./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/09-regions_13-arraycollapse_nr.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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:16:56,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:16:56,855 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:16:56,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:16:56,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:16:56,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:16:56,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:16:56,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:16:56,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:16:56,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:16:56,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:16:56,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:16:56,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:16:56,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:16:56,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:16:56,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:16:56,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:16:56,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:16:56,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:16:56,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:16:56,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:16:56,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:16:56,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:16:56,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:16:56,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:16:56,911 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:16:56,911 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:16:56,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:16:56,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:16:56,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:16:56,912 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:16:56,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:16:56,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:16:56,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:16:56,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:56,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:16:56,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:16:56,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:16:56,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:16:56,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:16:56,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:16:56,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:16:56,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:16:56,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:16:56,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2024-11-10 22:16:57,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:16:57,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:16:57,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:16:57,191 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:16:57,191 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:16:57,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-10 22:16:58,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:16:58,951 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:16:58,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2024-11-10 22:16:58,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88114403/7d755f510caf41dd9e49fde075efeff1/FLAGf34e1b08b [2024-11-10 22:16:58,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f88114403/7d755f510caf41dd9e49fde075efeff1 [2024-11-10 22:16:58,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:16:58,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:16:58,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:16:58,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:16:58,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:16:59,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:58" (1/1) ... [2024-11-10 22:16:59,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c097d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59, skipping insertion in model container [2024-11-10 22:16:59,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:58" (1/1) ... [2024-11-10 22:16:59,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:16:59,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:16:59,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:16:59,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:16:59,813 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:16:59,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59 WrapperNode [2024-11-10 22:16:59,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:16:59,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:16:59,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:16:59,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:16:59,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,880 INFO L138 Inliner]: procedures = 372, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 230 [2024-11-10 22:16:59,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:16:59,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:16:59,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:16:59,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:16:59,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,922 INFO L175 MemorySlicer]: Split 90 memory accesses to 3 slices as follows [50, 16, 24]. 56 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [50, 10, 0]. The 19 writes are split as follows [0, 1, 18]. [2024-11-10 22:16:59,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,939 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:16:59,957 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:16:59,957 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:16:59,957 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:16:59,958 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (1/1) ... [2024-11-10 22:16:59,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:59,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:59,997 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) [2024-11-10 22:17:00,004 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 [2024-11-10 22:17:00,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 22:17:00,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 22:17:00,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 22:17:00,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 22:17:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 22:17:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 22:17:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:17:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:17:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:17:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:17:00,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:17:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:17:00,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:17:00,059 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:17:00,316 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:17:00,318 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:17:00,811 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:17:00,811 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:17:01,322 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:17:01,322 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:17:01,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:01 BoogieIcfgContainer [2024-11-10 22:17:01,323 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:17:01,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:17:01,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:17:01,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:17:01,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:16:58" (1/3) ... [2024-11-10 22:17:01,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15609f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:01, skipping insertion in model container [2024-11-10 22:17:01,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:59" (2/3) ... [2024-11-10 22:17:01,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15609f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:01, skipping insertion in model container [2024-11-10 22:17:01,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:01" (3/3) ... [2024-11-10 22:17:01,332 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2024-11-10 22:17:01,350 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:17:01,350 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 22:17:01,350 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:17:01,399 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:17:01,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 22 transitions, 48 flow [2024-11-10 22:17:01,462 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2024-11-10 22:17:01,462 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:01,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 2/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2024-11-10 22:17:01,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 22 transitions, 48 flow [2024-11-10 22:17:01,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 7 places, 7 transitions, 14 flow [2024-11-10 22:17:01,481 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:17:01,490 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;@44d62259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:17:01,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-10 22:17:01,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:17:01,497 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-11-10 22:17:01,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:01,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:01,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:17:01,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 22:17:01,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash 17952404, now seen corresponding path program 1 times [2024-11-10 22:17:01,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:01,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257456817] [2024-11-10 22:17:01,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:01,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:02,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257456817] [2024-11-10 22:17:02,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257456817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:02,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:02,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:17:02,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33751415] [2024-11-10 22:17:02,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:02,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:02,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:02,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:02,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:02,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-11-10 22:17:02,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 7 places, 7 transitions, 14 flow. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-10 22:17:02,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:02,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-11-10 22:17:02,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:02,234 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-10 22:17:02,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:02,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 11 events. 1/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-11-10 22:17:02,236 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 4 selfloop transitions, 3 changer transitions 0/9 dead transitions. [2024-11-10 22:17:02,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 9 transitions, 32 flow [2024-11-10 22:17:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-11-10 22:17:02,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23863636363636365 [2024-11-10 22:17:02,251 INFO L175 Difference]: Start difference. First operand has 7 places, 7 transitions, 14 flow. Second operand 4 states and 21 transitions. [2024-11-10 22:17:02,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 9 transitions, 32 flow [2024-11-10 22:17:02,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 9 transitions, 32 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:17:02,258 INFO L231 Difference]: Finished difference. Result has 12 places, 9 transitions, 36 flow [2024-11-10 22:17:02,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=12, PETRI_TRANSITIONS=9} [2024-11-10 22:17:02,266 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 5 predicate places. [2024-11-10 22:17:02,267 INFO L471 AbstractCegarLoop]: Abstraction has has 12 places, 9 transitions, 36 flow [2024-11-10 22:17:02,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-10 22:17:02,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:02,267 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:17:02,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:17:02,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 22:17:02,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:02,269 INFO L85 PathProgramCache]: Analyzing trace with hash 864496868, now seen corresponding path program 1 times [2024-11-10 22:17:02,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:02,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348474204] [2024-11-10 22:17:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:02,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:02,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:02,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348474204] [2024-11-10 22:17:02,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348474204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157218253] [2024-11-10 22:17:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:02,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:02,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:02,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:17:02,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:17:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:02,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:17:02,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:02,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:17:02,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157218253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:02,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:17:02,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:17:02,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849686554] [2024-11-10 22:17:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:02,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:17:02,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:02,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:17:02,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:17:02,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-11-10 22:17:02,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 36 flow. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-11-10 22:17:02,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:02,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-11-10 22:17:02,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:03,017 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-10 22:17:03,019 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:17:03,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 10 events. 1/10 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 11. Up to 4 conditions per place. [2024-11-10 22:17:03,020 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 1 selfloop transitions, 5 changer transitions 0/8 dead transitions. [2024-11-10 22:17:03,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 8 transitions, 44 flow [2024-11-10 22:17:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:17:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:17:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-11-10 22:17:03,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1893939393939394 [2024-11-10 22:17:03,023 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 36 flow. Second operand 6 states and 25 transitions. [2024-11-10 22:17:03,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 8 transitions, 44 flow [2024-11-10 22:17:03,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 8 transitions, 42 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:03,025 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 40 flow [2024-11-10 22:17:03,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=40, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2024-11-10 22:17:03,026 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 8 predicate places. [2024-11-10 22:17:03,026 INFO L471 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 40 flow [2024-11-10 22:17:03,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-11-10 22:17:03,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:03,027 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:17:03,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 22:17:03,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:03,228 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 22:17:03,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:03,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1029599655, now seen corresponding path program 1 times [2024-11-10 22:17:03,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:03,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766100312] [2024-11-10 22:17:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:03,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:17:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:03,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766100312] [2024-11-10 22:17:03,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766100312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:17:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099203616] [2024-11-10 22:17:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:03,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:17:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:17:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:17:03,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 22 [2024-11-10 22:17:03,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 8 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-11-10 22:17:03,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:03,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 22 [2024-11-10 22:17:03,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:03,404 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-11-10 22:17:03,404 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 22:17:03,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 9 events. 1/9 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 5. Up to 4 conditions per place. [2024-11-10 22:17:03,405 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2024-11-10 22:17:03,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 7 transitions, 46 flow [2024-11-10 22:17:03,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:17:03,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:17:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-10 22:17:03,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24242424242424243 [2024-11-10 22:17:03,406 INFO L175 Difference]: Start difference. First operand has 15 places, 8 transitions, 40 flow. Second operand 3 states and 16 transitions. [2024-11-10 22:17:03,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 7 transitions, 46 flow [2024-11-10 22:17:03,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 33 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-10 22:17:03,407 INFO L231 Difference]: Finished difference. Result has 11 places, 0 transitions, 0 flow [2024-11-10 22:17:03,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=11, PETRI_TRANSITIONS=0} [2024-11-10 22:17:03,408 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 4 predicate places. [2024-11-10 22:17:03,408 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 0 transitions, 0 flow [2024-11-10 22:17:03,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-11-10 22:17:03,411 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2024-11-10 22:17:03,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2024-11-10 22:17:03,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-10 22:17:03,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:17:03,413 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 22:17:03,416 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:17:03,416 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:17:03,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:17:03 BasicIcfg [2024-11-10 22:17:03,422 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:17:03,423 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:17:03,423 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:17:03,423 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:17:03,424 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:01" (3/4) ... [2024-11-10 22:17:03,426 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:17:03,430 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 22:17:03,439 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 128 nodes and edges [2024-11-10 22:17:03,440 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-11-10 22:17:03,440 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-10 22:17:03,441 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-10 22:17:03,441 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 22:17:03,441 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 22:17:03,549 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:17:03,550 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:17:03,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:17:03,550 INFO L158 Benchmark]: Toolchain (without parser) took 4559.18ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 98.9MB in the beginning and 144.3MB in the end (delta: -45.4MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2024-11-10 22:17:03,551 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:17:03,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 820.79ms. Allocated memory is still 157.3MB. Free memory was 98.9MB in the beginning and 54.2MB in the end (delta: 44.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-10 22:17:03,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.39ms. Allocated memory is still 157.3MB. Free memory was 54.2MB in the beginning and 50.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:17:03,551 INFO L158 Benchmark]: Boogie Preprocessor took 75.15ms. Allocated memory is still 157.3MB. Free memory was 50.6MB in the beginning and 46.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:17:03,552 INFO L158 Benchmark]: IcfgBuilder took 1366.01ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 46.4MB in the beginning and 131.6MB in the end (delta: -85.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-11-10 22:17:03,552 INFO L158 Benchmark]: TraceAbstraction took 2097.37ms. Allocated memory is still 234.9MB. Free memory was 131.6MB in the beginning and 150.6MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:17:03,552 INFO L158 Benchmark]: Witness Printer took 126.93ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 144.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 22:17:03,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 820.79ms. Allocated memory is still 157.3MB. Free memory was 98.9MB in the beginning and 54.2MB in the end (delta: 44.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.39ms. Allocated memory is still 157.3MB. Free memory was 54.2MB in the beginning and 50.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.15ms. Allocated memory is still 157.3MB. Free memory was 50.6MB in the beginning and 46.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1366.01ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 46.4MB in the beginning and 131.6MB in the end (delta: -85.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2097.37ms. Allocated memory is still 234.9MB. Free memory was 131.6MB in the beginning and 150.6MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.93ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 144.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: 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, 28 locations, 3 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 2 NumberOfNonLiveVariables, 376 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/10 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:17:03,579 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