./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:48:28,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:48:28,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:48:28,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:48:28,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:48:28,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:48:28,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:48:28,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:48:28,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:48:28,965 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:48:28,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:48:28,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:48:28,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:48:28,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:48:28,971 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:48:28,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:48:28,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:48:28,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:48:28,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:48:28,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:48:28,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:48:28,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:48:28,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:48:28,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:48:28,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:48:28,976 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:48:28,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:48:28,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:48:28,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:48:28,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:48:28,977 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:48:28,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:48:28,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:48:28,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:48:28,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:48:28,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:48:28,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:48:28,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:48:28,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:48:28,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:48:28,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:48:28,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:48:28,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:48:28,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:48:28,982 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2024-11-17 07:48:29,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:48:29,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:48:29,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:48:29,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:48:29,269 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:48:29,271 INFO L431 ainManager$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 [2024-11-17 07:48:30,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:48:31,111 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:48:31,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2024-11-17 07:48:31,130 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c1e657ab/3dba9916c7e243edae23768cc04bddd7/FLAGf0c1e14ad [2024-11-17 07:48:31,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c1e657ab/3dba9916c7e243edae23768cc04bddd7 [2024-11-17 07:48:31,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:48:31,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:48:31,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:48:31,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:48:31,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:48:31,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355c6b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31, skipping insertion in model container [2024-11-17 07:48:31,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,202 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:48:31,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:48:31,597 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:48:31,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:48:31,722 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:48:31,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31 WrapperNode [2024-11-17 07:48:31,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:48:31,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:48:31,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:48:31,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:48:31,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,781 INFO L138 Inliner]: procedures = 171, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-17 07:48:31,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:48:31,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:48:31,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:48:31,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:48:31,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,821 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 5, 5, 5, 6]. 26 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 5, 5, 1]. The 2 writes are split as follows [0, 0, 0, 0, 2]. [2024-11-17 07:48:31,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,835 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:48:31,851 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:48:31,852 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:48:31,852 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:48:31,852 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (1/1) ... [2024-11-17 07:48:31,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:48:31,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:48:31,892 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) [2024-11-17 07:48:31,899 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 [2024-11-17 07:48:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:48:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:48:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:48:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:48:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 07:48:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:48:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:48:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:48:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:48:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 07:48:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:48:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:48:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:48:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:48:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:48:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:48:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:48:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:48:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:48:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:48:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 07:48:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:48:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:48:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:48:31,962 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:48:32,166 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:48:32,168 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:48:32,319 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L708: havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-17 07:48:32,319 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L708-1: SUMMARY for call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset); srcloc: null [2024-11-17 07:48:32,374 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:48:32,374 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:48:32,546 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:48:32,548 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:48:32,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:48:32 BoogieIcfgContainer [2024-11-17 07:48:32,548 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:48:32,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:48:32,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:48:32,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:48:32,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:48:31" (1/3) ... [2024-11-17 07:48:32,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17605cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:48:32, skipping insertion in model container [2024-11-17 07:48:32,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:31" (2/3) ... [2024-11-17 07:48:32,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17605cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:48:32, skipping insertion in model container [2024-11-17 07:48:32,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:48:32" (3/3) ... [2024-11-17 07:48:32,561 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2024-11-17 07:48:32,582 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:48:32,582 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-17 07:48:32,582 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:48:32,630 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:48:32,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 51 transitions, 109 flow [2024-11-17 07:48:32,707 INFO L124 PetriNetUnfolderBase]: 8/50 cut-off events. [2024-11-17 07:48:32,707 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:48:32,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 50 events. 8/50 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2024-11-17 07:48:32,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 51 transitions, 109 flow [2024-11-17 07:48:32,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 48 transitions, 99 flow [2024-11-17 07:48:32,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:48:32,738 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;@53072243, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:48:32,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-17 07:48:32,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:48:32,748 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-17 07:48:32,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:48:32,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:32,750 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:32,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:48:32,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash 470863619, now seen corresponding path program 1 times [2024-11-17 07:48:32,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:32,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430299233] [2024-11-17 07:48:32,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:32,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:33,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:33,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430299233] [2024-11-17 07:48:33,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430299233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:33,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:33,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:48:33,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377129116] [2024-11-17 07:48:33,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:33,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:48:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:33,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:48:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:48:33,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 51 [2024-11-17 07:48:33,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-11-17 07:48:33,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:33,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 51 [2024-11-17 07:48:33,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:33,644 INFO L124 PetriNetUnfolderBase]: 85/321 cut-off events. [2024-11-17 07:48:33,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:48:33,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 321 events. 85/321 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1482 event pairs, 0 based on Foata normal form. 94/404 useless extension candidates. Maximal degree in co-relation 518. Up to 100 conditions per place. [2024-11-17 07:48:33,649 INFO L140 encePairwiseOnDemand]: 34/51 looper letters, 33 selfloop transitions, 6 changer transitions 11/65 dead transitions. [2024-11-17 07:48:33,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 65 transitions, 227 flow [2024-11-17 07:48:33,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:48:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:48:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 182 transitions. [2024-11-17 07:48:33,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5947712418300654 [2024-11-17 07:48:33,665 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 99 flow. Second operand 6 states and 182 transitions. [2024-11-17 07:48:33,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 65 transitions, 227 flow [2024-11-17 07:48:33,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:48:33,674 INFO L231 Difference]: Finished difference. Result has 47 places, 32 transitions, 83 flow [2024-11-17 07:48:33,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=83, PETRI_PLACES=47, PETRI_TRANSITIONS=32} [2024-11-17 07:48:33,682 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 3 predicate places. [2024-11-17 07:48:33,683 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 32 transitions, 83 flow [2024-11-17 07:48:33,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-11-17 07:48:33,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:33,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:33,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:48:33,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:48:33,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:33,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1607965039, now seen corresponding path program 1 times [2024-11-17 07:48:33,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:33,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667951728] [2024-11-17 07:48:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:33,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:34,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667951728] [2024-11-17 07:48:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667951728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 07:48:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114915731] [2024-11-17 07:48:34,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:34,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:48:34,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:48:34,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:48:34,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 51 [2024-11-17 07:48:34,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 32 transitions, 83 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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) [2024-11-17 07:48:34,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:34,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 51 [2024-11-17 07:48:34,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:34,488 INFO L124 PetriNetUnfolderBase]: 61/220 cut-off events. [2024-11-17 07:48:34,489 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-17 07:48:34,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 220 events. 61/220 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 914 event pairs, 0 based on Foata normal form. 10/227 useless extension candidates. Maximal degree in co-relation 399. Up to 39 conditions per place. [2024-11-17 07:48:34,491 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 40 selfloop transitions, 9 changer transitions 0/62 dead transitions. [2024-11-17 07:48:34,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 62 transitions, 248 flow [2024-11-17 07:48:34,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:48:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:48:34,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 221 transitions. [2024-11-17 07:48:34,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-11-17 07:48:34,494 INFO L175 Difference]: Start difference. First operand has 47 places, 32 transitions, 83 flow. Second operand 10 states and 221 transitions. [2024-11-17 07:48:34,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 62 transitions, 248 flow [2024-11-17 07:48:34,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:48:34,497 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 96 flow [2024-11-17 07:48:34,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=96, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2024-11-17 07:48:34,498 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 0 predicate places. [2024-11-17 07:48:34,498 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 96 flow [2024-11-17 07:48:34,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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) [2024-11-17 07:48:34,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:34,499 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:34,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:48:34,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-17 07:48:34,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:34,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1692691071, now seen corresponding path program 1 times [2024-11-17 07:48:34,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:34,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113137909] [2024-11-17 07:48:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:34,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:34,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:34,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113137909] [2024-11-17 07:48:34,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113137909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:34,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:34,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 07:48:34,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145251764] [2024-11-17 07:48:34,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:34,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 07:48:34,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:34,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 07:48:34,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:48:34,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 51 [2024-11-17 07:48:34,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 96 flow. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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) [2024-11-17 07:48:34,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:34,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 51 [2024-11-17 07:48:34,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:34,955 INFO L124 PetriNetUnfolderBase]: 53/202 cut-off events. [2024-11-17 07:48:34,956 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-17 07:48:34,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 202 events. 53/202 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 827 event pairs, 0 based on Foata normal form. 10/209 useless extension candidates. Maximal degree in co-relation 378. Up to 39 conditions per place. [2024-11-17 07:48:34,957 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2024-11-17 07:48:34,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 248 flow [2024-11-17 07:48:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:48:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:48:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 219 transitions. [2024-11-17 07:48:34,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4294117647058823 [2024-11-17 07:48:34,960 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 96 flow. Second operand 10 states and 219 transitions. [2024-11-17 07:48:34,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 248 flow [2024-11-17 07:48:34,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 235 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-17 07:48:34,965 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-17 07:48:34,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-17 07:48:34,966 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2024-11-17 07:48:34,966 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-17 07:48:34,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 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) [2024-11-17 07:48:34,970 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-17 07:48:34,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-17 07:48:34,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-17 07:48:34,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-17 07:48:34,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2024-11-17 07:48:34,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-17 07:48:34,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-17 07:48:34,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-17 07:48:34,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-17 07:48:34,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:48:34,976 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-17 07:48:34,984 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:48:34,985 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:48:34,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:48:34 BasicIcfg [2024-11-17 07:48:34,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:48:34,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:48:34,993 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:48:34,994 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:48:34,994 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:48:32" (3/4) ... [2024-11-17 07:48:34,996 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:48:34,999 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-17 07:48:35,004 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-17 07:48:35,005 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-17 07:48:35,005 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-17 07:48:35,006 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 07:48:35,006 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 07:48:35,087 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:48:35,088 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:48:35,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:48:35,089 INFO L158 Benchmark]: Toolchain (without parser) took 3936.71ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 89.6MB in the beginning and 62.4MB in the end (delta: 27.2MB). Peak memory consumption was 86.7MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,089 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:48:35,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.90ms. Allocated memory is still 146.8MB. Free memory was 89.6MB in the beginning and 66.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.07ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 64.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,090 INFO L158 Benchmark]: Boogie Preprocessor took 68.86ms. Allocated memory is still 146.8MB. Free memory was 64.3MB in the beginning and 62.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,090 INFO L158 Benchmark]: IcfgBuilder took 697.18ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 62.3MB in the beginning and 148.5MB in the end (delta: -86.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,091 INFO L158 Benchmark]: TraceAbstraction took 2440.35ms. Allocated memory is still 205.5MB. Free memory was 147.4MB in the beginning and 66.6MB in the end (delta: 80.8MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,091 INFO L158 Benchmark]: Witness Printer took 94.94ms. Allocated memory is still 205.5MB. Free memory was 66.6MB in the beginning and 62.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:48:35,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.90ms. Allocated memory is still 146.8MB. Free memory was 89.6MB in the beginning and 66.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.07ms. Allocated memory is still 146.8MB. Free memory was 66.5MB in the beginning and 64.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.86ms. Allocated memory is still 146.8MB. Free memory was 64.3MB in the beginning and 62.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 697.18ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 62.3MB in the beginning and 148.5MB in the end (delta: -86.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2440.35ms. Allocated memory is still 205.5MB. Free memory was 147.4MB in the beginning and 66.6MB in the end (delta: 80.8MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. * Witness Printer took 94.94ms. Allocated memory is still 205.5MB. Free memory was 66.6MB in the beginning and 62.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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, 73 locations, 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: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 202 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 611 IncrementalHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 12 mSDtfsCounter, 611 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, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred 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, 0.9s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 276 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:48:35,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE