./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:47:05,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:47:05,727 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:47:05,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:47:05,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:47:05,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:47:05,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:47:05,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:47:05,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:47:05,755 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:47:05,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:47:05,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:47:05,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:47:05,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:47:05,757 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:47:05,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:47:05,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:47:05,757 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:47:05,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:47:05,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:47:05,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:47:05,758 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:47:05,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:47:05,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:47:05,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:47:05,759 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-jdk21/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 -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2025-02-06 18:47:05,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:47:05,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:47:06,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:47:06,001 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:47:06,001 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:47:06,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2025-02-06 18:47:07,173 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/671c0404a/aecd239f233b4d6fb30fdbab65221a51/FLAGa0d7fa82e [2025-02-06 18:47:07,467 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:47:07,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2025-02-06 18:47:07,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/671c0404a/aecd239f233b4d6fb30fdbab65221a51/FLAGa0d7fa82e [2025-02-06 18:47:07,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/671c0404a/aecd239f233b4d6fb30fdbab65221a51 [2025-02-06 18:47:07,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:47:07,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:47:07,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:47:07,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:47:07,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:47:07,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:07,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3521c609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07, skipping insertion in model container [2025-02-06 18:47:07,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:07,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:47:07,792 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,792 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,793 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,793 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:47:07,846 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:47:07,891 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,891 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,892 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,892 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:47:07,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:47:07,939 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:47:07,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07 WrapperNode [2025-02-06 18:47:07,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:47:07,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:47:07,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:47:07,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:47:07,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:07,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:07,979 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 300 [2025-02-06 18:47:07,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:47:07,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:47:07,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:47:07,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:47:07,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:07,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:07,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,005 INFO L175 MemorySlicer]: Split 98 memory accesses to 4 slices as follows [2, 5, 2, 89]. 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]. [2025-02-06 18:47:08,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,014 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:47:08,022 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:47:08,022 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:47:08,022 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:47:08,023 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (1/1) ... [2025-02-06 18:47:08,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:47:08,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:08,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:47:08,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:47:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:47:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:47:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:47:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:47:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:47:08,080 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:47:08,229 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:47:08,230 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:47:08,525 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 18:47:08,525 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 18:47:08,614 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:47:08,614 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:47:09,019 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:47:09,019 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:47:09,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:47:09 BoogieIcfgContainer [2025-02-06 18:47:09,019 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:47:09,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:47:09,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:47:09,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:47:09,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:47:07" (1/3) ... [2025-02-06 18:47:09,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790de7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:47:09, skipping insertion in model container [2025-02-06 18:47:09,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:47:07" (2/3) ... [2025-02-06 18:47:09,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790de7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:47:09, skipping insertion in model container [2025-02-06 18:47:09,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:47:09" (3/3) ... [2025-02-06 18:47:09,028 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2025-02-06 18:47:09,039 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:47:09,040 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_93-evilcollapse_racefree.i that has 2 procedures, 74 locations, 1 initial locations, 11 loop locations, and 16 error locations. [2025-02-06 18:47:09,040 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:47:09,093 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 18:47:09,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 90 transitions, 187 flow [2025-02-06 18:47:09,160 INFO L124 PetriNetUnfolderBase]: 16/94 cut-off events. [2025-02-06 18:47:09,161 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:47:09,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 94 events. 16/94 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 277 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2025-02-06 18:47:09,165 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 90 transitions, 187 flow [2025-02-06 18:47:09,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 89 transitions, 185 flow [2025-02-06 18:47:09,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:47:09,186 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;@2cf33891, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:47:09,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 18:47:09,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:47:09,194 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-02-06 18:47:09,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:47:09,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:09,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 18:47:09,196 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)] === [2025-02-06 18:47:09,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:09,200 INFO L85 PathProgramCache]: Analyzing trace with hash 23457682, now seen corresponding path program 1 times [2025-02-06 18:47:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:09,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748062976] [2025-02-06 18:47:09,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:09,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:09,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:47:09,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:47:09,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:09,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 18:47:09,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595828065] [2025-02-06 18:47:09,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:09,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:09,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:09,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:09,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:47:09,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:47:09,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:47:09,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:09,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:09,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:47:09,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:09,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:47:09,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:09,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748062976] [2025-02-06 18:47:09,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 18:47:09,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595828065] [2025-02-06 18:47:09,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595828065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:09,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:09,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:47:09,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038598951] [2025-02-06 18:47:09,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:09,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:47:09,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:09,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:47:09,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:47:09,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 90 [2025-02-06 18:47:09,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2025-02-06 18:47:09,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:09,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 90 [2025-02-06 18:47:09,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:09,775 INFO L124 PetriNetUnfolderBase]: 121/426 cut-off events. [2025-02-06 18:47:09,775 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:47:09,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 426 events. 121/426 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1986 event pairs, 100 based on Foata normal form. 55/397 useless extension candidates. Maximal degree in co-relation 622. Up to 253 conditions per place. [2025-02-06 18:47:09,782 INFO L140 encePairwiseOnDemand]: 75/90 looper letters, 41 selfloop transitions, 2 changer transitions 0/84 dead transitions. [2025-02-06 18:47:09,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 84 transitions, 261 flow [2025-02-06 18:47:09,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:47:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:47:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2025-02-06 18:47:09,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662962962962963 [2025-02-06 18:47:09,794 INFO L175 Difference]: Start difference. First operand has 77 places, 89 transitions, 185 flow. Second operand 3 states and 179 transitions. [2025-02-06 18:47:09,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 84 transitions, 261 flow [2025-02-06 18:47:09,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 84 transitions, 261 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:47:09,801 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 181 flow [2025-02-06 18:47:09,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2025-02-06 18:47:09,807 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2025-02-06 18:47:09,807 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 181 flow [2025-02-06 18:47:09,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2025-02-06 18:47:09,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:09,808 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 18:47:09,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:47:10,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 18:47:10,013 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)] === [2025-02-06 18:47:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash 23457680, now seen corresponding path program 1 times [2025-02-06 18:47:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999398207] [2025-02-06 18:47:10,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:10,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:47:10,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:47:10,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:10,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:10,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:10,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999398207] [2025-02-06 18:47:10,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999398207] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:10,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:10,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:47:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999426255] [2025-02-06 18:47:10,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:10,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:47:10,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:10,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:47:10,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:47:10,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 90 [2025-02-06 18:47:10,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 80 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2025-02-06 18:47:10,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:10,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 90 [2025-02-06 18:47:10,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:10,387 INFO L124 PetriNetUnfolderBase]: 121/440 cut-off events. [2025-02-06 18:47:10,387 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 18:47:10,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 440 events. 121/440 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2058 event pairs, 100 based on Foata normal form. 4/360 useless extension candidates. Maximal degree in co-relation 679. Up to 258 conditions per place. [2025-02-06 18:47:10,392 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 39 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2025-02-06 18:47:10,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 267 flow [2025-02-06 18:47:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:47:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:47:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2025-02-06 18:47:10,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2025-02-06 18:47:10,395 INFO L175 Difference]: Start difference. First operand has 80 places, 80 transitions, 181 flow. Second operand 3 states and 166 transitions. [2025-02-06 18:47:10,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 267 flow [2025-02-06 18:47:10,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 82 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:47:10,398 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 195 flow [2025-02-06 18:47:10,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2025-02-06 18:47:10,398 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2025-02-06 18:47:10,398 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 195 flow [2025-02-06 18:47:10,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2025-02-06 18:47:10,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:10,399 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 18:47:10,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:47:10,399 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)] === [2025-02-06 18:47:10,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1068017809, now seen corresponding path program 1 times [2025-02-06 18:47:10,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:10,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280133808] [2025-02-06 18:47:10,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:10,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:10,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:47:10,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:47:10,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:10,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:10,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:10,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280133808] [2025-02-06 18:47:10,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280133808] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:10,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:10,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:47:10,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72853417] [2025-02-06 18:47:10,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:10,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:47:10,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:10,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:47:10,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:47:10,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 90 [2025-02-06 18:47:10,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-02-06 18:47:10,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:10,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 90 [2025-02-06 18:47:10,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:10,845 INFO L124 PetriNetUnfolderBase]: 121/436 cut-off events. [2025-02-06 18:47:10,846 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-02-06 18:47:10,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 436 events. 121/436 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2042 event pairs, 100 based on Foata normal form. 4/360 useless extension candidates. Maximal degree in co-relation 666. Up to 262 conditions per place. [2025-02-06 18:47:10,847 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 40 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2025-02-06 18:47:10,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 283 flow [2025-02-06 18:47:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:47:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:47:10,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2025-02-06 18:47:10,849 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2025-02-06 18:47:10,849 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 195 flow. Second operand 4 states and 200 transitions. [2025-02-06 18:47:10,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 283 flow [2025-02-06 18:47:10,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 281 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:47:10,851 INFO L231 Difference]: Finished difference. Result has 86 places, 82 transitions, 211 flow [2025-02-06 18:47:10,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2025-02-06 18:47:10,851 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 9 predicate places. [2025-02-06 18:47:10,851 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 211 flow [2025-02-06 18:47:10,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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) [2025-02-06 18:47:10,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:10,851 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:10,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:47:10,852 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)] === [2025-02-06 18:47:10,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash 201495365, now seen corresponding path program 1 times [2025-02-06 18:47:10,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:10,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458799491] [2025-02-06 18:47:10,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:10,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:10,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:47:10,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:47:10,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:10,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:10,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:10,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458799491] [2025-02-06 18:47:10,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458799491] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:10,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147638143] [2025-02-06 18:47:10,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:10,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:10,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:10,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:10,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:47:11,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:47:11,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:47:11,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:11,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:11,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:47:11,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:11,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147638143] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:11,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:11,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 18:47:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881144458] [2025-02-06 18:47:11,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:11,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:47:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:11,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:47:11,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:47:11,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 90 [2025-02-06 18:47:11,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 211 flow. Second operand has 10 states, 10 states have (on average 39.5) internal successors, (395), 10 states have internal predecessors, (395), 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) [2025-02-06 18:47:11,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:11,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 90 [2025-02-06 18:47:11,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:11,790 INFO L124 PetriNetUnfolderBase]: 121/452 cut-off events. [2025-02-06 18:47:11,790 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-02-06 18:47:11,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 452 events. 121/452 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2127 event pairs, 100 based on Foata normal form. 6/378 useless extension candidates. Maximal degree in co-relation 685. Up to 252 conditions per place. [2025-02-06 18:47:11,793 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 43 selfloop transitions, 9 changer transitions 0/90 dead transitions. [2025-02-06 18:47:11,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 90 transitions, 345 flow [2025-02-06 18:47:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 18:47:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 18:47:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 396 transitions. [2025-02-06 18:47:11,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2025-02-06 18:47:11,795 INFO L175 Difference]: Start difference. First operand has 86 places, 82 transitions, 211 flow. Second operand 9 states and 396 transitions. [2025-02-06 18:47:11,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 90 transitions, 345 flow [2025-02-06 18:47:11,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 90 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:47:11,797 INFO L231 Difference]: Finished difference. Result has 96 places, 86 transitions, 261 flow [2025-02-06 18:47:11,797 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=261, PETRI_PLACES=96, PETRI_TRANSITIONS=86} [2025-02-06 18:47:11,799 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 19 predicate places. [2025-02-06 18:47:11,799 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 86 transitions, 261 flow [2025-02-06 18:47:11,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.5) internal successors, (395), 10 states have internal predecessors, (395), 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) [2025-02-06 18:47:11,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:11,800 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:11,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:47:12,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:12,001 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)] === [2025-02-06 18:47:12,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:12,002 INFO L85 PathProgramCache]: Analyzing trace with hash 363541254, now seen corresponding path program 1 times [2025-02-06 18:47:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:12,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106391670] [2025-02-06 18:47:12,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:12,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:12,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:47:12,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:47:12,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:12,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:12,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106391670] [2025-02-06 18:47:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106391670] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793885873] [2025-02-06 18:47:12,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:12,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:12,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:12,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:12,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:47:12,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:47:12,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:47:12,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:12,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:12,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:47:12,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:12,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:12,349 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:47:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793885873] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:12,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:47:12,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:47:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474545114] [2025-02-06 18:47:12,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:12,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:47:12,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:12,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:47:12,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:47:12,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 90 [2025-02-06 18:47:12,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2025-02-06 18:47:12,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:12,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 90 [2025-02-06 18:47:12,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:12,670 INFO L124 PetriNetUnfolderBase]: 121/448 cut-off events. [2025-02-06 18:47:12,670 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2025-02-06 18:47:12,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 448 events. 121/448 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2096 event pairs, 100 based on Foata normal form. 4/372 useless extension candidates. Maximal degree in co-relation 702. Up to 250 conditions per place. [2025-02-06 18:47:12,673 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 36 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2025-02-06 18:47:12,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 84 transitions, 335 flow [2025-02-06 18:47:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:47:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:47:12,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2025-02-06 18:47:12,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5111111111111111 [2025-02-06 18:47:12,674 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 261 flow. Second operand 6 states and 276 transitions. [2025-02-06 18:47:12,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 84 transitions, 335 flow [2025-02-06 18:47:12,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 84 transitions, 327 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-06 18:47:12,676 INFO L231 Difference]: Finished difference. Result has 96 places, 84 transitions, 255 flow [2025-02-06 18:47:12,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=255, PETRI_PLACES=96, PETRI_TRANSITIONS=84} [2025-02-06 18:47:12,679 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 19 predicate places. [2025-02-06 18:47:12,679 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 84 transitions, 255 flow [2025-02-06 18:47:12,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2025-02-06 18:47:12,679 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:12,679 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-02-06 18:47:12,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:47:12,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:12,883 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)] === [2025-02-06 18:47:12,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:12,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1251520747, now seen corresponding path program 1 times [2025-02-06 18:47:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:12,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789687206] [2025-02-06 18:47:12,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:12,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:12,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:47:12,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:47:12,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:12,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:47:12,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:12,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789687206] [2025-02-06 18:47:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789687206] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:12,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:12,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:47:12,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136935480] [2025-02-06 18:47:12,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:12,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:47:12,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:12,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:47:12,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:47:12,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 90 [2025-02-06 18:47:12,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2025-02-06 18:47:12,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:12,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 90 [2025-02-06 18:47:12,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:13,122 INFO L124 PetriNetUnfolderBase]: 121/446 cut-off events. [2025-02-06 18:47:13,122 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2025-02-06 18:47:13,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 446 events. 121/446 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2080 event pairs, 100 based on Foata normal form. 2/368 useless extension candidates. Maximal degree in co-relation 708. Up to 256 conditions per place. [2025-02-06 18:47:13,124 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 35 selfloop transitions, 9 changer transitions 0/84 dead transitions. [2025-02-06 18:47:13,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 84 transitions, 341 flow [2025-02-06 18:47:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:47:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:47:13,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2025-02-06 18:47:13,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5527777777777778 [2025-02-06 18:47:13,127 INFO L175 Difference]: Start difference. First operand has 96 places, 84 transitions, 255 flow. Second operand 4 states and 199 transitions. [2025-02-06 18:47:13,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 84 transitions, 341 flow [2025-02-06 18:47:13,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 84 transitions, 325 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-02-06 18:47:13,129 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 263 flow [2025-02-06 18:47:13,129 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=263, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2025-02-06 18:47:13,130 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 16 predicate places. [2025-02-06 18:47:13,130 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 263 flow [2025-02-06 18:47:13,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2025-02-06 18:47:13,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:13,130 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-02-06 18:47:13,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:47:13,130 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:47:13,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:13,134 INFO L85 PathProgramCache]: Analyzing trace with hash -120570331, now seen corresponding path program 2 times [2025-02-06 18:47:13,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:13,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279526855] [2025-02-06 18:47:13,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:13,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:13,171 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-06 18:47:13,176 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-02-06 18:47:13,176 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:47:13,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 18:47:13,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:13,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279526855] [2025-02-06 18:47:13,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279526855] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:47:13,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:47:13,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:47:13,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502405650] [2025-02-06 18:47:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:47:13,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:47:13,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:13,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:47:13,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:47:13,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 90 [2025-02-06 18:47:13,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 263 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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) [2025-02-06 18:47:13,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:13,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 90 [2025-02-06 18:47:13,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:13,513 INFO L124 PetriNetUnfolderBase]: 121/444 cut-off events. [2025-02-06 18:47:13,513 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2025-02-06 18:47:13,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 444 events. 121/444 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2085 event pairs, 100 based on Foata normal form. 2/368 useless extension candidates. Maximal degree in co-relation 690. Up to 261 conditions per place. [2025-02-06 18:47:13,514 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 50 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2025-02-06 18:47:13,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 92 transitions, 441 flow [2025-02-06 18:47:13,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:47:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:47:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2025-02-06 18:47:13,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5638888888888889 [2025-02-06 18:47:13,515 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 263 flow. Second operand 4 states and 203 transitions. [2025-02-06 18:47:13,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 92 transitions, 441 flow [2025-02-06 18:47:13,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 417 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 18:47:13,517 INFO L231 Difference]: Finished difference. Result has 96 places, 85 transitions, 274 flow [2025-02-06 18:47:13,518 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=96, PETRI_TRANSITIONS=85} [2025-02-06 18:47:13,518 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 19 predicate places. [2025-02-06 18:47:13,518 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 85 transitions, 274 flow [2025-02-06 18:47:13,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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) [2025-02-06 18:47:13,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:13,518 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:47:13,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:47:13,519 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)] === [2025-02-06 18:47:13,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:13,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1829639385, now seen corresponding path program 1 times [2025-02-06 18:47:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:13,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025962502] [2025-02-06 18:47:13,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:13,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:13,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 18:47:13,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 18:47:13,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:13,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 18:47:13,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025962502] [2025-02-06 18:47:13,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025962502] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138690777] [2025-02-06 18:47:13,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:13,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:13,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:13,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:47:13,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 18:47:13,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 18:47:13,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:13,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:13,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:47:13,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:13,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:47:14,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138690777] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:14,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:14,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-02-06 18:47:14,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427500362] [2025-02-06 18:47:14,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:14,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:47:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:14,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:47:14,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:47:14,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 90 [2025-02-06 18:47:14,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 85 transitions, 274 flow. Second operand has 19 states, 19 states have (on average 37.8421052631579) internal successors, (719), 19 states have internal predecessors, (719), 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) [2025-02-06 18:47:14,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:14,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 90 [2025-02-06 18:47:14,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:15,248 INFO L124 PetriNetUnfolderBase]: 126/546 cut-off events. [2025-02-06 18:47:15,248 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2025-02-06 18:47:15,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 546 events. 126/546 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2271 event pairs, 100 based on Foata normal form. 13/481 useless extension candidates. Maximal degree in co-relation 1021. Up to 251 conditions per place. [2025-02-06 18:47:15,252 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 79 selfloop transitions, 55 changer transitions 0/170 dead transitions. [2025-02-06 18:47:15,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 170 transitions, 1145 flow [2025-02-06 18:47:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-06 18:47:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-02-06 18:47:15,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1731 transitions. [2025-02-06 18:47:15,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43712121212121213 [2025-02-06 18:47:15,258 INFO L175 Difference]: Start difference. First operand has 96 places, 85 transitions, 274 flow. Second operand 44 states and 1731 transitions. [2025-02-06 18:47:15,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 170 transitions, 1145 flow [2025-02-06 18:47:15,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 170 transitions, 1141 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:47:15,264 INFO L231 Difference]: Finished difference. Result has 150 places, 133 transitions, 829 flow [2025-02-06 18:47:15,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=829, PETRI_PLACES=150, PETRI_TRANSITIONS=133} [2025-02-06 18:47:15,265 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 73 predicate places. [2025-02-06 18:47:15,265 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 133 transitions, 829 flow [2025-02-06 18:47:15,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 37.8421052631579) internal successors, (719), 19 states have internal predecessors, (719), 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) [2025-02-06 18:47:15,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:15,265 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:15,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:15,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 18:47:15,466 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)] === [2025-02-06 18:47:15,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash 855489487, now seen corresponding path program 1 times [2025-02-06 18:47:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:15,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597192257] [2025-02-06 18:47:15,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:15,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 18:47:15,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 18:47:15,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:15,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:16,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:16,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597192257] [2025-02-06 18:47:16,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597192257] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:16,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137061063] [2025-02-06 18:47:16,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:16,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:16,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:16,093 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:16,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:47:16,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 18:47:16,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 18:47:16,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:16,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:16,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 18:47:16,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:16,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:16,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137061063] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:16,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:16,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-02-06 18:47:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850697245] [2025-02-06 18:47:16,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:16,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-06 18:47:16,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:16,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-06 18:47:16,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 18:47:16,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 90 [2025-02-06 18:47:16,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 133 transitions, 829 flow. Second operand has 34 states, 34 states have (on average 39.6764705882353) internal successors, (1349), 34 states have internal predecessors, (1349), 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) [2025-02-06 18:47:16,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:16,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 90 [2025-02-06 18:47:16,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:18,306 INFO L124 PetriNetUnfolderBase]: 122/698 cut-off events. [2025-02-06 18:47:18,307 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2025-02-06 18:47:18,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2065 conditions, 698 events. 122/698 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2353 event pairs, 100 based on Foata normal form. 24/644 useless extension candidates. Maximal degree in co-relation 1691. Up to 255 conditions per place. [2025-02-06 18:47:18,310 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 112 selfloop transitions, 93 changer transitions 0/243 dead transitions. [2025-02-06 18:47:18,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 243 transitions, 2471 flow [2025-02-06 18:47:18,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-02-06 18:47:18,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-02-06 18:47:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1294 transitions. [2025-02-06 18:47:18,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4637992831541219 [2025-02-06 18:47:18,315 INFO L175 Difference]: Start difference. First operand has 150 places, 133 transitions, 829 flow. Second operand 31 states and 1294 transitions. [2025-02-06 18:47:18,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 243 transitions, 2471 flow [2025-02-06 18:47:18,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 243 transitions, 2363 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-02-06 18:47:18,330 INFO L231 Difference]: Finished difference. Result has 184 places, 184 transitions, 1566 flow [2025-02-06 18:47:18,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1566, PETRI_PLACES=184, PETRI_TRANSITIONS=184} [2025-02-06 18:47:18,331 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 107 predicate places. [2025-02-06 18:47:18,331 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 184 transitions, 1566 flow [2025-02-06 18:47:18,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 39.6764705882353) internal successors, (1349), 34 states have internal predecessors, (1349), 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) [2025-02-06 18:47:18,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:18,332 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:18,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:18,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:18,533 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)] === [2025-02-06 18:47:18,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:18,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1821356111, now seen corresponding path program 2 times [2025-02-06 18:47:18,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:18,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994533702] [2025-02-06 18:47:18,533 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:18,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:18,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-02-06 18:47:18,740 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 18:47:18,741 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:47:18,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:20,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:20,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994533702] [2025-02-06 18:47:20,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994533702] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:20,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491157446] [2025-02-06 18:47:20,050 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:20,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:20,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:20,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:47:20,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:47:20,418 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-02-06 18:47:20,631 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 18:47:20,631 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:47:20,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:20,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-02-06 18:47:20,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:20,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491157446] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:21,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-02-06 18:47:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219174304] [2025-02-06 18:47:21,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:21,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-02-06 18:47:21,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:21,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-02-06 18:47:21,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-02-06 18:47:21,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 90 [2025-02-06 18:47:21,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 184 transitions, 1566 flow. Second operand has 63 states, 63 states have (on average 39.61904761904762) internal successors, (2496), 63 states have internal predecessors, (2496), 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) [2025-02-06 18:47:21,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:21,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 90 [2025-02-06 18:47:21,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:24,544 INFO L124 PetriNetUnfolderBase]: 122/983 cut-off events. [2025-02-06 18:47:24,544 INFO L125 PetriNetUnfolderBase]: For 9666/9666 co-relation queries the response was YES. [2025-02-06 18:47:24,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3709 conditions, 983 events. 122/983 cut-off events. For 9666/9666 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2495 event pairs, 100 based on Foata normal form. 45/950 useless extension candidates. Maximal degree in co-relation 3042. Up to 255 conditions per place. [2025-02-06 18:47:24,549 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 202 selfloop transitions, 183 changer transitions 0/423 dead transitions. [2025-02-06 18:47:24,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 423 transitions, 5410 flow [2025-02-06 18:47:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-02-06 18:47:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-02-06 18:47:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2516 transitions. [2025-02-06 18:47:24,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.458287795992714 [2025-02-06 18:47:24,553 INFO L175 Difference]: Start difference. First operand has 184 places, 184 transitions, 1566 flow. Second operand 61 states and 2516 transitions. [2025-02-06 18:47:24,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 423 transitions, 5410 flow [2025-02-06 18:47:24,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 423 transitions, 5338 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-06 18:47:24,582 INFO L231 Difference]: Finished difference. Result has 248 places, 277 transitions, 3236 flow [2025-02-06 18:47:24,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1494, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3236, PETRI_PLACES=248, PETRI_TRANSITIONS=277} [2025-02-06 18:47:24,584 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 171 predicate places. [2025-02-06 18:47:24,584 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 277 transitions, 3236 flow [2025-02-06 18:47:24,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 39.61904761904762) internal successors, (2496), 63 states have internal predecessors, (2496), 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) [2025-02-06 18:47:24,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:24,585 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:24,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:24,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 18:47:24,786 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)] === [2025-02-06 18:47:24,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:24,787 INFO L85 PathProgramCache]: Analyzing trace with hash 780247972, now seen corresponding path program 3 times [2025-02-06 18:47:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:24,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829104369] [2025-02-06 18:47:24,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:47:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:25,019 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-02-06 18:48:23,830 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) and asserted 163 of 163 statements. [2025-02-06 18:48:23,830 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2025-02-06 18:48:23,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 18:48:23,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363657045] [2025-02-06 18:48:23,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:48:23,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:23,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:23,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:48:23,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:48:24,329 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-02-06 18:48:24,374 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 163 statements. [2025-02-06 18:48:24,374 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 18:48:24,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:24,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:48:24,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:48:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2025-02-06 18:48:24,545 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:48:24,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:24,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829104369] [2025-02-06 18:48:24,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 18:48:24,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363657045] [2025-02-06 18:48:24,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363657045] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:24,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:24,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 18:48:24,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520136015] [2025-02-06 18:48:24,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:24,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:48:24,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:24,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:48:24,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:48:24,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 90 [2025-02-06 18:48:24,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 277 transitions, 3236 flow. Second operand has 8 states, 8 states have (on average 38.25) internal successors, (306), 8 states have internal predecessors, (306), 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) [2025-02-06 18:48:24,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:24,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 90 [2025-02-06 18:48:24,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:25,281 INFO L124 PetriNetUnfolderBase]: 122/923 cut-off events. [2025-02-06 18:48:25,281 INFO L125 PetriNetUnfolderBase]: For 7573/7573 co-relation queries the response was YES. [2025-02-06 18:48:25,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3689 conditions, 923 events. 122/923 cut-off events. For 7573/7573 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2262 event pairs, 100 based on Foata normal form. 60/905 useless extension candidates. Maximal degree in co-relation 3006. Up to 245 conditions per place. [2025-02-06 18:48:25,286 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 98 selfloop transitions, 129 changer transitions 0/275 dead transitions. [2025-02-06 18:48:25,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 275 transitions, 3680 flow [2025-02-06 18:48:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:48:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:48:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 417 transitions. [2025-02-06 18:48:25,288 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4633333333333333 [2025-02-06 18:48:25,288 INFO L175 Difference]: Start difference. First operand has 248 places, 277 transitions, 3236 flow. Second operand 10 states and 417 transitions. [2025-02-06 18:48:25,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 275 transitions, 3680 flow [2025-02-06 18:48:25,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 275 transitions, 3482 flow, removed 15 selfloop flow, removed 28 redundant places. [2025-02-06 18:48:25,326 INFO L231 Difference]: Finished difference. Result has 227 places, 275 transitions, 3286 flow [2025-02-06 18:48:25,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3028, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3286, PETRI_PLACES=227, PETRI_TRANSITIONS=275} [2025-02-06 18:48:25,327 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 150 predicate places. [2025-02-06 18:48:25,327 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 275 transitions, 3286 flow [2025-02-06 18:48:25,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.25) internal successors, (306), 8 states have internal predecessors, (306), 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) [2025-02-06 18:48:25,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:25,327 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-02-06 18:48:25,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 18:48:25,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:25,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:48:25,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:25,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1582115961, now seen corresponding path program 1 times [2025-02-06 18:48:25,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:25,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052702398] [2025-02-06 18:48:25,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:25,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:25,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes.