./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.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 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:09:21,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:09:21,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:09:21,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:09:21,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:09:21,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:09:21,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:09:21,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:09:21,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:09:21,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:09:21,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:09:21,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:09:21,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:09:21,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:09:21,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:09:21,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:09:21,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:09:21,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:09:21,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:09:21,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:09:21,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:09:21,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:09:21,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:09:21,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:09:21,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:09:21,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:09:21,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:09:21,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:09:21,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:09:21,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:09:21,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:09:21,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:09:21,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:09:21,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:09:21,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:09:21,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:09:21,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:09:21,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:09:21,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:09:21,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:09:21,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:09:21,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:09:21,262 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:09:21,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:09:21,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:09:21,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:09:21,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:09:21,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:09:21,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:09:21,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:09:21,266 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:09:21,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:09:21,267 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:09:21,267 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:09:21,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:09:21,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:09:21,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:09:21,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:09:21,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:09:21,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:09:21,268 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:09:21,269 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:09:21,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:09:21,269 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:09:21,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:09:21,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:09:21,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:09:21,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:09:21,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:09:21,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:09:21,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:09:21,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:09:21,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:09:21,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:09:21,271 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:09:21,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:09:21,271 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:09:21,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:09:21,272 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:09:21,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:09:21,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:09:21,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:09:21,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:09:21,686 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:09:21,692 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:09:21,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-09-01 06:09:23,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:09:23,537 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:09:23,537 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-09-01 06:09:23,554 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de26e1594/d63d6360ca504e978266c3b9be7e1e42/FLAGc3f37555a [2023-09-01 06:09:23,586 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de26e1594/d63d6360ca504e978266c3b9be7e1e42 [2023-09-01 06:09:23,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:09:23,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:09:23,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:09:23,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:09:23,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:09:23,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:09:23" (1/1) ... [2023-09-01 06:09:23,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7b5e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:23, skipping insertion in model container [2023-09-01 06:09:23,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:09:23" (1/1) ... [2023-09-01 06:09:23,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:09:23,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:09:23,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:09:23,997 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:09:24,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:09:24,122 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:09:24,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24 WrapperNode [2023-09-01 06:09:24,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:09:24,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:09:24,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:09:24,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:09:24,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,185 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-09-01 06:09:24,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:09:24,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:09:24,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:09:24,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:09:24,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:09:24,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:09:24,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:09:24,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:09:24,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (1/1) ... [2023-09-01 06:09:24,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:09:24,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:09:24,273 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) [2023-09-01 06:09:24,297 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 [2023-09-01 06:09:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:09:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:09:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:09:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:09:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:09:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:09:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:09:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:09:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-09-01 06:09:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:09:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:09:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:09:24,314 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:09:24,486 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:09:24,502 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:09:24,701 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:09:24,711 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:09:24,712 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-09-01 06:09:24,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:09:24 BoogieIcfgContainer [2023-09-01 06:09:24,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:09:24,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:09:24,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:09:24,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:09:24,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:09:23" (1/3) ... [2023-09-01 06:09:24,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b52a6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:09:24, skipping insertion in model container [2023-09-01 06:09:24,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:09:24" (2/3) ... [2023-09-01 06:09:24,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b52a6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:09:24, skipping insertion in model container [2023-09-01 06:09:24,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:09:24" (3/3) ... [2023-09-01 06:09:24,722 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2023-09-01 06:09:24,730 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:09:24,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:09:24,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 06:09:24,738 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:09:24,822 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 06:09:24,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 164 flow [2023-09-01 06:09:24,916 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2023-09-01 06:09:24,916 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:09:24,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 2/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-09-01 06:09:24,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 164 flow [2023-09-01 06:09:24,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 70 transitions, 143 flow [2023-09-01 06:09:24,931 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:09:24,945 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 143 flow [2023-09-01 06:09:24,949 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 143 flow [2023-09-01 06:09:24,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 143 flow [2023-09-01 06:09:24,988 INFO L130 PetriNetUnfolder]: 2/70 cut-off events. [2023-09-01 06:09:24,988 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:09:24,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-09-01 06:09:24,990 INFO L119 LiptonReduction]: Number of co-enabled transitions 966 [2023-09-01 06:09:27,110 INFO L134 LiptonReduction]: Checked pairs total: 3010 [2023-09-01 06:09:27,111 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-09-01 06:09:27,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:09:27,129 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;@34daa876, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:09:27,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-09-01 06:09:27,133 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 06:09:27,133 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:09:27,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:27,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:09:27,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:27,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash 8380606, now seen corresponding path program 1 times [2023-09-01 06:09:27,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:27,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067259903] [2023-09-01 06:09:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:27,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:27,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067259903] [2023-09-01 06:09:27,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067259903] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:27,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:27,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:09:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093209873] [2023-09-01 06:09:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:27,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:09:27,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:09:27,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:09:27,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 132 [2023-09-01 06:09:27,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-09-01 06:09:27,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:27,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 132 [2023-09-01 06:09:27,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:27,731 INFO L130 PetriNetUnfolder]: 59/152 cut-off events. [2023-09-01 06:09:27,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:09:27,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 152 events. 59/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 598 event pairs, 20 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 275. Up to 101 conditions per place. [2023-09-01 06:09:27,738 INFO L137 encePairwiseOnDemand]: 127/132 looper letters, 25 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-09-01 06:09:27,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 34 transitions, 127 flow [2023-09-01 06:09:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:09:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:09:27,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2023-09-01 06:09:27,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2023-09-01 06:09:27,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 246 transitions. [2023-09-01 06:09:27,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 246 transitions. [2023-09-01 06:09:27,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:27,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 246 transitions. [2023-09-01 06:09:27,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-09-01 06:09:27,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:27,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:27,774 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 53 flow. Second operand 3 states and 246 transitions. [2023-09-01 06:09:27,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 34 transitions, 127 flow [2023-09-01 06:09:27,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:09:27,779 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 73 flow [2023-09-01 06:09:27,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-09-01 06:09:27,786 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-09-01 06:09:27,786 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 73 flow [2023-09-01 06:09:27,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2023-09-01 06:09:27,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:27,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 06:09:27,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:09:27,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:27,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:27,798 INFO L85 PathProgramCache]: Analyzing trace with hash 259825268, now seen corresponding path program 1 times [2023-09-01 06:09:27,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:27,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471491456] [2023-09-01 06:09:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:27,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:27,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471491456] [2023-09-01 06:09:27,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471491456] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:27,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:27,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:09:27,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933842991] [2023-09-01 06:09:27,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:27,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:09:27,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:27,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:09:27,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:09:27,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 132 [2023-09-01 06:09:27,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-09-01 06:09:27,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:27,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 132 [2023-09-01 06:09:27,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:27,986 INFO L130 PetriNetUnfolder]: 42/111 cut-off events. [2023-09-01 06:09:27,986 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-09-01 06:09:27,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 111 events. 42/111 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 382 event pairs, 23 based on Foata normal form. 9/109 useless extension candidates. Maximal degree in co-relation 223. Up to 63 conditions per place. [2023-09-01 06:09:27,989 INFO L137 encePairwiseOnDemand]: 126/132 looper letters, 21 selfloop transitions, 2 changer transitions 3/31 dead transitions. [2023-09-01 06:09:27,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 131 flow [2023-09-01 06:09:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:09:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:09:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2023-09-01 06:09:27,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6085858585858586 [2023-09-01 06:09:27,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2023-09-01 06:09:27,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2023-09-01 06:09:27,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:27,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2023-09-01 06:09:27,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2023-09-01 06:09:27,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:27,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:27,999 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 73 flow. Second operand 3 states and 241 transitions. [2023-09-01 06:09:27,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 131 flow [2023-09-01 06:09:28,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:09:28,001 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 68 flow [2023-09-01 06:09:28,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2023-09-01 06:09:28,002 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2023-09-01 06:09:28,002 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 68 flow [2023-09-01 06:09:28,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-09-01 06:09:28,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:28,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:28,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:09:28,003 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:28,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:28,006 INFO L85 PathProgramCache]: Analyzing trace with hash 297195388, now seen corresponding path program 1 times [2023-09-01 06:09:28,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:28,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980128221] [2023-09-01 06:09:28,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:28,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980128221] [2023-09-01 06:09:28,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980128221] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:28,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:28,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:09:28,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427896831] [2023-09-01 06:09:28,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:28,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:09:28,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:28,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:09:28,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:09:28,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 132 [2023-09-01 06:09:28,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-09-01 06:09:28,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:28,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 132 [2023-09-01 06:09:28,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:28,237 INFO L130 PetriNetUnfolder]: 21/85 cut-off events. [2023-09-01 06:09:28,239 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-09-01 06:09:28,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 85 events. 21/85 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 321 event pairs, 4 based on Foata normal form. 9/85 useless extension candidates. Maximal degree in co-relation 174. Up to 40 conditions per place. [2023-09-01 06:09:28,240 INFO L137 encePairwiseOnDemand]: 124/132 looper letters, 19 selfloop transitions, 8 changer transitions 1/33 dead transitions. [2023-09-01 06:09:28,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 151 flow [2023-09-01 06:09:28,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:09:28,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:09:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-09-01 06:09:28,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5782828282828283 [2023-09-01 06:09:28,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-09-01 06:09:28,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-09-01 06:09:28,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:28,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-09-01 06:09:28,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-09-01 06:09:28,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:28,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:28,261 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 68 flow. Second operand 3 states and 229 transitions. [2023-09-01 06:09:28,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 151 flow [2023-09-01 06:09:28,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 33 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:09:28,263 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 100 flow [2023-09-01 06:09:28,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-09-01 06:09:28,264 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2023-09-01 06:09:28,267 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 100 flow [2023-09-01 06:09:28,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-09-01 06:09:28,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:28,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:28,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:09:28,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:28,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1423384579, now seen corresponding path program 1 times [2023-09-01 06:09:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:28,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119217275] [2023-09-01 06:09:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:28,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:28,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119217275] [2023-09-01 06:09:28,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119217275] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:28,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:28,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:09:28,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357050633] [2023-09-01 06:09:28,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:28,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:09:28,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:28,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:09:28,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:09:28,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2023-09-01 06:09:28,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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) [2023-09-01 06:09:28,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:28,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2023-09-01 06:09:28,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:28,712 INFO L130 PetriNetUnfolder]: 22/81 cut-off events. [2023-09-01 06:09:28,713 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-09-01 06:09:28,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 81 events. 22/81 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 260 event pairs, 9 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 216. Up to 32 conditions per place. [2023-09-01 06:09:28,718 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 24 selfloop transitions, 3 changer transitions 1/32 dead transitions. [2023-09-01 06:09:28,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 178 flow [2023-09-01 06:09:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:09:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:09:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2023-09-01 06:09:28,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394 [2023-09-01 06:09:28,720 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 298 transitions. [2023-09-01 06:09:28,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 298 transitions. [2023-09-01 06:09:28,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:28,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 298 transitions. [2023-09-01 06:09:28,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2023-09-01 06:09:28,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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) [2023-09-01 06:09:28,727 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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) [2023-09-01 06:09:28,727 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 100 flow. Second operand 4 states and 298 transitions. [2023-09-01 06:09:28,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 178 flow [2023-09-01 06:09:28,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:09:28,730 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 94 flow [2023-09-01 06:09:28,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-09-01 06:09:28,731 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2023-09-01 06:09:28,732 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 94 flow [2023-09-01 06:09:28,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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) [2023-09-01 06:09:28,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:28,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:28,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:09:28,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:28,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:28,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1423384559, now seen corresponding path program 1 times [2023-09-01 06:09:28,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:28,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933703147] [2023-09-01 06:09:28,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:28,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:28,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:28,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933703147] [2023-09-01 06:09:28,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933703147] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:28,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:28,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:09:28,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921300971] [2023-09-01 06:09:28,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:28,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:09:28,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:28,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:09:28,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 06:09:28,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2023-09-01 06:09:28,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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) [2023-09-01 06:09:28,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:28,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2023-09-01 06:09:28,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:28,870 INFO L130 PetriNetUnfolder]: 21/79 cut-off events. [2023-09-01 06:09:28,871 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-09-01 06:09:28,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 79 events. 21/79 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 256 event pairs, 6 based on Foata normal form. 3/76 useless extension candidates. Maximal degree in co-relation 196. Up to 32 conditions per place. [2023-09-01 06:09:28,873 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 23 selfloop transitions, 3 changer transitions 5/34 dead transitions. [2023-09-01 06:09:28,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 34 transitions, 182 flow [2023-09-01 06:09:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:09:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:09:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2023-09-01 06:09:28,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2023-09-01 06:09:28,875 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 300 transitions. [2023-09-01 06:09:28,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 300 transitions. [2023-09-01 06:09:28,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:28,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 300 transitions. [2023-09-01 06:09:28,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.0) internal successors, (300), 4 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) [2023-09-01 06:09:28,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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) [2023-09-01 06:09:28,878 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 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) [2023-09-01 06:09:28,878 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 94 flow. Second operand 4 states and 300 transitions. [2023-09-01 06:09:28,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 34 transitions, 182 flow [2023-09-01 06:09:28,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:09:28,880 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 72 flow [2023-09-01 06:09:28,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-09-01 06:09:28,882 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2023-09-01 06:09:28,883 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 72 flow [2023-09-01 06:09:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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) [2023-09-01 06:09:28,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:28,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:28,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:09:28,884 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:28,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash 315789950, now seen corresponding path program 1 times [2023-09-01 06:09:28,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:28,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377047806] [2023-09-01 06:09:28,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:28,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:29,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:29,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377047806] [2023-09-01 06:09:29,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377047806] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:29,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:29,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:09:29,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440840576] [2023-09-01 06:09:29,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:29,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:09:29,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:29,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:09:29,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:09:29,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2023-09-01 06:09:29,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 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) [2023-09-01 06:09:29,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:29,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2023-09-01 06:09:29,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:29,103 INFO L130 PetriNetUnfolder]: 19/63 cut-off events. [2023-09-01 06:09:29,103 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-09-01 06:09:29,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 63 events. 19/63 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 2 based on Foata normal form. 3/60 useless extension candidates. Maximal degree in co-relation 155. Up to 27 conditions per place. [2023-09-01 06:09:29,104 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 23 selfloop transitions, 3 changer transitions 1/29 dead transitions. [2023-09-01 06:09:29,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 152 flow [2023-09-01 06:09:29,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:09:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:09:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 360 transitions. [2023-09-01 06:09:29,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2023-09-01 06:09:29,106 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 360 transitions. [2023-09-01 06:09:29,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 360 transitions. [2023-09-01 06:09:29,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:29,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 360 transitions. [2023-09-01 06:09:29,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2023-09-01 06:09:29,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 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) [2023-09-01 06:09:29,110 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 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) [2023-09-01 06:09:29,110 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 72 flow. Second operand 5 states and 360 transitions. [2023-09-01 06:09:29,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 152 flow [2023-09-01 06:09:29,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 144 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:09:29,112 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 64 flow [2023-09-01 06:09:29,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=64, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-09-01 06:09:29,113 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-09-01 06:09:29,113 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 64 flow [2023-09-01 06:09:29,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 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) [2023-09-01 06:09:29,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:29,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:29,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:09:29,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:29,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash 973057176, now seen corresponding path program 1 times [2023-09-01 06:09:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:29,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613442611] [2023-09-01 06:09:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:29,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:29,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:29,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613442611] [2023-09-01 06:09:29,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613442611] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:29,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:29,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:09:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149374443] [2023-09-01 06:09:29,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:29,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:09:29,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:29,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:09:29,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:09:29,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 132 [2023-09-01 06:09:29,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2023-09-01 06:09:29,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:29,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 132 [2023-09-01 06:09:29,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:29,249 INFO L130 PetriNetUnfolder]: 22/73 cut-off events. [2023-09-01 06:09:29,249 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-09-01 06:09:29,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 73 events. 22/73 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 189 event pairs, 4 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 188. Up to 44 conditions per place. [2023-09-01 06:09:29,250 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 18 selfloop transitions, 5 changer transitions 0/25 dead transitions. [2023-09-01 06:09:29,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 137 flow [2023-09-01 06:09:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:09:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:09:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2023-09-01 06:09:29,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707070707070707 [2023-09-01 06:09:29,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2023-09-01 06:09:29,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2023-09-01 06:09:29,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:29,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2023-09-01 06:09:29,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2023-09-01 06:09:29,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:29,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2023-09-01 06:09:29,254 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 64 flow. Second operand 3 states and 226 transitions. [2023-09-01 06:09:29,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 137 flow [2023-09-01 06:09:29,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 131 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:09:29,256 INFO L231 Difference]: Finished difference. Result has 25 places, 21 transitions, 92 flow [2023-09-01 06:09:29,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=25, PETRI_TRANSITIONS=21} [2023-09-01 06:09:29,257 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-09-01 06:09:29,257 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 92 flow [2023-09-01 06:09:29,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2023-09-01 06:09:29,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:09:29,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:29,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:09:29,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-09-01 06:09:29,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:09:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2139255142, now seen corresponding path program 1 times [2023-09-01 06:09:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:09:29,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684283889] [2023-09-01 06:09:29,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:09:29,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:09:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:09:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:09:29,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:09:29,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684283889] [2023-09-01 06:09:29,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684283889] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:09:29,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:09:29,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:09:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705685010] [2023-09-01 06:09:29,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:09:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:09:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:09:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:09:29,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:09:29,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 132 [2023-09-01 06:09:29,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2023-09-01 06:09:29,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:09:29,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 132 [2023-09-01 06:09:29,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:09:29,545 INFO L130 PetriNetUnfolder]: 22/70 cut-off events. [2023-09-01 06:09:29,545 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-09-01 06:09:29,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 70 events. 22/70 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 171 event pairs, 1 based on Foata normal form. 4/74 useless extension candidates. Maximal degree in co-relation 208. Up to 32 conditions per place. [2023-09-01 06:09:29,546 INFO L137 encePairwiseOnDemand]: 128/132 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2023-09-01 06:09:29,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 31 transitions, 195 flow [2023-09-01 06:09:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:09:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:09:29,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 359 transitions. [2023-09-01 06:09:29,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543939393939394 [2023-09-01 06:09:29,548 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 359 transitions. [2023-09-01 06:09:29,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 359 transitions. [2023-09-01 06:09:29,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:09:29,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 359 transitions. [2023-09-01 06:09:29,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2023-09-01 06:09:29,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 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) [2023-09-01 06:09:29,557 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 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) [2023-09-01 06:09:29,557 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 92 flow. Second operand 5 states and 359 transitions. [2023-09-01 06:09:29,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 31 transitions, 195 flow [2023-09-01 06:09:29,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 31 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:09:29,558 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-09-01 06:09:29,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-09-01 06:09:29,559 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-09-01 06:09:29,559 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-09-01 06:09:29,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 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) [2023-09-01 06:09:29,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-09-01 06:09:29,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-09-01 06:09:29,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-09-01 06:09:29,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-09-01 06:09:29,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2023-09-01 06:09:29,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2023-09-01 06:09:29,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2023-09-01 06:09:29,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-09-01 06:09:29,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-09-01 06:09:29,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-09-01 06:09:29,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-09-01 06:09:29,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 06:09:29,573 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:09:29,581 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:09:29,582 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:09:29,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:09:29 BasicIcfg [2023-09-01 06:09:29,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:09:29,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:09:29,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:09:29,590 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:09:29,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:09:24" (3/4) ... [2023-09-01 06:09:29,593 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:09:29,614 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:09:29,618 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 06:09:29,619 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 06:09:29,619 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:09:29,669 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:09:29,669 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:09:29,670 INFO L158 Benchmark]: Toolchain (without parser) took 6079.97ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 44.0MB in the beginning and 72.8MB in the end (delta: -28.9MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-09-01 06:09:29,670 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 56.6MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:09:29,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.74ms. Allocated memory is still 69.2MB. Free memory was 43.8MB in the beginning and 41.4MB in the end (delta: 2.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-09-01 06:09:29,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.30ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 39.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:09:29,671 INFO L158 Benchmark]: Boogie Preprocessor took 50.66ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:09:29,671 INFO L158 Benchmark]: RCFGBuilder took 475.76ms. Allocated memory is still 69.2MB. Free memory was 38.0MB in the beginning and 42.4MB in the end (delta: -4.4MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-09-01 06:09:29,671 INFO L158 Benchmark]: TraceAbstraction took 4872.99ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 41.8MB in the beginning and 74.9MB in the end (delta: -33.2MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2023-09-01 06:09:29,672 INFO L158 Benchmark]: Witness Printer took 79.45ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:09:29,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 56.6MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.74ms. Allocated memory is still 69.2MB. Free memory was 43.8MB in the beginning and 41.4MB in the end (delta: 2.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.30ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 39.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.66ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.76ms. Allocated memory is still 69.2MB. Free memory was 38.0MB in the beginning and 42.4MB in the end (delta: -4.4MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4872.99ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 41.8MB in the beginning and 74.9MB in the end (delta: -33.2MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 79.45ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 72 PlacesBefore, 28 PlacesAfterwards, 70 TransitionsBefore, 25 TransitionsAfterwards, 966 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 3010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1150, independent: 962, independent conditional: 0, independent unconditional: 962, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 508, independent: 464, independent conditional: 0, independent unconditional: 464, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1150, independent: 498, independent conditional: 0, independent unconditional: 498, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 508, unknown conditional: 0, unknown unconditional: 508] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 684]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: 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, 102 locations, 11 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: 4.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 279 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 453 IncrementalHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 20 mSDtfsCounter, 453 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred 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, 0.9s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:09:29,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE