./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:35:44,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:35:44,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:35:44,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:35:44,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:35:44,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:35:44,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:35:44,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:35:44,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:35:44,542 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:35:44,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:35:44,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:35:44,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:35:44,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:35:44,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:35:44,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:35:44,545 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:35:44,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:35:44,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:35:44,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:35:44,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:35:44,547 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2025-03-09 06:35:44,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:35:44,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:35:44,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:35:44,775 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:35:44,775 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:35:44,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2025-03-09 06:35:45,891 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57395805/d44abdc983ce43bd8a295572fce12d13/FLAGc925cb7dc [2025-03-09 06:35:46,161 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:35:46,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2025-03-09 06:35:46,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57395805/d44abdc983ce43bd8a295572fce12d13/FLAGc925cb7dc [2025-03-09 06:35:46,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f57395805/d44abdc983ce43bd8a295572fce12d13 [2025-03-09 06:35:46,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:35:46,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:35:46,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:35:46,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:35:46,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:35:46,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cc897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46, skipping insertion in model container [2025-03-09 06:35:46,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:35:46,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:35:46,710 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:35:46,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:35:46,777 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:35:46,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46 WrapperNode [2025-03-09 06:35:46,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:35:46,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:35:46,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:35:46,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:35:46,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,805 INFO L138 Inliner]: procedures = 171, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2025-03-09 06:35:46,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:35:46,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:35:46,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:35:46,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:35:46,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,824 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 5, 6, 5, 5]. 26 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 1, 5, 5]. The 2 writes are split as follows [0, 0, 2, 0, 0]. [2025-03-09 06:35:46,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,828 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:35:46,832 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:35:46,832 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:35:46,832 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:35:46,833 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (1/1) ... [2025-03-09 06:35:46,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:35:46,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:35:46,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:35:46,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:35:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-09 06:35:46,874 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:35:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:35:46,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:35:46,875 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:35:46,988 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:35:46,991 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:35:47,139 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L708: havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-09 06:35:47,140 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L708-1: SUMMARY for call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset); srcloc: null [2025-03-09 06:35:47,197 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:35:47,198 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:35:47,333 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:35:47,334 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:35:47,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:35:47 BoogieIcfgContainer [2025-03-09 06:35:47,335 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:35:47,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:35:47,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:35:47,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:35:47,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:35:46" (1/3) ... [2025-03-09 06:35:47,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dae61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:35:47, skipping insertion in model container [2025-03-09 06:35:47,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:46" (2/3) ... [2025-03-09 06:35:47,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dae61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:35:47, skipping insertion in model container [2025-03-09 06:35:47,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:35:47" (3/3) ... [2025-03-09 06:35:47,342 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2025-03-09 06:35:47,353 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:35:47,356 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_45-escape_racing.i that has 2 procedures, 40 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-09 06:35:47,356 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:35:47,393 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-09 06:35:47,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 47 transitions, 101 flow [2025-03-09 06:35:47,452 INFO L124 PetriNetUnfolderBase]: 8/46 cut-off events. [2025-03-09 06:35:47,455 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:35:47,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 46 events. 8/46 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 119 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 42. Up to 3 conditions per place. [2025-03-09 06:35:47,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 47 transitions, 101 flow [2025-03-09 06:35:47,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 44 transitions, 91 flow [2025-03-09 06:35:47,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:35:47,476 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;@443fdbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:35:47,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-09 06:35:47,488 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:35:47,489 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2025-03-09 06:35:47,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:35:47,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:35:47,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:35:47,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-09 06:35:47,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:35:47,495 INFO L85 PathProgramCache]: Analyzing trace with hash 460395261, now seen corresponding path program 1 times [2025-03-09 06:35:47,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:35:47,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183246131] [2025-03-09 06:35:47,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:35:47,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:35:47,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:35:47,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:35:47,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:35:47,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:35:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:35:47,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:35:47,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183246131] [2025-03-09 06:35:47,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183246131] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:35:47,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:35:47,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:35:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186332033] [2025-03-09 06:35:47,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:35:47,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:35:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:35:47,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:35:47,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:35:47,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2025-03-09 06:35:47,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 44 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:35:47,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:35:47,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2025-03-09 06:35:47,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:35:48,136 INFO L124 PetriNetUnfolderBase]: 85/299 cut-off events. [2025-03-09 06:35:48,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:35:48,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 299 events. 85/299 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1381 event pairs, 0 based on Foata normal form. 57/347 useless extension candidates. Maximal degree in co-relation 496. Up to 100 conditions per place. [2025-03-09 06:35:48,141 INFO L140 encePairwiseOnDemand]: 30/47 looper letters, 33 selfloop transitions, 6 changer transitions 11/61 dead transitions. [2025-03-09 06:35:48,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 61 transitions, 219 flow [2025-03-09 06:35:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:35:48,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:35:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2025-03-09 06:35:48,157 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5602836879432624 [2025-03-09 06:35:48,158 INFO L175 Difference]: Start difference. First operand has 40 places, 44 transitions, 91 flow. Second operand 6 states and 158 transitions. [2025-03-09 06:35:48,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 61 transitions, 219 flow [2025-03-09 06:35:48,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:35:48,164 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 75 flow [2025-03-09 06:35:48,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2025-03-09 06:35:48,171 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2025-03-09 06:35:48,172 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 75 flow [2025-03-09 06:35:48,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:35:48,172 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:35:48,172 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:35:48,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:35:48,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-09 06:35:48,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:35:48,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1540532825, now seen corresponding path program 1 times [2025-03-09 06:35:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:35:48,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307062242] [2025-03-09 06:35:48,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:35:48,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:35:48,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:35:48,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:35:48,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:35:48,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:35:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:35:48,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:35:48,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307062242] [2025-03-09 06:35:48,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307062242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:35:48,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:35:48,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 06:35:48,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331468562] [2025-03-09 06:35:48,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:35:48,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 06:35:48,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:35:48,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 06:35:48,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:35:48,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2025-03-09 06:35:48,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 75 flow. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:35:48,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:35:48,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2025-03-09 06:35:48,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:35:48,707 INFO L124 PetriNetUnfolderBase]: 61/203 cut-off events. [2025-03-09 06:35:48,707 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-09 06:35:48,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 203 events. 61/203 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 850 event pairs, 8 based on Foata normal form. 10/213 useless extension candidates. Maximal degree in co-relation 382. Up to 39 conditions per place. [2025-03-09 06:35:48,709 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 40 selfloop transitions, 9 changer transitions 0/58 dead transitions. [2025-03-09 06:35:48,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 240 flow [2025-03-09 06:35:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:35:48,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:35:48,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 181 transitions. [2025-03-09 06:35:48,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3851063829787234 [2025-03-09 06:35:48,711 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 75 flow. Second operand 10 states and 181 transitions. [2025-03-09 06:35:48,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 240 flow [2025-03-09 06:35:48,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 58 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:35:48,712 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 88 flow [2025-03-09 06:35:48,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=88, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2025-03-09 06:35:48,713 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2025-03-09 06:35:48,713 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 88 flow [2025-03-09 06:35:48,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:35:48,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:35:48,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:35:48,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:35:48,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-09 06:35:48,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:35:48,714 INFO L85 PathProgramCache]: Analyzing trace with hash 511877579, now seen corresponding path program 1 times [2025-03-09 06:35:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:35:48,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902659195] [2025-03-09 06:35:48,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:35:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:35:48,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:35:48,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:35:48,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:35:48,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:35:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:35:48,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:35:48,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902659195] [2025-03-09 06:35:48,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902659195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:35:48,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:35:48,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 06:35:48,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607001566] [2025-03-09 06:35:48,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:35:48,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 06:35:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:35:48,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 06:35:48,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:35:48,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2025-03-09 06:35:48,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 88 flow. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:35:48,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:35:48,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2025-03-09 06:35:48,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:35:49,110 INFO L124 PetriNetUnfolderBase]: 53/185 cut-off events. [2025-03-09 06:35:49,111 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-09 06:35:49,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 185 events. 53/185 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 756 event pairs, 8 based on Foata normal form. 10/195 useless extension candidates. Maximal degree in co-relation 361. Up to 39 conditions per place. [2025-03-09 06:35:49,112 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2025-03-09 06:35:49,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 240 flow [2025-03-09 06:35:49,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:35:49,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:35:49,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2025-03-09 06:35:49,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38085106382978723 [2025-03-09 06:35:49,113 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 88 flow. Second operand 10 states and 179 transitions. [2025-03-09 06:35:49,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 240 flow [2025-03-09 06:35:49,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 56 transitions, 227 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-09 06:35:49,115 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2025-03-09 06:35:49,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2025-03-09 06:35:49,116 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2025-03-09 06:35:49,117 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2025-03-09 06:35:49,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:35:49,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2025-03-09 06:35:49,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-03-09 06:35:49,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-03-09 06:35:49,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-03-09 06:35:49,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2025-03-09 06:35:49,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-03-09 06:35:49,120 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-03-09 06:35:49,120 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-03-09 06:35:49,120 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-03-09 06:35:49,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:35:49,120 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-09 06:35:49,124 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:35:49,124 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:35:49,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:35:49 BasicIcfg [2025-03-09 06:35:49,127 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:35:49,128 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:35:49,128 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:35:49,128 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:35:49,128 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:35:47" (3/4) ... [2025-03-09 06:35:49,129 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:35:49,131 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-09 06:35:49,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-09 06:35:49,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-09 06:35:49,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-09 06:35:49,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-09 06:35:49,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:35:49,176 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:35:49,176 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:35:49,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:35:49,176 INFO L158 Benchmark]: Toolchain (without parser) took 2702.17ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 78.9MB in the end (delta: 32.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.55ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 90.9MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.75ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 89.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: Boogie Preprocessor took 26.03ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: IcfgBuilder took 502.67ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 55.6MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: TraceAbstraction took 1790.63ms. Allocated memory is still 142.6MB. Free memory was 55.2MB in the beginning and 84.4MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:35:49,177 INFO L158 Benchmark]: Witness Printer took 48.38ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 78.9MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:35:49,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.55ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 90.9MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.75ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 89.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.03ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 502.67ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 55.6MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1790.63ms. Allocated memory is still 142.6MB. Free memory was 55.2MB in the beginning and 84.4MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.38ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 78.9MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 66 locations, 79 edges, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 590 IncrementalHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 12 mSDtfsCounter, 590 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:35:49,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE