./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5a0c3d921e4198a2449efd49bc5373a4e6a5b0854f91282d4ef920b48af7e3c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:34:43,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:34:43,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:34:43,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:34:43,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:34:43,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:34:43,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:34:43,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:34:43,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:34:43,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:34:43,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:34:43,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:34:43,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:34:43,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:34:43,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:34:43,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:34:43,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:34:43,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:34:43,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:34:43,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:34:43,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:34:43,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:34:43,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:34:43,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:34:43,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:34:43,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:34:43,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:34:43,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:34:43,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:34:43,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:34:43,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:34:43,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:34:43,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:34:43,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:34:43,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:34:43,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:34:43,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:34:43,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:34:43,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:34:43,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:34:43,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:34:43,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:34:43,319 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:34:43,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:34:43,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:34:43,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:34:43,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:34:43,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:34:43,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:34:43,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:34:43,322 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:34:43,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:34:43,322 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:34:43,322 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:34:43,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:34:43,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:34:43,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:34:43,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:34:43,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:34:43,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:34:43,324 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:34:43,324 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:34:43,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:34:43,324 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:34:43,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:34:43,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:34:43,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:34:43,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:34:43,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:34:43,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:34:43,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:34:43,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:34:43,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:34:43,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:34:43,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:34:43,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:34:43,327 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:34:43,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:34:43,327 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:34:43,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5a0c3d921e4198a2449efd49bc5373a4e6a5b0854f91282d4ef920b48af7e3c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:34:43,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:34:43,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:34:43,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:34:43,640 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:34:43,640 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:34:43,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i [2023-08-30 09:34:44,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:34:44,969 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:34:44,970 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_04-fld_nr.i [2023-08-30 09:34:44,982 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badc00d24/74925df87ef743b1852668133b4512f8/FLAGc4202bdfa [2023-08-30 09:34:45,004 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badc00d24/74925df87ef743b1852668133b4512f8 [2023-08-30 09:34:45,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:34:45,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:34:45,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:34:45,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:34:45,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:34:45,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613e87d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45, skipping insertion in model container [2023-08-30 09:34:45,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:34:45,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:34:45,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:34:45,379 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:34:45,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:34:45,454 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:34:45,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45 WrapperNode [2023-08-30 09:34:45,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:34:45,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:34:45,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:34:45,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:34:45,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,511 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-08-30 09:34:45,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:34:45,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:34:45,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:34:45,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:34:45,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,548 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:34:45,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:34:45,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:34:45,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:34:45,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:34:45,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:34:45,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:34:45,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:34:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:34:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:34:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:34:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:34:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:34:45,627 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:34:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:34:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:34:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:34:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:34:45,629 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:34:45,801 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:34:45,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:34:45,931 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:34:45,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:34:45,936 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 09:34:45,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:45 BoogieIcfgContainer [2023-08-30 09:34:45,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:34:45,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:34:45,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:34:45,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:34:45,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:34:45" (1/3) ... [2023-08-30 09:34:45,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aed48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:34:45, skipping insertion in model container [2023-08-30 09:34:45,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (2/3) ... [2023-08-30 09:34:45,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aed48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:34:45, skipping insertion in model container [2023-08-30 09:34:45,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:45" (3/3) ... [2023-08-30 09:34:45,948 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_04-fld_nr.i [2023-08-30 09:34:45,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:34:45,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:34:45,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 09:34:45,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:34:46,033 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:34:46,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 117 flow [2023-08-30 09:34:46,102 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2023-08-30 09:34:46,102 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:46,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 55 events. 0/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 09:34:46,105 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 56 transitions, 117 flow [2023-08-30 09:34:46,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 113 flow [2023-08-30 09:34:46,111 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:34:46,121 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 55 transitions, 113 flow [2023-08-30 09:34:46,123 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 55 transitions, 113 flow [2023-08-30 09:34:46,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 113 flow [2023-08-30 09:34:46,137 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2023-08-30 09:34:46,137 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:46,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 55 events. 0/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 09:34:46,138 INFO L119 LiptonReduction]: Number of co-enabled transitions 442 [2023-08-30 09:34:47,821 INFO L134 LiptonReduction]: Checked pairs total: 969 [2023-08-30 09:34:47,822 INFO L136 LiptonReduction]: Total number of compositions: 47 [2023-08-30 09:34:47,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:34:47,840 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;@11252e51, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:34:47,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 09:34:47,844 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-30 09:34:47,844 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:47,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:47,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 09:34:47,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 09:34:47,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:47,850 INFO L85 PathProgramCache]: Analyzing trace with hash 6202726, now seen corresponding path program 1 times [2023-08-30 09:34:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:47,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111222706] [2023-08-30 09:34:47,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:47,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111222706] [2023-08-30 09:34:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111222706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:48,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279621381] [2023-08-30 09:34:48,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:48,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:48,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:48,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 103 [2023-08-30 09:34:48,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 103 [2023-08-30 09:34:48,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,296 INFO L130 PetriNetUnfolder]: 20/54 cut-off events. [2023-08-30 09:34:48,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:48,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 54 events. 20/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 136 event pairs, 10 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 104. Up to 41 conditions per place. [2023-08-30 09:34:48,299 INFO L137 encePairwiseOnDemand]: 96/103 looper letters, 13 selfloop transitions, 3 changer transitions 4/20 dead transitions. [2023-08-30 09:34:48,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 20 transitions, 83 flow [2023-08-30 09:34:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:48,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2023-08-30 09:34:48,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825242718446602 [2023-08-30 09:34:48,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2023-08-30 09:34:48,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2023-08-30 09:34:48,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2023-08-30 09:34:48,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,333 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 3 states and 180 transitions. [2023-08-30 09:34:48,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 20 transitions, 83 flow [2023-08-30 09:34:48,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:48,338 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 47 flow [2023-08-30 09:34:48,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-30 09:34:48,343 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-08-30 09:34:48,343 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 47 flow [2023-08-30 09:34:48,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:34:48,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 09:34:48,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash 123528440, now seen corresponding path program 1 times [2023-08-30 09:34:48,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167948455] [2023-08-30 09:34:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167948455] [2023-08-30 09:34:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167948455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547908081] [2023-08-30 09:34:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:48,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:48,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:48,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 103 [2023-08-30 09:34:48,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 103 [2023-08-30 09:34:48,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,603 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2023-08-30 09:34:48,604 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:48,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 0 based on Foata normal form. 6/22 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-08-30 09:34:48,604 INFO L137 encePairwiseOnDemand]: 99/103 looper letters, 10 selfloop transitions, 4 changer transitions 0/14 dead transitions. [2023-08-30 09:34:48,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 75 flow [2023-08-30 09:34:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2023-08-30 09:34:48,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5275080906148867 [2023-08-30 09:34:48,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 163 transitions. [2023-08-30 09:34:48,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 163 transitions. [2023-08-30 09:34:48,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 163 transitions. [2023-08-30 09:34:48,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,608 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 47 flow. Second operand 3 states and 163 transitions. [2023-08-30 09:34:48,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 75 flow [2023-08-30 09:34:48,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:48,609 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 52 flow [2023-08-30 09:34:48,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-08-30 09:34:48,610 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2023-08-30 09:34:48,610 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 52 flow [2023-08-30 09:34:48,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:34:48,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 09:34:48,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash -455201557, now seen corresponding path program 1 times [2023-08-30 09:34:48,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72264295] [2023-08-30 09:34:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72264295] [2023-08-30 09:34:48,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72264295] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519047799] [2023-08-30 09:34:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:48,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:48,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 103 [2023-08-30 09:34:48,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 103 [2023-08-30 09:34:48,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,750 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2023-08-30 09:34:48,751 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:48,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-30 09:34:48,751 INFO L137 encePairwiseOnDemand]: 96/103 looper letters, 9 selfloop transitions, 6 changer transitions 2/17 dead transitions. [2023-08-30 09:34:48,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 94 flow [2023-08-30 09:34:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:34:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:34:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 300 transitions. [2023-08-30 09:34:48,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4854368932038835 [2023-08-30 09:34:48,754 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 300 transitions. [2023-08-30 09:34:48,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 300 transitions. [2023-08-30 09:34:48,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 300 transitions. [2023-08-30 09:34:48,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,758 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 52 flow. Second operand 6 states and 300 transitions. [2023-08-30 09:34:48,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 94 flow [2023-08-30 09:34:48,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:48,759 INFO L231 Difference]: Finished difference. Result has 24 places, 13 transitions, 56 flow [2023-08-30 09:34:48,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=13} [2023-08-30 09:34:48,760 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-08-30 09:34:48,761 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 13 transitions, 56 flow [2023-08-30 09:34:48,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 09:34:48,762 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 09:34:48,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1135069863, now seen corresponding path program 1 times [2023-08-30 09:34:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169083487] [2023-08-30 09:34:48,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169083487] [2023-08-30 09:34:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169083487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:48,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489889843] [2023-08-30 09:34:48,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:48,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:48,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:48,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 103 [2023-08-30 09:34:48,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 13 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 103 [2023-08-30 09:34:48,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,895 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 09:34:48,895 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:34:48,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-30 09:34:48,897 INFO L137 encePairwiseOnDemand]: 96/103 looper letters, 8 selfloop transitions, 6 changer transitions 1/15 dead transitions. [2023-08-30 09:34:48,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 90 flow [2023-08-30 09:34:48,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:34:48,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:34:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 304 transitions. [2023-08-30 09:34:48,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4919093851132686 [2023-08-30 09:34:48,902 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 304 transitions. [2023-08-30 09:34:48,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 304 transitions. [2023-08-30 09:34:48,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 304 transitions. [2023-08-30 09:34:48,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,910 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,910 INFO L175 Difference]: Start difference. First operand has 24 places, 13 transitions, 56 flow. Second operand 6 states and 304 transitions. [2023-08-30 09:34:48,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 90 flow [2023-08-30 09:34:48,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 15 transitions, 81 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-30 09:34:48,912 INFO L231 Difference]: Finished difference. Result has 25 places, 12 transitions, 55 flow [2023-08-30 09:34:48,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=55, PETRI_PLACES=25, PETRI_TRANSITIONS=12} [2023-08-30 09:34:48,913 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2023-08-30 09:34:48,914 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 12 transitions, 55 flow [2023-08-30 09:34:48,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:34:48,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 09:34:48,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1135069862, now seen corresponding path program 1 times [2023-08-30 09:34:48,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023658316] [2023-08-30 09:34:48,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023658316] [2023-08-30 09:34:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023658316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244617573] [2023-08-30 09:34:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:48,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:49,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 103 [2023-08-30 09:34:49,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 12 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:49,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 103 [2023-08-30 09:34:49,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:49,042 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-30 09:34:49,042 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:34:49,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 13 events. 0/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-30 09:34:49,043 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 6 selfloop transitions, 2 changer transitions 5/13 dead transitions. [2023-08-30 09:34:49,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 83 flow [2023-08-30 09:34:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:34:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:34:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 302 transitions. [2023-08-30 09:34:49,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4886731391585761 [2023-08-30 09:34:49,044 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 302 transitions. [2023-08-30 09:34:49,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 302 transitions. [2023-08-30 09:34:49,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:49,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 302 transitions. [2023-08-30 09:34:49,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,048 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,048 INFO L175 Difference]: Start difference. First operand has 25 places, 12 transitions, 55 flow. Second operand 6 states and 302 transitions. [2023-08-30 09:34:49,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 83 flow [2023-08-30 09:34:49,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 13 transitions, 72 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 09:34:49,049 INFO L231 Difference]: Finished difference. Result has 25 places, 8 transitions, 34 flow [2023-08-30 09:34:49,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=34, PETRI_PLACES=25, PETRI_TRANSITIONS=8} [2023-08-30 09:34:49,050 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2023-08-30 09:34:49,050 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 8 transitions, 34 flow [2023-08-30 09:34:49,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:49,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:49,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:34:49,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 09:34:49,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:49,051 INFO L85 PathProgramCache]: Analyzing trace with hash -455201542, now seen corresponding path program 1 times [2023-08-30 09:34:49,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:49,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198012473] [2023-08-30 09:34:49,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:49,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:49,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:49,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198012473] [2023-08-30 09:34:49,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198012473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:49,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:49,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:49,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408665993] [2023-08-30 09:34:49,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:49,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:49,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:49,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:49,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:49,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 103 [2023-08-30 09:34:49,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 8 transitions, 34 flow. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:49,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 103 [2023-08-30 09:34:49,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:49,149 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 09:34:49,149 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:34:49,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 8 events. 0/8 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-30 09:34:49,149 INFO L137 encePairwiseOnDemand]: 98/103 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-08-30 09:34:49,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 8 transitions, 49 flow [2023-08-30 09:34:49,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:34:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:34:49,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 291 transitions. [2023-08-30 09:34:49,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470873786407767 [2023-08-30 09:34:49,151 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 291 transitions. [2023-08-30 09:34:49,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 291 transitions. [2023-08-30 09:34:49,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:49,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 291 transitions. [2023-08-30 09:34:49,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 48.5) internal successors, (291), 6 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,154 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,154 INFO L175 Difference]: Start difference. First operand has 25 places, 8 transitions, 34 flow. Second operand 6 states and 291 transitions. [2023-08-30 09:34:49,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 8 transitions, 49 flow [2023-08-30 09:34:49,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 8 transitions, 39 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 09:34:49,155 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-08-30 09:34:49,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-08-30 09:34:49,156 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -1 predicate places. [2023-08-30 09:34:49,156 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-08-30 09:34:49,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-30 09:34:49,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-30 09:34:49,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-30 09:34:49,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-30 09:34:49,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-30 09:34:49,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-30 09:34:49,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-30 09:34:49,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:34:49,160 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 09:34:49,164 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:34:49,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:34:49,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:34:49 BasicIcfg [2023-08-30 09:34:49,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:34:49,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:34:49,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:34:49,168 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:34:49,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:45" (3/4) ... [2023-08-30 09:34:49,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:34:49,175 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:34:49,178 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 09:34:49,179 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 09:34:49,179 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:34:49,209 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:34:49,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:34:49,212 INFO L158 Benchmark]: Toolchain (without parser) took 4199.36ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 41.8MB in the beginning and 52.1MB in the end (delta: -10.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,212 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:34:49,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.35ms. Allocated memory is still 73.4MB. Free memory was 41.6MB in the beginning and 40.4MB in the end (delta: 1.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.53ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 38.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,212 INFO L158 Benchmark]: Boogie Preprocessor took 44.38ms. Allocated memory is still 73.4MB. Free memory was 38.4MB in the beginning and 37.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,213 INFO L158 Benchmark]: RCFGBuilder took 380.78ms. Allocated memory is still 73.4MB. Free memory was 37.0MB in the beginning and 48.5MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,213 INFO L158 Benchmark]: TraceAbstraction took 3227.59ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 47.7MB in the beginning and 54.2MB in the end (delta: -6.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,213 INFO L158 Benchmark]: Witness Printer took 41.03ms. Allocated memory is still 88.1MB. Free memory was 54.2MB in the beginning and 52.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.35ms. Allocated memory is still 73.4MB. Free memory was 41.6MB in the beginning and 40.4MB in the end (delta: 1.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.53ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 38.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.38ms. Allocated memory is still 73.4MB. Free memory was 38.4MB in the beginning and 37.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.78ms. Allocated memory is still 73.4MB. Free memory was 37.0MB in the beginning and 48.5MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3227.59ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 47.7MB in the beginning and 54.2MB in the end (delta: -6.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 41.03ms. Allocated memory is still 88.1MB. Free memory was 54.2MB in the beginning and 52.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 59 PlacesBefore, 18 PlacesAfterwards, 55 TransitionsBefore, 14 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, 969 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 583, independent: 477, independent conditional: 0, independent unconditional: 477, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 583, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 686]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 686]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 72 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 22 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:34:49,237 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