./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_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.graphml --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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:34:07,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:34:07,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:34:07,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:34:07,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:34:07,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:34:07,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:34:07,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:34:07,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:34:07,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:34:07,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:34:07,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:34:07,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:34:07,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:34:07,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:34:07,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:34:07,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:34:07,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:34:07,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:34:07,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:34:07,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:34:07,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:34:07,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:34:07,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:34:07,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:34:07,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:34:07,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:34:07,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:34:07,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:34:07,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:34:07,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:34:07,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:34:07,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:34:07,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:34:07,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:34:07,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:34:07,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:34:07,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:34:07,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:34:07,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:34:07,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:34:07,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:34:07,301 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:34:07,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:34:07,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:34:07,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:34:07,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:34:07,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:34:07,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:34:07,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:34:07,305 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:34:07,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:34:07,306 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:34:07,306 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:34:07,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:34:07,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:34:07,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:34:07,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:34:07,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:34:07,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:34:07,308 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:34:07,308 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:34:07,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:34:07,308 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:34:07,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:34:07,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:34:07,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:34:07,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:34:07,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:34:07,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:34:07,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:34:07,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:34:07,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:34:07,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:34:07,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:34:07,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:34:07,311 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:34:07,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:34:07,311 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:34:07,311 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:34:07,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:34:07,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:34:07,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:34:07,627 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:34:07,627 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:34:07,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.i [2023-08-30 09:34:08,773 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:34:09,048 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:34:09,049 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_43-thread_create_nr.i [2023-08-30 09:34:09,065 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32a77ecc/0317c64864604967854392741ae0c50b/FLAGf5ec3e367 [2023-08-30 09:34:09,081 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32a77ecc/0317c64864604967854392741ae0c50b [2023-08-30 09:34:09,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:34:09,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:34:09,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:34:09,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:34:09,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:34:09,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de72ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09, skipping insertion in model container [2023-08-30 09:34:09,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:34:09,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:34:09,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:34:09,602 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:34:09,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:34:09,726 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:34:09,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09 WrapperNode [2023-08-30 09:34:09,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:34:09,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:34:09,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:34:09,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:34:09,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,771 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-08-30 09:34:09,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:34:09,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:34:09,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:34:09,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:34:09,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:34:09,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:34:09,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:34:09,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:34:09,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (1/1) ... [2023-08-30 09:34:09,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:34:09,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:34:09,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:34:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:34:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:34:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:34:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:34:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:34:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:34:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:34:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:34:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:34:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:34:09,888 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:34:09,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:34:10,059 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:34:10,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:34:10,220 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:34:10,226 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:34:10,228 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 09:34:10,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:10 BoogieIcfgContainer [2023-08-30 09:34:10,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:34:10,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:34:10,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:34:10,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:34:10,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:34:09" (1/3) ... [2023-08-30 09:34:10,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0ec13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:34:10, skipping insertion in model container [2023-08-30 09:34:10,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:09" (2/3) ... [2023-08-30 09:34:10,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0ec13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:34:10, skipping insertion in model container [2023-08-30 09:34:10,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:10" (3/3) ... [2023-08-30 09:34:10,239 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2023-08-30 09:34:10,247 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:34:10,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:34:10,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 09:34:10,255 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:34:10,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:34:10,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 125 flow [2023-08-30 09:34:10,409 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2023-08-30 09:34:10,416 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:10,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 09:34:10,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 60 transitions, 125 flow [2023-08-30 09:34:10,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 59 transitions, 121 flow [2023-08-30 09:34:10,427 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:34:10,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 59 transitions, 121 flow [2023-08-30 09:34:10,448 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 59 transitions, 121 flow [2023-08-30 09:34:10,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 59 transitions, 121 flow [2023-08-30 09:34:10,478 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2023-08-30 09:34:10,479 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:10,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 09:34:10,480 INFO L119 LiptonReduction]: Number of co-enabled transitions 308 [2023-08-30 09:34:12,873 INFO L134 LiptonReduction]: Checked pairs total: 249 [2023-08-30 09:34:12,874 INFO L136 LiptonReduction]: Total number of compositions: 63 [2023-08-30 09:34:12,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:34:12,899 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@3295e1f7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:34:12,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-30 09:34:12,902 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 09:34:12,902 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:12,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:12,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 09:34:12,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:12,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:12,908 INFO L85 PathProgramCache]: Analyzing trace with hash 225, now seen corresponding path program 1 times [2023-08-30 09:34:12,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:12,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686035877] [2023-08-30 09:34:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:12,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:13,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:13,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686035877] [2023-08-30 09:34:13,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686035877] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:13,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:13,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 09:34:13,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181901494] [2023-08-30 09:34:13,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:13,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:34:13,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:34:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:34:13,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 123 [2023-08-30 09:34:13,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 23 flow. Second operand has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-08-30 09:34:13,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:13,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 123 [2023-08-30 09:34:13,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:13,072 INFO L130 PetriNetUnfolder]: 9/26 cut-off events. [2023-08-30 09:34:13,073 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:13,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 73 event pairs, 9 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 48. Up to 27 conditions per place. [2023-08-30 09:34:13,075 INFO L137 encePairwiseOnDemand]: 121/123 looper letters, 8 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-08-30 09:34:13,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 35 flow [2023-08-30 09:34:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:34:13,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:34:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 128 transitions. [2023-08-30 09:34:13,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5203252032520326 [2023-08-30 09:34:13,086 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 128 transitions. [2023-08-30 09:34:13,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 128 transitions. [2023-08-30 09:34:13,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:13,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 128 transitions. [2023-08-30 09:34:13,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 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) [2023-08-30 09:34:13,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2023-08-30 09:34:13,095 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2023-08-30 09:34:13,097 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 23 flow. Second operand 2 states and 128 transitions. [2023-08-30 09:34:13,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 35 flow [2023-08-30 09:34:13,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:13,100 INFO L231 Difference]: Finished difference. Result has 12 places, 8 transitions, 18 flow [2023-08-30 09:34:13,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=12, PETRI_TRANSITIONS=8} [2023-08-30 09:34:13,104 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-08-30 09:34:13,105 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 8 transitions, 18 flow [2023-08-30 09:34:13,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-08-30 09:34:13,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:13,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:34:13,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:34:13,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:13,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash 221453, now seen corresponding path program 1 times [2023-08-30 09:34:13,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:13,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677021020] [2023-08-30 09:34:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:13,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:13,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:13,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677021020] [2023-08-30 09:34:13,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677021020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:13,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:13,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:13,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663824785] [2023-08-30 09:34:13,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:13,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:13,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:13,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:13,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:13,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 123 [2023-08-30 09:34:13,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-08-30 09:34:13,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:13,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 123 [2023-08-30 09:34:13,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:13,265 INFO L130 PetriNetUnfolder]: 3/12 cut-off events. [2023-08-30 09:34:13,265 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:13,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 12 events. 3/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 23 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 26. Up to 8 conditions per place. [2023-08-30 09:34:13,266 INFO L137 encePairwiseOnDemand]: 119/123 looper letters, 5 selfloop transitions, 2 changer transitions 2/9 dead transitions. [2023-08-30 09:34:13,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 9 transitions, 38 flow [2023-08-30 09:34:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2023-08-30 09:34:13,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45257452574525747 [2023-08-30 09:34:13,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 167 transitions. [2023-08-30 09:34:13,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 167 transitions. [2023-08-30 09:34:13,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:13,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 167 transitions. [2023-08-30 09:34:13,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2023-08-30 09:34:13,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-08-30 09:34:13,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-08-30 09:34:13,272 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 18 flow. Second operand 3 states and 167 transitions. [2023-08-30 09:34:13,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 9 transitions, 38 flow [2023-08-30 09:34:13,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 09:34:13,273 INFO L231 Difference]: Finished difference. Result has 12 places, 5 transitions, 16 flow [2023-08-30 09:34:13,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=16, PETRI_PLACES=12, PETRI_TRANSITIONS=5} [2023-08-30 09:34:13,274 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-08-30 09:34:13,274 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 5 transitions, 16 flow [2023-08-30 09:34:13,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-08-30 09:34:13,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:13,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:34:13,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:34:13,275 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:13,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash 221447, now seen corresponding path program 1 times [2023-08-30 09:34:13,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:13,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27401472] [2023-08-30 09:34:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:13,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:13,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27401472] [2023-08-30 09:34:13,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27401472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:13,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:13,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825640534] [2023-08-30 09:34:13,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:13,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:13,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:13,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:13,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:13,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 123 [2023-08-30 09:34:13,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 5 transitions, 16 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-08-30 09:34:13,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:13,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 123 [2023-08-30 09:34:13,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:13,339 INFO L130 PetriNetUnfolder]: 1/6 cut-off events. [2023-08-30 09:34:13,339 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:34:13,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 6 events. 1/6 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 17. Up to 6 conditions per place. [2023-08-30 09:34:13,340 INFO L137 encePairwiseOnDemand]: 121/123 looper letters, 3 selfloop transitions, 1 changer transitions 0/4 dead transitions. [2023-08-30 09:34:13,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 4 transitions, 22 flow [2023-08-30 09:34:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:13,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:13,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2023-08-30 09:34:13,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46883468834688347 [2023-08-30 09:34:13,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2023-08-30 09:34:13,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2023-08-30 09:34:13,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:13,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2023-08-30 09:34:13,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2023-08-30 09:34:13,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-08-30 09:34:13,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-08-30 09:34:13,352 INFO L175 Difference]: Start difference. First operand has 12 places, 5 transitions, 16 flow. Second operand 3 states and 173 transitions. [2023-08-30 09:34:13,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 4 transitions, 22 flow [2023-08-30 09:34:13,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 4 transitions, 18 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:34:13,352 INFO L231 Difference]: Finished difference. Result has 10 places, 4 transitions, 12 flow [2023-08-30 09:34:13,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=10, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=12, PETRI_PLACES=10, PETRI_TRANSITIONS=4} [2023-08-30 09:34:13,353 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-08-30 09:34:13,354 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 4 transitions, 12 flow [2023-08-30 09:34:13,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-08-30 09:34:13,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:13,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:34:13,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:34:13,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:13,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:13,356 INFO L85 PathProgramCache]: Analyzing trace with hash 221461, now seen corresponding path program 1 times [2023-08-30 09:34:13,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:13,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074965610] [2023-08-30 09:34:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:13,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:13,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:13,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074965610] [2023-08-30 09:34:13,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074965610] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:13,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:13,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:13,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425107484] [2023-08-30 09:34:13,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:13,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:13,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:13,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:13,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:13,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 123 [2023-08-30 09:34:13,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 4 transitions, 12 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-08-30 09:34:13,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:13,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 123 [2023-08-30 09:34:13,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:13,427 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 09:34:13,427 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:13,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-30 09:34:13,428 INFO L137 encePairwiseOnDemand]: 121/123 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2023-08-30 09:34:13,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 3 transitions, 16 flow [2023-08-30 09:34:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2023-08-30 09:34:13,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612466124661245 [2023-08-30 09:34:13,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2023-08-30 09:34:13,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2023-08-30 09:34:13,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:13,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2023-08-30 09:34:13,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-08-30 09:34:13,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-08-30 09:34:13,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-08-30 09:34:13,433 INFO L175 Difference]: Start difference. First operand has 10 places, 4 transitions, 12 flow. Second operand 3 states and 172 transitions. [2023-08-30 09:34:13,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 3 transitions, 16 flow [2023-08-30 09:34:13,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 3 transitions, 15 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:13,433 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2023-08-30 09:34:13,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=9, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2023-08-30 09:34:13,434 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-08-30 09:34:13,434 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2023-08-30 09:34:13,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2023-08-30 09:34:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-08-30 09:34:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-08-30 09:34:13,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-08-30 09:34:13,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-08-30 09:34:13,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-30 09:34:13,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-08-30 09:34:13,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-08-30 09:34:13,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-08-30 09:34:13,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-08-30 09:34:13,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:34:13,439 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 09:34:13,444 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:34:13,444 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:34:13,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:34:13 BasicIcfg [2023-08-30 09:34:13,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:34:13,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:34:13,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:34:13,448 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:34:13,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:10" (3/4) ... [2023-08-30 09:34:13,451 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:34:13,456 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:34:13,459 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 09:34:13,460 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 09:34:13,460 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:34:13,493 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:34:13,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:34:13,494 INFO L158 Benchmark]: Toolchain (without parser) took 4409.37ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 70.2MB in the beginning and 80.7MB in the end (delta: -10.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-08-30 09:34:13,495 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:34:13,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.38ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 66.3MB in the end (delta: 3.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-08-30 09:34:13,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.48ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:13,495 INFO L158 Benchmark]: Boogie Preprocessor took 36.16ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 62.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:34:13,496 INFO L158 Benchmark]: RCFGBuilder took 422.08ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 50.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 09:34:13,496 INFO L158 Benchmark]: TraceAbstraction took 3214.62ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 82.8MB in the end (delta: -33.2MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-08-30 09:34:13,496 INFO L158 Benchmark]: Witness Printer took 45.62ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:13,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.38ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 66.3MB in the end (delta: 3.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.48ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.16ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 62.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 422.08ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 50.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3214.62ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 82.8MB in the end (delta: -33.2MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Witness Printer took 45.62ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 63 PlacesBefore, 14 PlacesAfterwards, 59 TransitionsBefore, 10 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 63 TotalNumberOfCompositions, 249 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 153, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 249, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 153, unknown conditional: 0, unknown unconditional: 153] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 74 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: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 4 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:34:13,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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