./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c --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/weaver/chl-file-item-trans.wvr.c -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 7850c8f92b7e0b0b866687e8f3ea719169cacbc5985a977f15b280bf9bb53b5b --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 10:55:23,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:55:23,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:55:23,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:55:23,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:55:23,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:55:23,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:55:23,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:55:23,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:55:23,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:55:23,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:55:23,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:55:23,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:55:23,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:55:23,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:55:23,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:55:23,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:55:23,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:55:23,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:55:23,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:55:23,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:55:23,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:55:23,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:55:23,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:55:23,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:55:23,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:55:23,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:55:23,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:55:23,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:55:23,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:55:23,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:55:23,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:55:23,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:55:23,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:55:23,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:55:23,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:55:23,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:55:23,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:55:23,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:55:23,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:55:23,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:55:23,307 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:55:23,339 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:55:23,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:55:23,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:55:23,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:55:23,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:55:23,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:55:23,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:55:23,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:55:23,342 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:55:23,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:55:23,343 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:55:23,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:55:23,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:55:23,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:55:23,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:55:23,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:55:23,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:55:23,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:55:23,345 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:55:23,345 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:55:23,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:55:23,345 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:55:23,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:55:23,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:55:23,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:55:23,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:55:23,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:55:23,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:55:23,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:55:23,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:55:23,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:55:23,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:55:23,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:55:23,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:55:23,348 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:55:23,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:55:23,349 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:55:23,349 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7850c8f92b7e0b0b866687e8f3ea719169cacbc5985a977f15b280bf9bb53b5b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:55:23,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:55:23,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:55:23,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:55:23,678 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:55:23,679 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:55:23,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c [2023-08-30 10:55:24,803 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:55:25,004 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:55:25,005 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c [2023-08-30 10:55:25,010 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231ccac6a/259f43e02d4140d2b7f749d22cc3e850/FLAG7b9c90328 [2023-08-30 10:55:25,024 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231ccac6a/259f43e02d4140d2b7f749d22cc3e850 [2023-08-30 10:55:25,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:55:25,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:55:25,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:55:25,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:55:25,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:55:25,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a00f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25, skipping insertion in model container [2023-08-30 10:55:25,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:55:25,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:55:25,232 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c[2817,2830] [2023-08-30 10:55:25,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:55:25,248 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:55:25,267 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c[2817,2830] [2023-08-30 10:55:25,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:55:25,281 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:55:25,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25 WrapperNode [2023-08-30 10:55:25,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:55:25,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:55:25,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:55:25,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:55:25,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,353 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 244 [2023-08-30 10:55:25,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:55:25,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:55:25,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:55:25,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:55:25,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,403 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:55:25,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:55:25,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:55:25,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:55:25,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (1/1) ... [2023-08-30 10:55:25,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:55:25,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:55:25,431 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 10:55:25,434 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 10:55:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:55:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 10:55:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 10:55:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 10:55:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 10:55:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 10:55:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 10:55:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:55:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:55:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:55:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:55:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:55:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 10:55:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:55:25,468 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 10:55:25,628 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:55:25,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:55:26,001 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:55:26,014 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:55:26,015 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 10:55:26,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:55:26 BoogieIcfgContainer [2023-08-30 10:55:26,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:55:26,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:55:26,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:55:26,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:55:26,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:55:25" (1/3) ... [2023-08-30 10:55:26,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a90febe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:55:26, skipping insertion in model container [2023-08-30 10:55:26,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:55:25" (2/3) ... [2023-08-30 10:55:26,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a90febe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:55:26, skipping insertion in model container [2023-08-30 10:55:26,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:55:26" (3/3) ... [2023-08-30 10:55:26,024 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2023-08-30 10:55:26,030 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:55:26,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:55:26,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-30 10:55:26,041 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:55:26,202 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 10:55:26,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 298 transitions, 620 flow [2023-08-30 10:55:26,394 INFO L130 PetriNetUnfolder]: 25/295 cut-off events. [2023-08-30 10:55:26,394 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 10:55:26,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 295 events. 25/295 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 817 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-30 10:55:26,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 298 transitions, 620 flow [2023-08-30 10:55:26,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 277 transitions, 569 flow [2023-08-30 10:55:26,418 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:55:26,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 277 transitions, 569 flow [2023-08-30 10:55:26,433 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 277 transitions, 569 flow [2023-08-30 10:55:26,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 277 transitions, 569 flow [2023-08-30 10:55:26,496 INFO L130 PetriNetUnfolder]: 24/277 cut-off events. [2023-08-30 10:55:26,496 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 10:55:26,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 277 events. 24/277 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 819 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-08-30 10:55:26,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 30888 [2023-08-30 10:55:40,020 INFO L134 LiptonReduction]: Checked pairs total: 29557 [2023-08-30 10:55:40,021 INFO L136 LiptonReduction]: Total number of compositions: 368 [2023-08-30 10:55:40,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:55:40,043 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;@bf08228, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:55:40,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-30 10:55:40,045 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 10:55:40,045 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:55:40,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:55:40,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:55:40,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:55:40,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:40,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1270561, now seen corresponding path program 1 times [2023-08-30 10:55:40,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465626937] [2023-08-30 10:55:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:40,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:40,316 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 10:55:40,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:40,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465626937] [2023-08-30 10:55:40,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465626937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:55:40,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:55:40,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:55:40,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633502514] [2023-08-30 10:55:40,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:55:40,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:55:40,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:55:40,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:55:40,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:55:40,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 666 [2023-08-30 10:55:40,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:40,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:55:40,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 666 [2023-08-30 10:55:40,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:55:40,678 INFO L130 PetriNetUnfolder]: 777/1210 cut-off events. [2023-08-30 10:55:40,679 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2023-08-30 10:55:40,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2523 conditions, 1210 events. 777/1210 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 5344 event pairs, 777 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 2116. Up to 1210 conditions per place. [2023-08-30 10:55:40,686 INFO L137 encePairwiseOnDemand]: 657/666 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 10:55:40,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 24 transitions, 111 flow [2023-08-30 10:55:40,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:55:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:55:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 878 transitions. [2023-08-30 10:55:40,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4394394394394394 [2023-08-30 10:55:40,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 878 transitions. [2023-08-30 10:55:40,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 878 transitions. [2023-08-30 10:55:40,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:55:40,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 878 transitions. [2023-08-30 10:55:40,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 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 10:55:40,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:40,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:40,718 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 79 flow. Second operand 3 states and 878 transitions. [2023-08-30 10:55:40,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 24 transitions, 111 flow [2023-08-30 10:55:40,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 10:55:40,725 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 56 flow [2023-08-30 10:55:40,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-30 10:55:40,729 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2023-08-30 10:55:40,730 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 56 flow [2023-08-30 10:55:40,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:40,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:55:40,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:55:40,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:55:40,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:55:40,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1270571, now seen corresponding path program 1 times [2023-08-30 10:55:40,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:40,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693675013] [2023-08-30 10:55:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:40,811 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 10:55:40,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:40,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693675013] [2023-08-30 10:55:40,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693675013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:55:40,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:55:40,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:55:40,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351858694] [2023-08-30 10:55:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:55:40,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:55:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:55:40,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:55:40,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:55:40,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 666 [2023-08-30 10:55:40,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:40,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:55:40,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 666 [2023-08-30 10:55:40,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:55:41,000 INFO L130 PetriNetUnfolder]: 493/786 cut-off events. [2023-08-30 10:55:41,000 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:55:41,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1613 conditions, 786 events. 493/786 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3214 event pairs, 493 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 1607. Up to 786 conditions per place. [2023-08-30 10:55:41,004 INFO L137 encePairwiseOnDemand]: 663/666 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-30 10:55:41,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 96 flow [2023-08-30 10:55:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:55:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:55:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 870 transitions. [2023-08-30 10:55:41,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43543543543543545 [2023-08-30 10:55:41,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 870 transitions. [2023-08-30 10:55:41,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 870 transitions. [2023-08-30 10:55:41,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:55:41,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 870 transitions. [2023-08-30 10:55:41,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 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 10:55:41,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,014 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 56 flow. Second operand 3 states and 870 transitions. [2023-08-30 10:55:41,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 96 flow [2023-08-30 10:55:41,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:55:41,015 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 53 flow [2023-08-30 10:55:41,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-30 10:55:41,017 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2023-08-30 10:55:41,017 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 53 flow [2023-08-30 10:55:41,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:41,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:55:41,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:55:41,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:55:41,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:55:41,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1270582, now seen corresponding path program 1 times [2023-08-30 10:55:41,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:41,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832098907] [2023-08-30 10:55:41,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:41,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:41,124 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 10:55:41,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:41,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832098907] [2023-08-30 10:55:41,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832098907] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:55:41,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:55:41,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:55:41,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063452511] [2023-08-30 10:55:41,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:55:41,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:55:41,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:55:41,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:55:41,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:55:41,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 666 [2023-08-30 10:55:41,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:41,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:55:41,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 666 [2023-08-30 10:55:41,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:55:41,253 INFO L130 PetriNetUnfolder]: 315/516 cut-off events. [2023-08-30 10:55:41,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:55:41,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 516 events. 315/516 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1936 event pairs, 315 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 1058. Up to 516 conditions per place. [2023-08-30 10:55:41,256 INFO L137 encePairwiseOnDemand]: 663/666 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-30 10:55:41,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 89 flow [2023-08-30 10:55:41,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:55:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:55:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 868 transitions. [2023-08-30 10:55:41,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344344344344344 [2023-08-30 10:55:41,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 868 transitions. [2023-08-30 10:55:41,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 868 transitions. [2023-08-30 10:55:41,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:55:41,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 868 transitions. [2023-08-30 10:55:41,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 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 10:55:41,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,267 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 53 flow. Second operand 3 states and 868 transitions. [2023-08-30 10:55:41,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 89 flow [2023-08-30 10:55:41,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:55:41,268 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 50 flow [2023-08-30 10:55:41,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 10:55:41,269 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2023-08-30 10:55:41,269 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 50 flow [2023-08-30 10:55:41,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:41,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:55:41,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 10:55:41,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 10:55:41,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:55:41,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1270581, now seen corresponding path program 1 times [2023-08-30 10:55:41,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:41,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117424855] [2023-08-30 10:55:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:41,309 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 10:55:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117424855] [2023-08-30 10:55:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117424855] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:55:41,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:55:41,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:55:41,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288556427] [2023-08-30 10:55:41,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:55:41,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:55:41,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:55:41,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:55:41,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:55:41,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 666 [2023-08-30 10:55:41,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:41,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:55:41,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 666 [2023-08-30 10:55:41,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:55:41,413 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2023-08-30 10:55:41,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:55:41,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 298 events. 173/298 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 984 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 613. Up to 298 conditions per place. [2023-08-30 10:55:41,415 INFO L137 encePairwiseOnDemand]: 663/666 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-30 10:55:41,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 82 flow [2023-08-30 10:55:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:55:41,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:55:41,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 866 transitions. [2023-08-30 10:55:41,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43343343343343343 [2023-08-30 10:55:41,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 866 transitions. [2023-08-30 10:55:41,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 866 transitions. [2023-08-30 10:55:41,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:55:41,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 866 transitions. [2023-08-30 10:55:41,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 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 10:55:41,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,426 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 50 flow. Second operand 3 states and 866 transitions. [2023-08-30 10:55:41,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 82 flow [2023-08-30 10:55:41,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:55:41,427 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 47 flow [2023-08-30 10:55:41,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-30 10:55:41,428 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2023-08-30 10:55:41,428 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 47 flow [2023-08-30 10:55:41,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 10:55:41,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:55:41,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:55:41,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 10:55:41,429 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:55:41,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:41,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1220961204, now seen corresponding path program 1 times [2023-08-30 10:55:41,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:41,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372221269] [2023-08-30 10:55:41,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:41,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:41,462 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 10:55:41,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:41,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372221269] [2023-08-30 10:55:41,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372221269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:55:41,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:55:41,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:55:41,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109133078] [2023-08-30 10:55:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:55:41,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:55:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:55:41,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:55:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:55:41,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 666 [2023-08-30 10:55:41,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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 10:55:41,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:55:41,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 666 [2023-08-30 10:55:41,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:55:41,535 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2023-08-30 10:55:41,535 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:55:41,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 170 events. 93/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 466 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 353. Up to 170 conditions per place. [2023-08-30 10:55:41,536 INFO L137 encePairwiseOnDemand]: 663/666 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-30 10:55:41,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 75 flow [2023-08-30 10:55:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:55:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:55:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 864 transitions. [2023-08-30 10:55:41,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43243243243243246 [2023-08-30 10:55:41,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 864 transitions. [2023-08-30 10:55:41,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 864 transitions. [2023-08-30 10:55:41,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:55:41,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 864 transitions. [2023-08-30 10:55:41,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 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 10:55:41,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,547 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 47 flow. Second operand 3 states and 864 transitions. [2023-08-30 10:55:41,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 75 flow [2023-08-30 10:55:41,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:55:41,548 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 44 flow [2023-08-30 10:55:41,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2023-08-30 10:55:41,548 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2023-08-30 10:55:41,549 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 44 flow [2023-08-30 10:55:41,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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 10:55:41,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:55:41,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 10:55:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:55:41,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 10:55:41,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:55:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1220961282, now seen corresponding path program 1 times [2023-08-30 10:55:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:55:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596951423] [2023-08-30 10:55:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:55:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:55:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:55:41,582 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 10:55:41,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:55:41,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596951423] [2023-08-30 10:55:41,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596951423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:55:41,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:55:41,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:55:41,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447854749] [2023-08-30 10:55:41,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:55:41,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:55:41,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:55:41,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:55:41,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:55:41,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 666 [2023-08-30 10:55:41,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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 10:55:41,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:55:41,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 666 [2023-08-30 10:55:41,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:55:41,633 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-08-30 10:55:41,633 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:55:41,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 78 events. 37/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 165. Up to 78 conditions per place. [2023-08-30 10:55:41,634 INFO L137 encePairwiseOnDemand]: 663/666 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-30 10:55:41,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 14 transitions, 68 flow [2023-08-30 10:55:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:55:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:55:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 862 transitions. [2023-08-30 10:55:41,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4314314314314314 [2023-08-30 10:55:41,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 862 transitions. [2023-08-30 10:55:41,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 862 transitions. [2023-08-30 10:55:41,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:55:41,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 862 transitions. [2023-08-30 10:55:41,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 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 10:55:41,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 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 10:55:41,644 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 44 flow. Second operand 3 states and 862 transitions. [2023-08-30 10:55:41,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 14 transitions, 68 flow [2023-08-30 10:55:41,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:55:41,645 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-30 10:55:41,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-30 10:55:41,646 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -16 predicate places. [2023-08-30 10:55:41,646 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-30 10:55:41,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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 10:55:41,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-08-30 10:55:41,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-08-30 10:55:41,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-08-30 10:55:41,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-08-30 10:55:41,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-08-30 10:55:41,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-08-30 10:55:41,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-08-30 10:55:41,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-08-30 10:55:41,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-08-30 10:55:41,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-08-30 10:55:41,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-08-30 10:55:41,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-08-30 10:55:41,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-08-30 10:55:41,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-08-30 10:55:41,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-08-30 10:55:41,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-08-30 10:55:41,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-08-30 10:55:41,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-08-30 10:55:41,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2023-08-30 10:55:41,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2023-08-30 10:55:41,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2023-08-30 10:55:41,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2023-08-30 10:55:41,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2023-08-30 10:55:41,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2023-08-30 10:55:41,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-08-30 10:55:41,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-08-30 10:55:41,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-08-30 10:55:41,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-08-30 10:55:41,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-08-30 10:55:41,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-08-30 10:55:41,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-08-30 10:55:41,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-08-30 10:55:41,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-08-30 10:55:41,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-08-30 10:55:41,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-08-30 10:55:41,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-08-30 10:55:41,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-08-30 10:55:41,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-08-30 10:55:41,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-08-30 10:55:41,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 10:55:41,657 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 10:55:41,661 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:55:41,662 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:55:41,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:55:41 BasicIcfg [2023-08-30 10:55:41,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:55:41,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:55:41,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:55:41,665 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:55:41,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:55:26" (3/4) ... [2023-08-30 10:55:41,667 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 10:55:41,672 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 10:55:41,672 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 10:55:41,672 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 10:55:41,676 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 10:55:41,676 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 10:55:41,676 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 10:55:41,677 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 10:55:41,703 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:55:41,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:55:41,704 INFO L158 Benchmark]: Toolchain (without parser) took 16676.88ms. Allocated memory was 67.1MB in the beginning and 144.7MB in the end (delta: 77.6MB). Free memory was 45.1MB in the beginning and 33.8MB in the end (delta: 11.3MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2023-08-30 10:55:41,704 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 28.5MB in the beginning and 28.5MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:55:41,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.68ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 33.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 10:55:41,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.30ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 46.8MB in the end (delta: -13.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:55:41,705 INFO L158 Benchmark]: Boogie Preprocessor took 47.84ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 45.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:55:41,706 INFO L158 Benchmark]: RCFGBuilder took 609.43ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 45.3MB in the beginning and 51.5MB in the end (delta: -6.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-30 10:55:41,706 INFO L158 Benchmark]: TraceAbstraction took 15645.76ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 50.8MB in the beginning and 36.9MB in the end (delta: 13.9MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. [2023-08-30 10:55:41,706 INFO L158 Benchmark]: Witness Printer took 39.01ms. Allocated memory is still 144.7MB. Free memory was 36.9MB in the beginning and 33.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:55:41,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 28.5MB in the beginning and 28.5MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.68ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 33.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.30ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 46.8MB in the end (delta: -13.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.84ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 45.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 609.43ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 45.3MB in the beginning and 51.5MB in the end (delta: -6.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15645.76ms. Allocated memory was 81.8MB in the beginning and 144.7MB in the end (delta: 62.9MB). Free memory was 50.8MB in the beginning and 36.9MB in the end (delta: 13.9MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. * Witness Printer took 39.01ms. Allocated memory is still 144.7MB. Free memory was 36.9MB in the beginning and 33.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6s, 263 PlacesBefore, 42 PlacesAfterwards, 277 TransitionsBefore, 32 TransitionsAfterwards, 30888 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 219 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 69 ConcurrentYvCompositions, 24 ChoiceCompositions, 368 TotalNumberOfCompositions, 29557 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29557, independent: 29557, independent conditional: 0, independent unconditional: 29557, 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: 18292, independent: 18292, independent conditional: 0, independent unconditional: 18292, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29557, independent: 11265, independent conditional: 0, independent unconditional: 11265, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 18292, unknown conditional: 0, unknown unconditional: 18292] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, 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: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: 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 7 procedures, 454 locations, 39 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: 15.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 11 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 10:55:41,730 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