34,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2025-03-04 15:23:34,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:34,360 INFO L124 PetriNetUnfolderBase]: 121/408 cut-off events. [2025-03-04 15:23:34,360 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-04 15:23:34,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 408 events. 121/408 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1898 event pairs, 100 based on Foata normal form. 2/332 useless extension candidates. Maximal degree in co-relation 667. Up to 250 conditions per place. [2025-03-04 15:23:34,362 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 35 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2025-03-04 15:23:34,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 78 transitions, 299 flow [2025-03-04 15:23:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:34,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:34,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2025-03-04 15:23:34,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5319767441860465 [2025-03-04 15:23:34,363 INFO L175 Difference]: Start difference. First operand has 85 places, 79 transitions, 219 flow. Second operand 4 states and 183 transitions. [2025-03-04 15:23:34,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 78 transitions, 299 flow [2025-03-04 15:23:34,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 78 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:34,364 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 225 flow [2025-03-04 15:23:34,364 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=4, PETRI_FLOW=225, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2025-03-04 15:23:34,366 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2025-03-04 15:23:34,366 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 225 flow [2025-03-04 15:23:34,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 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 15:23:34,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:34,367 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 15:23:34,373 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 15:23:34,567 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 15:23:34,568 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 15:23:34,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash 360308561, now seen corresponding path program 1 times [2025-03-04 15:23:34,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:34,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061680415] [2025-03-04 15:23:34,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:34,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:34,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:23:34,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:23:34,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:34,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:34,682 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 15:23:34,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:34,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061680415] [2025-03-04 15:23:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061680415] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52392654] [2025-03-04 15:23:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:34,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:34,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:34,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:34,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2025-03-04 15:23:34,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 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 15:23:34,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:34,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2025-03-04 15:23:34,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:34,854 INFO L124 PetriNetUnfolderBase]: 121/406 cut-off events. [2025-03-04 15:23:34,854 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-03-04 15:23:34,855 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 1883 event pairs, 100 based on Foata normal form. 2/330 useless extension candidates. Maximal degree in co-relation 666. Up to 254 conditions per place. [2025-03-04 15:23:34,856 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 36 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2025-03-04 15:23:34,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 78 transitions, 307 flow [2025-03-04 15:23:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2025-03-04 15:23:34,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5319767441860465 [2025-03-04 15:23:34,858 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 225 flow. Second operand 4 states and 183 transitions. [2025-03-04 15:23:34,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 78 transitions, 307 flow [2025-03-04 15:23:34,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 78 transitions, 291 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:23:34,860 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 225 flow [2025-03-04 15:23:34,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=80, 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=225, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2025-03-04 15:23:34,860 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2025-03-04 15:23:34,861 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 225 flow [2025-03-04 15:23:34,861 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 15:23:34,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:34,861 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:34,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:23:34,861 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 15:23:34,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:34,862 INFO L85 PathProgramCache]: Analyzing trace with hash 307181242, now seen corresponding path program 1 times [2025-03-04 15:23:34,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:34,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384175818] [2025-03-04 15:23:34,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:34,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:23:34,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:23:34,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:34,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:34,948 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 15:23:34,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384175818] [2025-03-04 15:23:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384175818] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471449033] [2025-03-04 15:23:34,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:34,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:34,952 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 15:23:34,955 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 15:23:35,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:23:35,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:23:35,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:35,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:35,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:23:35,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:35,109 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 15:23:35,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:35,140 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 15:23:35,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471449033] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:35,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:35,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 15:23:35,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258829112] [2025-03-04 15:23:35,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:35,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:23:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:35,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:23:35,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:23:35,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:35,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 225 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 15:23:35,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:35,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:35,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:35,612 INFO L124 PetriNetUnfolderBase]: 121/420 cut-off events. [2025-03-04 15:23:35,612 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2025-03-04 15:23:35,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 420 events. 121/420 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1980 event pairs, 100 based on Foata normal form. 4/346 useless extension candidates. Maximal degree in co-relation 696. Up to 252 conditions per place. [2025-03-04 15:23:35,614 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 43 selfloop transitions, 7 changer transitions 0/84 dead transitions. [2025-03-04 15:23:35,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 84 transitions, 360 flow [2025-03-04 15:23:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 15:23:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 15:23:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 288 transitions. [2025-03-04 15:23:35,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47840531561461797 [2025-03-04 15:23:35,616 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 225 flow. Second operand 7 states and 288 transitions. [2025-03-04 15:23:35,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 84 transitions, 360 flow [2025-03-04 15:23:35,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:35,632 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 265 flow [2025-03-04 15:23:35,632 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=82, 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=265, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2025-03-04 15:23:35,632 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 18 predicate places. [2025-03-04 15:23:35,632 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 265 flow [2025-03-04 15:23:35,633 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 15:23:35,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:35,633 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:35,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:35,833 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 15:23:35,834 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 15:23:35,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1006294842, now seen corresponding path program 2 times [2025-03-04 15:23:35,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:35,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985647375] [2025-03-04 15:23:35,836 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:35,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:35,878 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-03-04 15:23:35,881 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 25 statements. [2025-03-04 15:23:35,881 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:23:35,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:35,907 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 15:23:35,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:35,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985647375] [2025-03-04 15:23:35,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985647375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:35,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:35,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451346846] [2025-03-04 15:23:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:35,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:35,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:35,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:35,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:35,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2025-03-04 15:23:35,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 265 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 15:23:35,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:35,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2025-03-04 15:23:35,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:36,134 INFO L124 PetriNetUnfolderBase]: 144/435 cut-off events. [2025-03-04 15:23:36,134 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2025-03-04 15:23:36,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 842 conditions, 435 events. 144/435 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2003 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 15:23:36,136 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 85 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2025-03-04 15:23:36,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 124 transitions, 527 flow [2025-03-04 15:23:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 229 transitions. [2025-03-04 15:23:36,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6656976744186046 [2025-03-04 15:23:36,137 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 265 flow. Second operand 4 states and 229 transitions. [2025-03-04 15:23:36,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 124 transitions, 527 flow [2025-03-04 15:23:36,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 124 transitions, 519 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:36,142 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 263 flow [2025-03-04 15:23:36,142 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=87, 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=263, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2025-03-04 15:23:36,143 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 18 predicate places. [2025-03-04 15:23:36,144 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 263 flow [2025-03-04 15:23:36,144 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 15:23:36,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:36,144 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:36,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:23:36,144 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 15:23:36,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1280209844, now seen corresponding path program 1 times [2025-03-04 15:23:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723710705] [2025-03-04 15:23:36,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:36,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 15:23:36,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 15:23:36,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:36,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:36,371 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 15:23:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723710705] [2025-03-04 15:23:36,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723710705] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995227773] [2025-03-04 15:23:36,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:36,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:36,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:36,373 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 15:23:36,375 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 15:23:36,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 15:23:36,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 15:23:36,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:36,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:36,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:23:36,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:36,607 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 15:23:36,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:36,695 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 15:23:36,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995227773] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:36,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:36,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-04 15:23:36,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666131392] [2025-03-04 15:23:36,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:36,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 15:23:36,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:36,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 15:23:36,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 15:23:36,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:36,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 263 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 15:23:36,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:36,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:36,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:37,597 INFO L124 PetriNetUnfolderBase]: 121/454 cut-off events. [2025-03-04 15:23:37,597 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2025-03-04 15:23:37,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 454 events. 121/454 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2031 event pairs, 100 based on Foata normal form. 8/409 useless extension candidates. Maximal degree in co-relation 829. Up to 249 conditions per place. [2025-03-04 15:23:37,599 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 55 selfloop transitions, 15 changer transitions 0/102 dead transitions. [2025-03-04 15:23:37,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 565 flow [2025-03-04 15:23:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 15:23:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 15:23:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 582 transitions. [2025-03-04 15:23:37,601 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4511627906976744 [2025-03-04 15:23:37,601 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 263 flow. Second operand 15 states and 582 transitions. [2025-03-04 15:23:37,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 565 flow [2025-03-04 15:23:37,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 102 transitions, 559 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:23:37,605 INFO L231 Difference]: Finished difference. Result has 107 places, 88 transitions, 391 flow [2025-03-04 15:23:37,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=88, 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=391, PETRI_PLACES=107, PETRI_TRANSITIONS=88} [2025-03-04 15:23:37,606 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 34 predicate places. [2025-03-04 15:23:37,606 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 88 transitions, 391 flow [2025-03-04 15:23:37,606 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 15:23:37,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:37,606 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:37,618 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 15:23:37,806 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 15:23:37,807 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 15:23:37,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:37,807 INFO L85 PathProgramCache]: Analyzing trace with hash 494105268, now seen corresponding path program 2 times [2025-03-04 15:23:37,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:37,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354046167] [2025-03-04 15:23:37,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:37,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:37,875 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-04 15:23:37,913 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:37,913 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:37,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:38,369 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 15:23:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:38,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354046167] [2025-03-04 15:23:38,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354046167] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:38,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176250100] [2025-03-04 15:23:38,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:38,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:38,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:38,372 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 15:23:38,373 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 15:23:38,572 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-04 15:23:38,670 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:38,671 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:38,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:38,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 15:23:38,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:38,748 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 15:23:38,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:38,956 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 15:23:38,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176250100] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:38,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:38,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-04 15:23:38,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339169329] [2025-03-04 15:23:38,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:38,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-04 15:23:38,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:38,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-04 15:23:38,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 15:23:39,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:39,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 88 transitions, 391 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 15:23:39,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:39,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:39,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:40,851 INFO L124 PetriNetUnfolderBase]: 121/550 cut-off events. [2025-03-04 15:23:40,852 INFO L125 PetriNetUnfolderBase]: For 1078/1078 co-relation queries the response was YES. [2025-03-04 15:23:40,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 550 events. 121/550 cut-off events. For 1078/1078 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2074 event pairs, 100 based on Foata normal form. 16/513 useless extension candidates. Maximal degree in co-relation 1076. Up to 249 conditions per place. [2025-03-04 15:23:40,854 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 79 selfloop transitions, 31 changer transitions 0/142 dead transitions. [2025-03-04 15:23:40,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 142 transitions, 1075 flow [2025-03-04 15:23:40,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 15:23:40,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-04 15:23:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1170 transitions. [2025-03-04 15:23:40,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43885971492873216 [2025-03-04 15:23:40,858 INFO L175 Difference]: Start difference. First operand has 107 places, 88 transitions, 391 flow. Second operand 31 states and 1170 transitions. [2025-03-04 15:23:40,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 142 transitions, 1075 flow [2025-03-04 15:23:40,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 1005 flow, removed 30 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:40,864 INFO L231 Difference]: Finished difference. Result has 141 places, 105 transitions, 627 flow [2025-03-04 15:23:40,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=102, 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=627, PETRI_PLACES=141, PETRI_TRANSITIONS=105} [2025-03-04 15:23:40,865 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 68 predicate places. [2025-03-04 15:23:40,865 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 105 transitions, 627 flow [2025-03-04 15:23:40,866 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 15:23:40,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:40,866 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:40,874 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 15:23:41,066 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 15:23:41,067 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 15:23:41,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:41,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1189285708, now seen corresponding path program 3 times [2025-03-04 15:23:41,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:41,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45763408] [2025-03-04 15:23:41,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:23:41,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:41,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-03-04 15:23:45,817 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:45,817 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2025-03-04 15:23:45,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:47,256 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 15:23:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:47,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45763408] [2025-03-04 15:23:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45763408] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:47,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812141416] [2025-03-04 15:23:47,257 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:23:47,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:47,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:47,258 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 15:23:47,259 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 15:23:47,543 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-03-04 15:23:47,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 88 statements. [2025-03-04 15:23:47,586 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 15:23:47,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:47,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:23:47,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:47,793 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 15:23:47,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:47,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812141416] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:47,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:47,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [34] total 41 [2025-03-04 15:23:47,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219449890] [2025-03-04 15:23:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:47,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:23:47,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:47,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:23:47,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1354, Unknown=0, NotChecked=0, Total=1640 [2025-03-04 15:23:47,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:23:47,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 105 transitions, 627 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 15:23:47,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:47,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:23:47,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:48,282 INFO L124 PetriNetUnfolderBase]: 121/535 cut-off events. [2025-03-04 15:23:48,282 INFO L125 PetriNetUnfolderBase]: For 1190/1190 co-relation queries the response was YES. [2025-03-04 15:23:48,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 535 events. 121/535 cut-off events. For 1190/1190 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1986 event pairs, 100 based on Foata normal form. 15/497 useless extension candidates. Maximal degree in co-relation 1043. Up to 242 conditions per place. [2025-03-04 15:23:48,285 INFO L140 encePairwiseOnDemand]: 76/86 looper letters, 68 selfloop transitions, 41 changer transitions 0/139 dead transitions. [2025-03-04 15:23:48,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 139 transitions, 1225 flow [2025-03-04 15:23:48,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 15:23:48,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 15:23:48,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 402 transitions. [2025-03-04 15:23:48,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4249471458773784 [2025-03-04 15:23:48,286 INFO L175 Difference]: Start difference. First operand has 141 places, 105 transitions, 627 flow. Second operand 11 states and 402 transitions. [2025-03-04 15:23:48,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 139 transitions, 1225 flow [2025-03-04 15:23:48,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 139 transitions, 1141 flow, removed 18 selfloop flow, removed 12 redundant places. [2025-03-04 15:23:48,293 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 1145 flow [2025-03-04 15:23:48,294 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=127, 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=1145, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2025-03-04 15:23:48,295 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 70 predicate places. [2025-03-04 15:23:48,295 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 1145 flow [2025-03-04 15:23:48,295 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 15:23:48,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:48,295 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 15:23:48,304 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 15:23:48,499 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 15:23:48,499 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 15:23:48,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:48,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1483915549, now seen corresponding path program 1 times [2025-03-04 15:23:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:48,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402248047] [2025-03-04 15:23:48,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:48,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 15:23:48,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:48,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:48,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:48,933 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 15:23:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402248047] [2025-03-04 15:23:48,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402248047] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:48,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857312003] [2025-03-04 15:23:48,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:48,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:48,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:48,937 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 15:23:48,938 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 15:23:49,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 15:23:49,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:49,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:49,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:49,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 15:23:49,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:49,799 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 15:23:49,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:50,462 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 15:23:50,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857312003] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:50,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:50,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2025-03-04 15:23:50,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723781275] [2025-03-04 15:23:50,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:50,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2025-03-04 15:23:50,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:50,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2025-03-04 15:23:50,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 15:23:50,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:23:50,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 1145 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 15:23:50,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:50,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:23:50,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:56,715 INFO L124 PetriNetUnfolderBase]: 137/885 cut-off events. [2025-03-04 15:23:56,716 INFO L125 PetriNetUnfolderBase]: For 8449/8449 co-relation queries the response was YES. [2025-03-04 15:23:56,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3513 conditions, 885 events. 137/885 cut-off events. For 8449/8449 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2031 event pairs, 100 based on Foata normal form. 46/878 useless extension candidates. Maximal degree in co-relation 2859. Up to 247 conditions per place. [2025-03-04 15:23:56,721 INFO L140 encePairwiseOnDemand]: 77/86 looper letters, 157 selfloop transitions, 216 changer transitions 0/403 dead transitions. [2025-03-04 15:23:56,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 403 transitions, 5535 flow [2025-03-04 15:23:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2025-03-04 15:23:56,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2025-03-04 15:23:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 6243 transitions. [2025-03-04 15:23:56,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3988627651418349 [2025-03-04 15:23:56,732 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 1145 flow. Second operand 182 states and 6243 transitions. [2025-03-04 15:23:56,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 403 transitions, 5535 flow [2025-03-04 15:23:56,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 403 transitions, 5449 flow, removed 39 selfloop flow, removed 4 redundant places. [2025-03-04 15:23:56,756 INFO L231 Difference]: Finished difference. Result has 367 places, 292 transitions, 3804 flow [2025-03-04 15:23:56,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=139, 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=3804, PETRI_PLACES=367, PETRI_TRANSITIONS=292} [2025-03-04 15:23:56,756 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 294 predicate places. [2025-03-04 15:23:56,757 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 292 transitions, 3804 flow [2025-03-04 15:23:56,757 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 15:23:56,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:56,757 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:56,768 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 15:23:56,958 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 15:23:56,958 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 15:23:56,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:56,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1852949343, now seen corresponding path program 1 times [2025-03-04 15:23:56,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:56,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460782043] [2025-03-04 15:23:56,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:56,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:57,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 15:24:46,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 15:24:46,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:46,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:24:46,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685661168] [2025-03-04 15:24:46,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:46,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:46,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:46,039 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 15:24:46,041 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 15:24:46,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 15:24:50,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 15:24:50,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:50,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:50,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 3172 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:24:50,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:24:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 2206 trivial. 0 not checked. [2025-03-04 15:24:50,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:24:50,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:50,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460782043] [2025-03-04 15:24:50,717 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:24:50,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685661168] [2025-03-04 15:24:50,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685661168] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:50,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:50,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:24:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048102406] [2025-03-04 15:24:50,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:50,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:24:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:50,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:24:50,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:24:50,740 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:24:50,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 292 transitions, 3804 flow. Second operand has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 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 15:24:50,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:50,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:24:50,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:51,111 INFO L124 PetriNetUnfolderBase]: 122/827 cut-off events. [2025-03-04 15:24:51,111 INFO L125 PetriNetUnfolderBase]: For 22432/22432 co-relation queries the response was YES. [2025-03-04 15:24:51,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3661 conditions, 827 events. 122/827 cut-off events. For 22432/22432 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1931 event pairs, 100 based on Foata normal form. 58/832 useless extension candidates. Maximal degree in co-relation 2962. Up to 249 conditions per place. [2025-03-04 15:24:51,118 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 35 selfloop transitions, 196 changer transitions 0/262 dead transitions. [2025-03-04 15:24:51,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 262 transitions, 3941 flow [2025-03-04 15:24:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 15:24:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 15:24:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 279 transitions. [2025-03-04 15:24:51,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4634551495016611 [2025-03-04 15:24:51,119 INFO L175 Difference]: Start difference. First operand has 367 places, 292 transitions, 3804 flow. Second operand 7 states and 279 transitions. [2025-03-04 15:24:51,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 262 transitions, 3941 flow [2025-03-04 15:24:51,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 262 transitions, 3339 flow, removed 96 selfloop flow, removed 53 redundant places. [2025-03-04 15:24:51,175 INFO L231 Difference]: Finished difference. Result has 319 places, 262 transitions, 3269 flow [2025-03-04 15:24:51,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=2877, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3269, PETRI_PLACES=319, PETRI_TRANSITIONS=262} [2025-03-04 15:24:51,175 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 246 predicate places. [2025-03-04 15:24:51,176 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 262 transitions, 3269 flow [2025-03-04 15:24:51,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 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 15:24:51,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:51,176 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 2, 2, 2, 1, 1, 1] [2025-03-04 15:24:51,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-04 15:24:51,376 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 15:24:51,377 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:51,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1031633020, now seen corresponding path program 1 times [2025-03-04 15:24:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:51,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837542659] [2025-03-04 15:24:51,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:51,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 309 statements into 1 equivalence classes. [2025-03-04 15:24:51,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 309 of 309 statements. [2025-03-04 15:24:51,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:51,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:52,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8974 backedges. 4563 proven. 0 refuted. 0 times theorem prover too weak. 4411 trivial. 0 not checked. [2025-03-04 15:24:52,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:52,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837542659] [2025-03-04 15:24:52,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837542659] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:52,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:52,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:52,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354114272] [2025-03-04 15:24:52,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:52,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:52,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:52,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:52,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:52,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:24:52,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 262 transitions, 3269 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 15:24:52,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:52,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:24:52,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:52,764 INFO L124 PetriNetUnfolderBase]: 122/825 cut-off events. [2025-03-04 15:24:52,764 INFO L125 PetriNetUnfolderBase]: For 7449/7449 co-relation queries the response was YES. [2025-03-04 15:24:52,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3493 conditions, 825 events. 122/825 cut-off events. For 7449/7449 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1926 event pairs, 100 based on Foata normal form. 2/774 useless extension candidates. Maximal degree in co-relation 2814. Up to 245 conditions per place. [2025-03-04 15:24:52,772 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 211 selfloop transitions, 8 changer transitions 0/261 dead transitions. [2025-03-04 15:24:52,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 261 transitions, 3703 flow [2025-03-04 15:24:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2025-03-04 15:24:52,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5406976744186046 [2025-03-04 15:24:52,773 INFO L175 Difference]: Start difference. First operand has 319 places, 262 transitions, 3269 flow. Second operand 4 states and 186 transitions. [2025-03-04 15:24:52,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 261 transitions, 3703 flow [2025-03-04 15:24:52,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 261 transitions, 3580 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 15:24:52,811 INFO L231 Difference]: Finished difference. Result has 316 places, 261 transitions, 3158 flow [2025-03-04 15:24:52,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3142, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3158, PETRI_PLACES=316, PETRI_TRANSITIONS=261} [2025-03-04 15:24:52,813 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 243 predicate places. [2025-03-04 15:24:52,813 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 261 transitions, 3158 flow [2025-03-04 15:24:52,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 15:24:52,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:52,813 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 15:24:52,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 15:24:52,813 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:52,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:52,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1800582536, now seen corresponding path program 2 times [2025-03-04 15:24:52,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:52,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503774720] [2025-03-04 15:24:52,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:24:52,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:53,193 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 317 statements into 2 equivalence classes. [2025-03-04 15:24:53,337 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 317 of 317 statements. [2025-03-04 15:24:53,337 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:24:53,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:54,137 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 15:24:54,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503774720] [2025-03-04 15:24:54,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503774720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:24:54,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907866880] [2025-03-04 15:24:54,138 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:24:54,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:54,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:54,140 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 15:24:54,141 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 15:24:55,158 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 317 statements into 2 equivalence classes. [2025-03-04 15:24:55,688 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 317 of 317 statements. [2025-03-04 15:24:55,688 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:24:55,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:55,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 5935 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:24:55,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:24:55,953 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 15:24:55,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:24:56,197 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 15:24:56,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907866880] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:24:56,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:24:56,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-03-04 15:24:56,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828993219] [2025-03-04 15:24:56,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:24:56,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 15:24:56,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:56,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 15:24:56,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-03-04 15:24:56,223 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:24:56,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 261 transitions, 3158 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 15:24:56,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:56,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:24:56,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:57,027 INFO L124 PetriNetUnfolderBase]: 124/1136 cut-off events. [2025-03-04 15:24:57,027 INFO L125 PetriNetUnfolderBase]: For 13606/13606 co-relation queries the response was YES. [2025-03-04 15:24:57,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5327 conditions, 1136 events. 124/1136 cut-off events. For 13606/13606 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1724 event pairs, 100 based on Foata normal form. 3/1086 useless extension candidates. Maximal degree in co-relation 4650. Up to 243 conditions per place. [2025-03-04 15:24:57,033 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 336 selfloop transitions, 11 changer transitions 0/389 dead transitions. [2025-03-04 15:24:57,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 389 transitions, 6083 flow [2025-03-04 15:24:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 15:24:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 15:24:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 445 transitions. [2025-03-04 15:24:57,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4704016913319239 [2025-03-04 15:24:57,034 INFO L175 Difference]: Start difference. First operand has 316 places, 261 transitions, 3158 flow. Second operand 11 states and 445 transitions. [2025-03-04 15:24:57,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 389 transitions, 6083 flow [2025-03-04 15:24:57,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 389 transitions, 6051 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:57,083 INFO L231 Difference]: Finished difference. Result has 327 places, 267 transitions, 3491 flow [2025-03-04 15:24:57,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3142, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3491, PETRI_PLACES=327, PETRI_TRANSITIONS=267} [2025-03-04 15:24:57,083 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 254 predicate places. [2025-03-04 15:24:57,083 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 267 transitions, 3491 flow [2025-03-04 15:24:57,084 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 15:24:57,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:57,084 INFO L206 CegarLoopForPetriNet]: trace histogram [150, 150, 150, 150, 150, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:57,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 15:24:57,284 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,SelfDestructingSolverStorable14 [2025-03-04 15:24:57,284 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:57,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash -513798171, now seen corresponding path program 3 times [2025-03-04 15:24:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905492427] [2025-03-04 15:24:57,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:24:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:58,247 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 779 statements into 153 equivalence classes.