./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.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_27-funptr_racing.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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:45:20,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:45:20,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:45:20,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:45:20,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:45:20,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:45:20,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:45:20,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:45:20,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:45:20,121 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:45:20,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:45:20,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:45:20,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:45:20,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:45:20,122 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:45:20,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:45:20,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:45:20,122 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:45:20,123 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:45:20,124 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:45:20,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:45:20,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:45:20,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:45:20,125 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 -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2025-02-06 18:45:20,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:45:20,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:45:20,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:45:20,336 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:45:20,336 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:45:20,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2025-02-06 18:45:21,422 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3060d06e/a4be9eb9672d4972badb19fb746f9a8e/FLAG2095dd981 [2025-02-06 18:45:21,691 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:45:21,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2025-02-06 18:45:21,700 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3060d06e/a4be9eb9672d4972badb19fb746f9a8e/FLAG2095dd981 [2025-02-06 18:45:21,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3060d06e/a4be9eb9672d4972badb19fb746f9a8e [2025-02-06 18:45:21,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:45:21,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:45:21,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:45:21,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:45:21,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:45:21,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:45:21" (1/1) ... [2025-02-06 18:45:21,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685ba7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:21, skipping insertion in model container [2025-02-06 18:45:21,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:45:21" (1/1) ... [2025-02-06 18:45:21,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:45:22,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:45:22,076 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:45:22,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:45:22,163 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:45:22,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22 WrapperNode [2025-02-06 18:45:22,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:45:22,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:45:22,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:45:22,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:45:22,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,202 INFO L138 Inliner]: procedures = 252, calls = 53, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 174 [2025-02-06 18:45:22,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:45:22,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:45:22,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:45:22,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:45:22,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,221 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2025-02-06 18:45:22,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,226 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:45:22,234 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:45:22,234 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:45:22,234 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:45:22,235 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (1/1) ... [2025-02-06 18:45:22,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:45:22,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:45:22,259 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 18:45:22,265 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 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:45:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:45:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:45:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:45:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:45:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 18:45:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:45:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:45:22,281 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 18:45:22,412 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:45:22,414 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:45:22,575 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L911: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 18:45:22,576 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L911-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 18:45:22,679 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:45:22,679 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:45:22,811 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:45:22,812 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:45:22,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:45:22 BoogieIcfgContainer [2025-02-06 18:45:22,812 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:45:22,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:45:22,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:45:22,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:45:22,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:45:21" (1/3) ... [2025-02-06 18:45:22,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744e3abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:45:22, skipping insertion in model container [2025-02-06 18:45:22,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:22" (2/3) ... [2025-02-06 18:45:22,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744e3abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:45:22, skipping insertion in model container [2025-02-06 18:45:22,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:45:22" (3/3) ... [2025-02-06 18:45:22,821 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2025-02-06 18:45:22,831 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:45:22,832 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_27-funptr_racing.i that has 2 procedures, 87 locations, 1 initial locations, 9 loop locations, and 12 error locations. [2025-02-06 18:45:22,832 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:45:22,874 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 18:45:22,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 103 transitions, 213 flow [2025-02-06 18:45:22,934 INFO L124 PetriNetUnfolderBase]: 18/123 cut-off events. [2025-02-06 18:45:22,936 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:45:22,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 123 events. 18/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 438 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 94. Up to 4 conditions per place. [2025-02-06 18:45:22,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 103 transitions, 213 flow [2025-02-06 18:45:22,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 102 transitions, 211 flow [2025-02-06 18:45:22,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:45:22,959 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;@51cb39bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:45:22,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-02-06 18:45:22,966 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:45:22,966 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-02-06 18:45:22,967 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:45:22,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:22,967 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:45:22,968 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:45:22,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:22,972 INFO L85 PathProgramCache]: Analyzing trace with hash 435307932, now seen corresponding path program 1 times [2025-02-06 18:45:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:22,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705257899] [2025-02-06 18:45:22,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:22,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:23,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:45:23,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:45:23,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:23,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:23,227 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 18:45:23,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:23,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705257899] [2025-02-06 18:45:23,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705257899] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:23,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:23,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:45:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010114424] [2025-02-06 18:45:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:23,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:45:23,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:23,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:45:23,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:45:23,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 103 [2025-02-06 18:45:23,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 102 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 18:45:23,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:23,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 103 [2025-02-06 18:45:23,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:23,608 INFO L124 PetriNetUnfolderBase]: 419/1098 cut-off events. [2025-02-06 18:45:23,608 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:45:23,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 1098 events. 419/1098 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6757 event pairs, 13 based on Foata normal form. 275/1281 useless extension candidates. Maximal degree in co-relation 1927. Up to 785 conditions per place. [2025-02-06 18:45:23,618 INFO L140 encePairwiseOnDemand]: 83/103 looper letters, 97 selfloop transitions, 3 changer transitions 0/141 dead transitions. [2025-02-06 18:45:23,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 141 transitions, 489 flow [2025-02-06 18:45:23,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:45:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:45:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2025-02-06 18:45:23,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2025-02-06 18:45:23,630 INFO L175 Difference]: Start difference. First operand has 90 places, 102 transitions, 211 flow. Second operand 4 states and 305 transitions. [2025-02-06 18:45:23,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 141 transitions, 489 flow [2025-02-06 18:45:23,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 141 transitions, 489 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:45:23,641 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 189 flow [2025-02-06 18:45:23,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2025-02-06 18:45:23,647 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 2 predicate places. [2025-02-06 18:45:23,648 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 189 flow [2025-02-06 18:45:23,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 18:45:23,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:23,648 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:45:23,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:45:23,649 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:45:23,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1752691487, now seen corresponding path program 1 times [2025-02-06 18:45:23,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:23,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62420924] [2025-02-06 18:45:23,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:23,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:45:23,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:45:23,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:23,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:45:23,679 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:45:23,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:45:23,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:45:23,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:23,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:45:23,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:45:23,719 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 18:45:23,720 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2025-02-06 18:45:23,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2025-02-06 18:45:23,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2025-02-06 18:45:23,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:45:23,722 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 18:45:23,725 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 18:45:23,726 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 18:45:23,755 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:45:23,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 174 transitions, 364 flow [2025-02-06 18:45:23,778 INFO L124 PetriNetUnfolderBase]: 35/233 cut-off events. [2025-02-06 18:45:23,780 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 18:45:23,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 233 events. 35/233 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1066 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 172. Up to 6 conditions per place. [2025-02-06 18:45:23,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 174 transitions, 364 flow [2025-02-06 18:45:23,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 174 transitions, 364 flow [2025-02-06 18:45:23,787 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:45:23,787 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;@51cb39bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:45:23,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-02-06 18:45:23,789 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:45:23,790 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-06 18:45:23,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:45:23,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:23,790 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:45:23,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:23,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 601423311, now seen corresponding path program 1 times [2025-02-06 18:45:23,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:23,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446850143] [2025-02-06 18:45:23,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:23,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:23,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:45:23,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:45:23,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:23,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:23,882 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 18:45:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446850143] [2025-02-06 18:45:23,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446850143] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:23,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:23,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:45:23,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125668549] [2025-02-06 18:45:23,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:23,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:45:23,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:23,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:45:23,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:45:23,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-06 18:45:23,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 174 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 18:45:23,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:23,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-06 18:45:23,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:27,298 INFO L124 PetriNetUnfolderBase]: 27076/56202 cut-off events. [2025-02-06 18:45:27,298 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2025-02-06 18:45:27,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97626 conditions, 56202 events. 27076/56202 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 589252 event pairs, 12483 based on Foata normal form. 13529/64144 useless extension candidates. Maximal degree in co-relation 4363. Up to 41193 conditions per place. [2025-02-06 18:45:27,558 INFO L140 encePairwiseOnDemand]: 142/174 looper letters, 131 selfloop transitions, 3 changer transitions 0/205 dead transitions. [2025-02-06 18:45:27,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 205 transitions, 694 flow [2025-02-06 18:45:27,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:45:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:45:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 471 transitions. [2025-02-06 18:45:27,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6767241379310345 [2025-02-06 18:45:27,561 INFO L175 Difference]: Start difference. First operand has 149 places, 174 transitions, 364 flow. Second operand 4 states and 471 transitions. [2025-02-06 18:45:27,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 205 transitions, 694 flow [2025-02-06 18:45:27,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 205 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:45:27,566 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 336 flow [2025-02-06 18:45:27,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=336, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2025-02-06 18:45:27,567 INFO L279 CegarLoopForPetriNet]: 149 programPoint places, 5 predicate places. [2025-02-06 18:45:27,567 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 336 flow [2025-02-06 18:45:27,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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 18:45:27,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:27,567 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:45:27,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:45:27,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:27,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:27,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1128134852, now seen corresponding path program 1 times [2025-02-06 18:45:27,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419359844] [2025-02-06 18:45:27,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:27,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:27,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:45:27,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:45:27,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:27,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:27,682 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 18:45:27,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:27,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419359844] [2025-02-06 18:45:27,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419359844] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:27,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:27,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:45:27,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824065685] [2025-02-06 18:45:27,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:27,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:45:27,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:27,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:45:27,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:45:27,693 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-06 18:45:27,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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 18:45:27,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:27,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-06 18:45:27,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:30,517 INFO L124 PetriNetUnfolderBase]: 26321/47695 cut-off events. [2025-02-06 18:45:30,518 INFO L125 PetriNetUnfolderBase]: For 2491/2491 co-relation queries the response was YES. [2025-02-06 18:45:30,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91223 conditions, 47695 events. 26321/47695 cut-off events. For 2491/2491 co-relation queries the response was YES. Maximal size of possible extension queue 1146. Compared 445146 event pairs, 1796 based on Foata normal form. 784/44954 useless extension candidates. Maximal degree in co-relation 4198. Up to 29182 conditions per place. [2025-02-06 18:45:30,808 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 235 selfloop transitions, 6 changer transitions 0/312 dead transitions. [2025-02-06 18:45:30,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 312 transitions, 1140 flow [2025-02-06 18:45:30,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:45:30,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:45:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2025-02-06 18:45:30,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6398467432950191 [2025-02-06 18:45:30,810 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 336 flow. Second operand 6 states and 668 transitions. [2025-02-06 18:45:30,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 312 transitions, 1140 flow [2025-02-06 18:45:30,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 312 transitions, 1138 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:45:30,819 INFO L231 Difference]: Finished difference. Result has 157 places, 149 transitions, 342 flow [2025-02-06 18:45:30,821 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=157, PETRI_TRANSITIONS=149} [2025-02-06 18:45:30,821 INFO L279 CegarLoopForPetriNet]: 149 programPoint places, 8 predicate places. [2025-02-06 18:45:30,822 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 149 transitions, 342 flow [2025-02-06 18:45:30,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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 18:45:30,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:30,823 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:45:30,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:45:30,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:30,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:30,823 INFO L85 PathProgramCache]: Analyzing trace with hash -612441514, now seen corresponding path program 1 times [2025-02-06 18:45:30,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:30,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744479518] [2025-02-06 18:45:30,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:30,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:30,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:45:30,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:45:30,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:30,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:30,875 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 18:45:30,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:30,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744479518] [2025-02-06 18:45:30,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744479518] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:30,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:30,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:45:30,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803706897] [2025-02-06 18:45:30,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:30,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:45:30,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:30,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:45:30,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:45:30,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-06 18:45:30,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 149 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 18:45:30,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:30,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-06 18:45:30,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:33,338 INFO L124 PetriNetUnfolderBase]: 24038/48783 cut-off events. [2025-02-06 18:45:33,339 INFO L125 PetriNetUnfolderBase]: For 7081/7081 co-relation queries the response was YES. [2025-02-06 18:45:33,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90384 conditions, 48783 events. 24038/48783 cut-off events. For 7081/7081 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 487620 event pairs, 7279 based on Foata normal form. 784/46267 useless extension candidates. Maximal degree in co-relation 35980. Up to 30528 conditions per place. [2025-02-06 18:45:33,502 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 180 selfloop transitions, 6 changer transitions 0/257 dead transitions. [2025-02-06 18:45:33,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 257 transitions, 928 flow [2025-02-06 18:45:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:45:33,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:45:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2025-02-06 18:45:33,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6738505747126436 [2025-02-06 18:45:33,503 INFO L175 Difference]: Start difference. First operand has 157 places, 149 transitions, 342 flow. Second operand 4 states and 469 transitions. [2025-02-06 18:45:33,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 257 transitions, 928 flow [2025-02-06 18:45:33,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 257 transitions, 912 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-02-06 18:45:33,536 INFO L231 Difference]: Finished difference. Result has 155 places, 149 transitions, 342 flow [2025-02-06 18:45:33,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=342, PETRI_PLACES=155, PETRI_TRANSITIONS=149} [2025-02-06 18:45:33,537 INFO L279 CegarLoopForPetriNet]: 149 programPoint places, 6 predicate places. [2025-02-06 18:45:33,537 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 149 transitions, 342 flow [2025-02-06 18:45:33,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 18:45:33,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:33,537 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 18:45:33,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:45:33,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:33,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -145755982, now seen corresponding path program 1 times [2025-02-06 18:45:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284093876] [2025-02-06 18:45:33,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:33,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:45:33,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:45:33,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:33,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:45:33,555 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:45:33,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:45:33,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:45:33,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:33,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:45:33,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:45:33,571 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2025-02-06 18:45:33,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2025-02-06 18:45:33,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2025-02-06 18:45:33,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2025-02-06 18:45:33,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2025-02-06 18:45:33,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2025-02-06 18:45:33,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2025-02-06 18:45:33,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2025-02-06 18:45:33,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2025-02-06 18:45:33,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:45:33,573 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 18:45:33,573 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 18:45:33,574 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 18:45:33,605 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:45:33,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 245 transitions, 517 flow [2025-02-06 18:45:33,627 INFO L124 PetriNetUnfolderBase]: 55/362 cut-off events. [2025-02-06 18:45:33,628 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-02-06 18:45:33,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 362 events. 55/362 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1825 event pairs, 1 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 261. Up to 12 conditions per place. [2025-02-06 18:45:33,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 245 transitions, 517 flow [2025-02-06 18:45:33,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 245 transitions, 517 flow [2025-02-06 18:45:33,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:45:33,637 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;@51cb39bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:45:33,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-02-06 18:45:33,638 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:45:33,638 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-02-06 18:45:33,638 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:45:33,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:33,638 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:45:33,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2025-02-06 18:45:33,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:33,638 INFO L85 PathProgramCache]: Analyzing trace with hash 835294345, now seen corresponding path program 1 times [2025-02-06 18:45:33,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:33,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754555056] [2025-02-06 18:45:33,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:33,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:33,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:45:33,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:45:33,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:33,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:33,675 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 18:45:33,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:33,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754555056] [2025-02-06 18:45:33,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754555056] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:33,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:33,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:45:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742051046] [2025-02-06 18:45:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:33,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:45:33,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:33,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:45:33,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:45:33,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 245 [2025-02-06 18:45:33,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 245 transitions, 517 flow. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 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 18:45:33,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:33,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 245 [2025-02-06 18:45:33,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand