./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.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_07-cond_racing2.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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:44:33,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:44:33,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:44:33,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:44:33,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:44:33,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:44:33,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:44:33,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:44:33,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:44:33,516 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:44:33,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:44:33,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:44:33,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:44:33,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:44:33,517 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:44:33,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:44:33,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:44:33,519 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:44:33,519 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:44:33,519 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:44:33,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:44:33,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:44:33,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:44:33,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:44:33,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:44:33,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:44:33,520 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 -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2025-02-06 18:44:33,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:44:33,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:44:33,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:44:33,815 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:44:33,815 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:44:33,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2025-02-06 18:44:35,011 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc757b68a/ce2df2b4358a4f58a24eb4f4aee21247/FLAGf646437e6 [2025-02-06 18:44:35,286 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:44:35,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2025-02-06 18:44:35,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc757b68a/ce2df2b4358a4f58a24eb4f4aee21247/FLAGf646437e6 [2025-02-06 18:44:35,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc757b68a/ce2df2b4358a4f58a24eb4f4aee21247 [2025-02-06 18:44:35,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:44:35,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:44:35,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:44:35,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:44:35,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:44:35,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd28bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35, skipping insertion in model container [2025-02-06 18:44:35,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:44:35,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:44:35,633 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:44:35,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:44:35,706 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:44:35,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35 WrapperNode [2025-02-06 18:44:35,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:44:35,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:44:35,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:44:35,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:44:35,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,746 INFO L138 Inliner]: procedures = 271, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 143 [2025-02-06 18:44:35,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:44:35,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:44:35,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:44:35,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:44:35,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,764 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2025-02-06 18:44:35,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,770 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:44:35,774 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:44:35,775 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:44:35,775 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:44:35,775 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (1/1) ... [2025-02-06 18:44:35,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:44:35,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:44:35,806 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 18:44:35,815 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 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:44:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:44:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:44:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:44:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:44:35,832 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 18:44:35,960 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:44:35,962 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:44:36,101 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L945: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 18:44:36,102 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L945-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 18:44:36,134 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:44:36,135 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:44:36,297 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:44:36,297 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:44:36,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:44:36 BoogieIcfgContainer [2025-02-06 18:44:36,298 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:44:36,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:44:36,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:44:36,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:44:36,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:44:35" (1/3) ... [2025-02-06 18:44:36,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7d0796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:44:36, skipping insertion in model container [2025-02-06 18:44:36,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:44:35" (2/3) ... [2025-02-06 18:44:36,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7d0796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:44:36, skipping insertion in model container [2025-02-06 18:44:36,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:44:36" (3/3) ... [2025-02-06 18:44:36,304 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2025-02-06 18:44:36,316 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:44:36,317 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_07-cond_racing2.i that has 2 procedures, 62 locations, 1 initial locations, 6 loop locations, and 10 error locations. [2025-02-06 18:44:36,317 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:44:36,355 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 18:44:36,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 74 transitions, 155 flow [2025-02-06 18:44:36,404 INFO L124 PetriNetUnfolderBase]: 17/101 cut-off events. [2025-02-06 18:44:36,405 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:44:36,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 17/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 327 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2025-02-06 18:44:36,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 74 transitions, 155 flow [2025-02-06 18:44:36,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 73 transitions, 153 flow [2025-02-06 18:44:36,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:44:36,433 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;@75c86e6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:44:36,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-06 18:44:36,438 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:44:36,438 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2025-02-06 18:44:36,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:44:36,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:36,439 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:44:36,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:44:36,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:36,443 INFO L85 PathProgramCache]: Analyzing trace with hash 430531717, now seen corresponding path program 1 times [2025-02-06 18:44:36,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:36,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241631113] [2025-02-06 18:44:36,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:36,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:36,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:44:36,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:44:36,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:36,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:36,688 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 18:44:36,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:36,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241631113] [2025-02-06 18:44:36,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241631113] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:36,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:36,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:44:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475507573] [2025-02-06 18:44:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:36,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:44:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:36,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:44:36,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:44:36,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 74 [2025-02-06 18:44:36,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 73 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 18:44:36,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:36,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 74 [2025-02-06 18:44:36,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:36,898 INFO L124 PetriNetUnfolderBase]: 157/506 cut-off events. [2025-02-06 18:44:36,898 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:44:36,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 506 events. 157/506 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2737 event pairs, 0 based on Foata normal form. 108/521 useless extension candidates. Maximal degree in co-relation 774. Up to 256 conditions per place. [2025-02-06 18:44:36,902 INFO L140 encePairwiseOnDemand]: 60/74 looper letters, 47 selfloop transitions, 3 changer transitions 0/86 dead transitions. [2025-02-06 18:44:36,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 279 flow [2025-02-06 18:44:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:44:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:44:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2025-02-06 18:44:36,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7331081081081081 [2025-02-06 18:44:36,911 INFO L175 Difference]: Start difference. First operand has 65 places, 73 transitions, 153 flow. Second operand 4 states and 217 transitions. [2025-02-06 18:44:36,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 279 flow [2025-02-06 18:44:36,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 86 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:44:36,916 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 143 flow [2025-02-06 18:44:36,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2025-02-06 18:44:36,919 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2025-02-06 18:44:36,920 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 143 flow [2025-02-06 18:44:36,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 18:44:36,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:36,920 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:36,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:44:36,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2025-02-06 18:44:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:36,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1198391986, now seen corresponding path program 1 times [2025-02-06 18:44:36,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:36,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141282132] [2025-02-06 18:44:36,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:36,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:36,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:44:36,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:44:36,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:36,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:44:36,954 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:44:36,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:44:36,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:44:36,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:36,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:44:36,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:44:36,980 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 18:44:36,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2025-02-06 18:44:36,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-06 18:44:36,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-06 18:44:36,982 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-06 18:44:36,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-06 18:44:36,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:44:36,984 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 18:44:36,989 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 18:44:36,989 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 18:44:37,011 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:44:37,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 109 transitions, 234 flow [2025-02-06 18:44:37,026 INFO L124 PetriNetUnfolderBase]: 30/182 cut-off events. [2025-02-06 18:44:37,026 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 18:44:37,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 182 events. 30/182 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 723 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 109. Up to 9 conditions per place. [2025-02-06 18:44:37,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 109 transitions, 234 flow [2025-02-06 18:44:37,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 109 transitions, 234 flow [2025-02-06 18:44:37,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:44:37,030 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;@75c86e6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:44:37,030 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-02-06 18:44:37,032 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:44:37,032 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2025-02-06 18:44:37,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:44:37,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:37,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:44:37,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:44:37,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:37,032 INFO L85 PathProgramCache]: Analyzing trace with hash 534582675, now seen corresponding path program 1 times [2025-02-06 18:44:37,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:37,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108917793] [2025-02-06 18:44:37,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:37,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:37,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:44:37,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:44:37,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:37,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:37,171 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 18:44:37,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:37,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108917793] [2025-02-06 18:44:37,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108917793] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:37,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:44:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327044230] [2025-02-06 18:44:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:37,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:44:37,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:37,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:44:37,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:44:37,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 109 [2025-02-06 18:44:37,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 109 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 18:44:37,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:37,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 109 [2025-02-06 18:44:37,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:38,037 INFO L124 PetriNetUnfolderBase]: 4719/10265 cut-off events. [2025-02-06 18:44:38,037 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2025-02-06 18:44:38,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17446 conditions, 10265 events. 4719/10265 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 90205 event pairs, 1952 based on Foata normal form. 2596/11547 useless extension candidates. Maximal degree in co-relation 1393. Up to 7077 conditions per place. [2025-02-06 18:44:38,095 INFO L140 encePairwiseOnDemand]: 89/109 looper letters, 65 selfloop transitions, 3 changer transitions 0/120 dead transitions. [2025-02-06 18:44:38,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 120 transitions, 392 flow [2025-02-06 18:44:38,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:44:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:44:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2025-02-06 18:44:38,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6995412844036697 [2025-02-06 18:44:38,100 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 234 flow. Second operand 4 states and 305 transitions. [2025-02-06 18:44:38,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 120 transitions, 392 flow [2025-02-06 18:44:38,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 120 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:44:38,104 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 230 flow [2025-02-06 18:44:38,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2025-02-06 18:44:38,104 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, 5 predicate places. [2025-02-06 18:44:38,104 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 230 flow [2025-02-06 18:44:38,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 18:44:38,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:38,105 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:38,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:44:38,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:44:38,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash 763547330, now seen corresponding path program 1 times [2025-02-06 18:44:38,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:38,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065620498] [2025-02-06 18:44:38,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:38,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:38,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:44:38,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:44:38,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:38,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:38,260 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 18:44:38,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065620498] [2025-02-06 18:44:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065620498] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:38,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:38,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:44:38,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117368501] [2025-02-06 18:44:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:38,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:44:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:38,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:44:38,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:44:38,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 109 [2025-02-06 18:44:38,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 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 18:44:38,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:38,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 109 [2025-02-06 18:44:38,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:39,147 INFO L124 PetriNetUnfolderBase]: 3957/9025 cut-off events. [2025-02-06 18:44:39,147 INFO L125 PetriNetUnfolderBase]: For 624/624 co-relation queries the response was YES. [2025-02-06 18:44:39,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15616 conditions, 9025 events. 3957/9025 cut-off events. For 624/624 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 79504 event pairs, 252 based on Foata normal form. 144/7877 useless extension candidates. Maximal degree in co-relation 1295. Up to 3893 conditions per place. [2025-02-06 18:44:39,191 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 105 selfloop transitions, 6 changer transitions 0/163 dead transitions. [2025-02-06 18:44:39,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 163 transitions, 582 flow [2025-02-06 18:44:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:44:39,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:44:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2025-02-06 18:44:39,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6483180428134556 [2025-02-06 18:44:39,193 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 230 flow. Second operand 6 states and 424 transitions. [2025-02-06 18:44:39,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 163 transitions, 582 flow [2025-02-06 18:44:39,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 163 transitions, 580 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:44:39,199 INFO L231 Difference]: Finished difference. Result has 103 places, 96 transitions, 236 flow [2025-02-06 18:44:39,199 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=103, PETRI_TRANSITIONS=96} [2025-02-06 18:44:39,200 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, 8 predicate places. [2025-02-06 18:44:39,201 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 96 transitions, 236 flow [2025-02-06 18:44:39,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 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 18:44:39,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:39,201 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:39,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:44:39,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:44:39,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:39,204 INFO L85 PathProgramCache]: Analyzing trace with hash 763464528, now seen corresponding path program 1 times [2025-02-06 18:44:39,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:39,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980566792] [2025-02-06 18:44:39,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:39,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:39,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:44:39,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:44:39,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:39,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:39,291 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 18:44:39,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:39,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980566792] [2025-02-06 18:44:39,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980566792] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:39,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:39,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:44:39,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642935899] [2025-02-06 18:44:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:39,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:44:39,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:39,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:44:39,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:44:39,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 109 [2025-02-06 18:44:39,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 96 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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 18:44:39,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:39,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 109 [2025-02-06 18:44:39,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:39,861 INFO L124 PetriNetUnfolderBase]: 3854/8567 cut-off events. [2025-02-06 18:44:39,864 INFO L125 PetriNetUnfolderBase]: For 1341/1341 co-relation queries the response was YES. [2025-02-06 18:44:39,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15440 conditions, 8567 events. 3854/8567 cut-off events. For 1341/1341 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 73624 event pairs, 635 based on Foata normal form. 12/7490 useless extension candidates. Maximal degree in co-relation 13459. Up to 4558 conditions per place. [2025-02-06 18:44:39,896 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 86 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2025-02-06 18:44:39,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 508 flow [2025-02-06 18:44:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:44:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:44:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2025-02-06 18:44:39,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6440366972477064 [2025-02-06 18:44:39,898 INFO L175 Difference]: Start difference. First operand has 103 places, 96 transitions, 236 flow. Second operand 5 states and 351 transitions. [2025-02-06 18:44:39,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 508 flow [2025-02-06 18:44:39,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 142 transitions, 496 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-06 18:44:39,906 INFO L231 Difference]: Finished difference. Result has 104 places, 96 transitions, 236 flow [2025-02-06 18:44:39,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=104, PETRI_TRANSITIONS=96} [2025-02-06 18:44:39,907 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, 9 predicate places. [2025-02-06 18:44:39,907 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 96 transitions, 236 flow [2025-02-06 18:44:39,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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 18:44:39,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:39,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:39,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:44:39,908 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:44:39,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:39,908 INFO L85 PathProgramCache]: Analyzing trace with hash 364663631, now seen corresponding path program 1 times [2025-02-06 18:44:39,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:39,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206158487] [2025-02-06 18:44:39,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:39,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:39,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:44:39,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:44:39,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:39,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:39,960 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 18:44:39,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:39,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206158487] [2025-02-06 18:44:39,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206158487] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:39,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:39,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:44:39,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934424596] [2025-02-06 18:44:39,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:39,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:44:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:39,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:44:39,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:44:39,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 109 [2025-02-06 18:44:39,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 96 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 18:44:39,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:39,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 109 [2025-02-06 18:44:39,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:40,877 INFO L124 PetriNetUnfolderBase]: 6093/12600 cut-off events. [2025-02-06 18:44:40,877 INFO L125 PetriNetUnfolderBase]: For 1677/1838 co-relation queries the response was YES. [2025-02-06 18:44:40,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22869 conditions, 12600 events. 6093/12600 cut-off events. For 1677/1838 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 110235 event pairs, 1497 based on Foata normal form. 215/11468 useless extension candidates. Maximal degree in co-relation 19055. Up to 6273 conditions per place. [2025-02-06 18:44:40,931 INFO L140 encePairwiseOnDemand]: 100/109 looper letters, 122 selfloop transitions, 12 changer transitions 0/187 dead transitions. [2025-02-06 18:44:40,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 187 transitions, 750 flow [2025-02-06 18:44:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:44:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:44:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 400 transitions. [2025-02-06 18:44:40,934 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7339449541284404 [2025-02-06 18:44:40,934 INFO L175 Difference]: Start difference. First operand has 104 places, 96 transitions, 236 flow. Second operand 5 states and 400 transitions. [2025-02-06 18:44:40,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 187 transitions, 750 flow [2025-02-06 18:44:40,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 187 transitions, 732 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:44:40,940 INFO L231 Difference]: Finished difference. Result has 108 places, 107 transitions, 322 flow [2025-02-06 18:44:40,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=322, PETRI_PLACES=108, PETRI_TRANSITIONS=107} [2025-02-06 18:44:40,941 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, 13 predicate places. [2025-02-06 18:44:40,941 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 107 transitions, 322 flow [2025-02-06 18:44:40,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 18:44:40,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:40,942 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:44:40,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:44:40,942 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:44:40,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:40,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2099836081, now seen corresponding path program 1 times [2025-02-06 18:44:40,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:40,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637575160] [2025-02-06 18:44:40,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:40,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:40,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:44:40,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:44:40,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:40,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:41,022 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 18:44:41,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:41,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637575160] [2025-02-06 18:44:41,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637575160] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:41,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:41,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:44:41,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653207086] [2025-02-06 18:44:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:41,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:44:41,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:41,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:44:41,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:44:41,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 109 [2025-02-06 18:44:41,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 107 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:41,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:41,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 109 [2025-02-06 18:44:41,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:41,890 INFO L124 PetriNetUnfolderBase]: 5231/11894 cut-off events. [2025-02-06 18:44:41,891 INFO L125 PetriNetUnfolderBase]: For 3617/3622 co-relation queries the response was YES. [2025-02-06 18:44:41,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23243 conditions, 11894 events. 5231/11894 cut-off events. For 3617/3622 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 108487 event pairs, 553 based on Foata normal form. 160/10571 useless extension candidates. Maximal degree in co-relation 20086. Up to 6842 conditions per place. [2025-02-06 18:44:41,935 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 103 selfloop transitions, 6 changer transitions 0/161 dead transitions. [2025-02-06 18:44:41,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 161 transitions, 710 flow [2025-02-06 18:44:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:44:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:44:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2025-02-06 18:44:41,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676605504587156 [2025-02-06 18:44:41,937 INFO L175 Difference]: Start difference. First operand has 108 places, 107 transitions, 322 flow. Second operand 4 states and 295 transitions. [2025-02-06 18:44:41,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 161 transitions, 710 flow [2025-02-06 18:44:41,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 161 transitions, 706 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 18:44:41,943 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 334 flow [2025-02-06 18:44:41,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=334, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2025-02-06 18:44:41,944 INFO L279 CegarLoopForPetriNet]: 95 programPoint places, 15 predicate places. [2025-02-06 18:44:41,944 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 334 flow [2025-02-06 18:44:41,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:44:41,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:41,945 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 18:44:41,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:44:41,945 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-06 18:44:41,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:41,945 INFO L85 PathProgramCache]: Analyzing trace with hash 692173379, now seen corresponding path program 1 times [2025-02-06 18:44:41,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:41,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180553387] [2025-02-06 18:44:41,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:41,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:41,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:44:41,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:44:41,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:41,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:44:41,968 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:44:41,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:44:41,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:44:41,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:41,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:44:41,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:44:41,985 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 18:44:41,985 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2025-02-06 18:44:41,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2025-02-06 18:44:41,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2025-02-06 18:44:41,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2025-02-06 18:44:41,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2025-02-06 18:44:41,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:44:41,987 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-06 18:44:41,987 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 18:44:41,987 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 18:44:42,006 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:44:42,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 144 transitions, 315 flow [2025-02-06 18:44:42,018 INFO L124 PetriNetUnfolderBase]: 46/282 cut-off events. [2025-02-06 18:44:42,018 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-02-06 18:44:42,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 282 events. 46/282 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1223 event pairs, 1 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 197. Up to 12 conditions per place. [2025-02-06 18:44:42,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 144 transitions, 315 flow [2025-02-06 18:44:42,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 144 transitions, 315 flow [2025-02-06 18:44:42,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:44:42,022 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;@75c86e6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:44:42,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-06 18:44:42,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:44:42,024 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2025-02-06 18:44:42,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:44:42,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:42,024 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:44:42,024 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:44:42,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash 672034308, now seen corresponding path program 1 times [2025-02-06 18:44:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:42,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685323952] [2025-02-06 18:44:42,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:42,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:42,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:44:42,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:44:42,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:42,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:42,066 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 18:44:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685323952] [2025-02-06 18:44:42,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685323952] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:42,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:42,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:44:42,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108251800] [2025-02-06 18:44:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:42,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:44:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:42,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:44:42,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:44:42,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 144 [2025-02-06 18:44:42,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 144 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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 18:44:42,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:42,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 144 [2025-02-06 18:44:42,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:50,849 INFO L124 PetriNetUnfolderBase]: 87851/157657 cut-off events. [2025-02-06 18:44:50,849 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2025-02-06 18:44:51,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277780 conditions, 157657 events. 87851/157657 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 3758. Compared 1683540 event pairs, 52468 based on Foata normal form. 47116/188499 useless extension candidates. Maximal degree in co-relation 18157. Up to 118961 conditions per place. [2025-02-06 18:44:51,692 INFO L140 encePairwiseOnDemand]: 118/144 looper letters, 78 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2025-02-06 18:44:51,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 149 transitions, 487 flow [2025-02-06 18:44:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:44:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:44:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2025-02-06 18:44:51,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2025-02-06 18:44:51,694 INFO L175 Difference]: Start difference. First operand has 125 places, 144 transitions, 315 flow. Second operand 4 states and 388 transitions. [2025-02-06 18:44:51,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 149 transitions, 487 flow [2025-02-06 18:44:51,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 149 transitions, 487 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:44:51,697 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 299 flow [2025-02-06 18:44:51,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2025-02-06 18:44:51,698 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 5 predicate places. [2025-02-06 18:44:51,698 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 299 flow [2025-02-06 18:44:51,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 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 18:44:51,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:51,699 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:51,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:44:51,699 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:44:51,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1888653982, now seen corresponding path program 1 times [2025-02-06 18:44:51,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:51,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528520618] [2025-02-06 18:44:51,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:51,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:51,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:44:51,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:44:51,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:51,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:51,759 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 18:44:51,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:51,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528520618] [2025-02-06 18:44:51,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528520618] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:51,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:51,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:44:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184415937] [2025-02-06 18:44:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:51,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:44:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:51,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:44:51,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:44:51,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 144 [2025-02-06 18:44:51,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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 18:44:51,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:51,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 144 [2025-02-06 18:44:51,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:59,644 INFO L124 PetriNetUnfolderBase]: 80034/141597 cut-off events. [2025-02-06 18:44:59,644 INFO L125 PetriNetUnfolderBase]: For 7512/7512 co-relation queries the response was YES. [2025-02-06 18:45:00,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258174 conditions, 141597 events. 80034/141597 cut-off events. For 7512/7512 co-relation queries the response was YES. Maximal size of possible extension queue 3234. Compared 1472072 event pairs, 24442 based on Foata normal form. 1872/129999 useless extension candidates. Maximal degree in co-relation 238245. Up to 75093 conditions per place. [2025-02-06 18:45:00,427 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 140 selfloop transitions, 6 changer transitions 0/214 dead transitions. [2025-02-06 18:45:00,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 214 transitions, 765 flow [2025-02-06 18:45:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:45:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:45:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2025-02-06 18:45:00,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6423611111111112 [2025-02-06 18:45:00,429 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 299 flow. Second operand 6 states and 555 transitions. [2025-02-06 18:45:00,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 214 transitions, 765 flow [2025-02-06 18:45:00,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 214 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:45:00,439 INFO L231 Difference]: Finished difference. Result has 133 places, 125 transitions, 305 flow [2025-02-06 18:45:00,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=133, PETRI_TRANSITIONS=125} [2025-02-06 18:45:00,439 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 8 predicate places. [2025-02-06 18:45:00,439 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 125 transitions, 305 flow [2025-02-06 18:45:00,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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 18:45:00,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:00,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:45:00,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:45:00,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:45:00,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1888768497, now seen corresponding path program 1 times [2025-02-06 18:45:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917198820] [2025-02-06 18:45:00,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:00,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:00,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:45:00,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:45:00,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:00,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:00,493 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 18:45:00,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:00,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917198820] [2025-02-06 18:45:00,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917198820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:00,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:00,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:45:00,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121674527] [2025-02-06 18:45:00,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:00,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:45:00,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:00,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:45:00,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:45:00,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 144 [2025-02-06 18:45:00,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 125 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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 18:45:00,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:00,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 144 [2025-02-06 18:45:00,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:09,218 INFO L124 PetriNetUnfolderBase]: 83360/148522 cut-off events. [2025-02-06 18:45:09,219 INFO L125 PetriNetUnfolderBase]: For 20312/20312 co-relation queries the response was YES. [2025-02-06 18:45:09,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275547 conditions, 148522 events. 83360/148522 cut-off events. For 20312/20312 co-relation queries the response was YES. Maximal size of possible extension queue 3558. Compared 1560942 event pairs, 46945 based on Foata normal form. 12/137548 useless extension candidates. Maximal degree in co-relation 19729. Up to 111556 conditions per place. [2025-02-06 18:45:10,212 INFO L140 encePairwiseOnDemand]: 140/144 looper letters, 102 selfloop transitions, 4 changer transitions 0/174 dead transitions. [2025-02-06 18:45:10,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 174 transitions, 625 flow [2025-02-06 18:45:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:45:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:45:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 447 transitions. [2025-02-06 18:45:10,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6208333333333333 [2025-02-06 18:45:10,214 INFO L175 Difference]: Start difference. First operand has 133 places, 125 transitions, 305 flow. Second operand 5 states and 447 transitions. [2025-02-06 18:45:10,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 174 transitions, 625 flow [2025-02-06 18:45:10,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 174 transitions, 611 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-06 18:45:10,222 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 313 flow [2025-02-06 18:45:10,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=313, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2025-02-06 18:45:10,223 INFO L279 CegarLoopForPetriNet]: 125 programPoint places, 9 predicate places. [2025-02-06 18:45:10,223 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 313 flow [2025-02-06 18:45:10,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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 18:45:10,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:10,224 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:45:10,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:45:10,224 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-06 18:45:10,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:10,224 INFO L85 PathProgramCache]: Analyzing trace with hash -790607360, now seen corresponding path program 1 times [2025-02-06 18:45:10,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:10,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980040732] [2025-02-06 18:45:10,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:10,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:10,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:45:10,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:45:10,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:10,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:10,283 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 18:45:10,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:10,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980040732] [2025-02-06 18:45:10,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980040732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:10,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:10,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:45:10,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196924727] [2025-02-06 18:45:10,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:10,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:45:10,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:10,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:45:10,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:45:10,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 144 [2025-02-06 18:45:10,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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 18:45:10,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:10,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 144 [2025-02-06 18:45:10,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand