./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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_07-ps_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:45:31,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:45:31,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:45:31,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:45:31,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:45:31,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:45:31,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:45:31,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:45:31,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:45:31,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:45:31,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:45:31,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:45:31,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:45:31,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:45:31,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:45:31,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:45:31,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:45:31,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:45:31,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:45:31,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:45:31,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:45:31,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:45:31,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:45:31,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:45:31,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:45:31,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:45:31,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:45:31,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:45:31,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:45:31,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:45:31,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:45:31,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:45:31,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:45:31,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:45:31,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:45:31,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:45:31,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:45:31,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:45:31,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:45:31,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:45:31,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:45:31,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:45:31,396 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:45:31,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:45:31,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:45:31,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:45:31,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:45:31,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:45:31,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:45:31,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:45:31,400 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:45:31,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:45:31,401 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:45:31,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:45:31,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:45:31,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:45:31,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:45:31,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:45:31,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:45:31,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:45:31,403 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:45:31,403 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:45:31,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:45:31,403 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:45:31,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:45:31,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:45:31,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:45:31,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:45:31,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:45:31,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:45:31,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:45:31,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:45:31,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:45:31,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:45:31,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:45:31,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:45:31,406 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:45:31,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:45:31,406 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:45:31,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:45:31,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:45:31,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:45:31,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:45:31,731 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:45:31,732 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:45:31,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-30 13:45:32,791 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:45:33,071 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:45:33,071 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-30 13:45:33,087 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a9769fd1/9b61f8dc21ac4a2ab6288abbc227fcb2/FLAG4cb2ca4a9 [2023-08-30 13:45:33,102 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a9769fd1/9b61f8dc21ac4a2ab6288abbc227fcb2 [2023-08-30 13:45:33,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:45:33,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:45:33,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:45:33,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:45:33,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:45:33,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53372cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33, skipping insertion in model container [2023-08-30 13:45:33,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:45:33,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:45:33,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:45:33,634 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:45:33,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:45:33,794 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:45:33,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33 WrapperNode [2023-08-30 13:45:33,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:45:33,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:45:33,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:45:33,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:45:33,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,861 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-08-30 13:45:33,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:45:33,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:45:33,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:45:33,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:45:33,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:45:33,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:45:33,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:45:33,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:45:33,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (1/1) ... [2023-08-30 13:45:33,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:45:33,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:45:33,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:45:33,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:45:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:45:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:45:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:45:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:45:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:45:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 13:45:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 13:45:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:45:33,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:45:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:45:33,983 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:45:34,091 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:45:34,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:45:34,253 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:45:34,258 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:45:34,258 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:45:34,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:34 BoogieIcfgContainer [2023-08-30 13:45:34,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:45:34,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:45:34,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:45:34,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:45:34,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:45:33" (1/3) ... [2023-08-30 13:45:34,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a97e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:45:34, skipping insertion in model container [2023-08-30 13:45:34,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:33" (2/3) ... [2023-08-30 13:45:34,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a97e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:45:34, skipping insertion in model container [2023-08-30 13:45:34,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:34" (3/3) ... [2023-08-30 13:45:34,266 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2023-08-30 13:45:34,273 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:45:34,281 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:45:34,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 13:45:34,282 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:45:34,328 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:45:34,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 129 flow [2023-08-30 13:45:34,387 INFO L130 PetriNetUnfolder]: 3/61 cut-off events. [2023-08-30 13:45:34,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:34,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-30 13:45:34,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 129 flow [2023-08-30 13:45:34,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 61 transitions, 125 flow [2023-08-30 13:45:34,397 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:45:34,404 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 61 transitions, 125 flow [2023-08-30 13:45:34,406 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 61 transitions, 125 flow [2023-08-30 13:45:34,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 61 transitions, 125 flow [2023-08-30 13:45:34,420 INFO L130 PetriNetUnfolder]: 3/61 cut-off events. [2023-08-30 13:45:34,421 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:34,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-08-30 13:45:34,422 INFO L119 LiptonReduction]: Number of co-enabled transitions 676 [2023-08-30 13:45:36,122 INFO L134 LiptonReduction]: Checked pairs total: 1239 [2023-08-30 13:45:36,123 INFO L136 LiptonReduction]: Total number of compositions: 60 [2023-08-30 13:45:36,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:45:36,144 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;@3da47bee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:45:36,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 13:45:36,148 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:45:36,148 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:36,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:36,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:45:36,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:36,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash 7328999, now seen corresponding path program 1 times [2023-08-30 13:45:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:36,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574669064] [2023-08-30 13:45:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:36,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:36,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:36,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574669064] [2023-08-30 13:45:36,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574669064] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:36,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:36,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:45:36,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430734261] [2023-08-30 13:45:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:36,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:45:36,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:36,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:45:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:45:36,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 122 [2023-08-30 13:45:36,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:36,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 122 [2023-08-30 13:45:36,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:36,600 INFO L130 PetriNetUnfolder]: 28/68 cut-off events. [2023-08-30 13:45:36,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:36,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 68 events. 28/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 200 event pairs, 12 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 132. Up to 45 conditions per place. [2023-08-30 13:45:36,605 INFO L137 encePairwiseOnDemand]: 115/122 looper letters, 13 selfloop transitions, 3 changer transitions 7/23 dead transitions. [2023-08-30 13:45:36,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 23 transitions, 95 flow [2023-08-30 13:45:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:45:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:45:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2023-08-30 13:45:36,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5491803278688525 [2023-08-30 13:45:36,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2023-08-30 13:45:36,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2023-08-30 13:45:36,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:36,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2023-08-30 13:45:36,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,639 INFO L175 Difference]: Start difference. First operand has 18 places, 15 transitions, 33 flow. Second operand 3 states and 201 transitions. [2023-08-30 13:45:36,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 23 transitions, 95 flow [2023-08-30 13:45:36,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 23 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:45:36,653 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 47 flow [2023-08-30 13:45:36,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-30 13:45:36,658 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-08-30 13:45:36,659 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 47 flow [2023-08-30 13:45:36,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:36,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:36,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:45:36,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:36,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:36,662 INFO L85 PathProgramCache]: Analyzing trace with hash -667160091, now seen corresponding path program 1 times [2023-08-30 13:45:36,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:36,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933408215] [2023-08-30 13:45:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:36,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:36,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:36,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933408215] [2023-08-30 13:45:36,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933408215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:36,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:36,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:45:36,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190497236] [2023-08-30 13:45:36,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:36,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:45:36,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:45:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:45:36,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 122 [2023-08-30 13:45:36,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:36,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 122 [2023-08-30 13:45:36,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:36,920 INFO L130 PetriNetUnfolder]: 8/42 cut-off events. [2023-08-30 13:45:36,920 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 13:45:36,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 42 events. 8/42 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 144 event pairs, 3 based on Foata normal form. 6/44 useless extension candidates. Maximal degree in co-relation 100. Up to 24 conditions per place. [2023-08-30 13:45:36,921 INFO L137 encePairwiseOnDemand]: 115/122 looper letters, 14 selfloop transitions, 5 changer transitions 4/23 dead transitions. [2023-08-30 13:45:36,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 121 flow [2023-08-30 13:45:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:45:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:45:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 218 transitions. [2023-08-30 13:45:36,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44672131147540983 [2023-08-30 13:45:36,923 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 218 transitions. [2023-08-30 13:45:36,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 218 transitions. [2023-08-30 13:45:36,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:36,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 218 transitions. [2023-08-30 13:45:36,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.5) internal successors, (218), 4 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) [2023-08-30 13:45:36,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,926 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,927 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 47 flow. Second operand 4 states and 218 transitions. [2023-08-30 13:45:36,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 121 flow [2023-08-30 13:45:36,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:45:36,928 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 72 flow [2023-08-30 13:45:36,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2023-08-30 13:45:36,929 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-08-30 13:45:36,929 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 72 flow [2023-08-30 13:45:36,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:36,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:36,930 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:36,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:45:36,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:36,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash -666352851, now seen corresponding path program 2 times [2023-08-30 13:45:36,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:36,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830597755] [2023-08-30 13:45:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:36,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:37,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:37,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830597755] [2023-08-30 13:45:37,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830597755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:37,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:37,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:45:37,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473564772] [2023-08-30 13:45:37,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:37,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:45:37,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:37,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:45:37,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:45:37,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 122 [2023-08-30 13:45:37,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:37,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 122 [2023-08-30 13:45:37,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:37,084 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2023-08-30 13:45:37,084 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 13:45:37,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 21 events. 0/21 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 36 event pairs, 0 based on Foata normal form. 2/21 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2023-08-30 13:45:37,085 INFO L137 encePairwiseOnDemand]: 115/122 looper letters, 7 selfloop transitions, 7 changer transitions 1/15 dead transitions. [2023-08-30 13:45:37,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 15 transitions, 98 flow [2023-08-30 13:45:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:45:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:45:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-08-30 13:45:37,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2023-08-30 13:45:37,087 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 208 transitions. [2023-08-30 13:45:37,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 208 transitions. [2023-08-30 13:45:37,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:37,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 208 transitions. [2023-08-30 13:45:37,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,090 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,090 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 72 flow. Second operand 4 states and 208 transitions. [2023-08-30 13:45:37,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 15 transitions, 98 flow [2023-08-30 13:45:37,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 15 transitions, 93 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:45:37,091 INFO L231 Difference]: Finished difference. Result has 26 places, 14 transitions, 72 flow [2023-08-30 13:45:37,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=26, PETRI_TRANSITIONS=14} [2023-08-30 13:45:37,092 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 8 predicate places. [2023-08-30 13:45:37,092 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 72 flow [2023-08-30 13:45:37,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:37,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:37,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:45:37,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:37,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash 817942408, now seen corresponding path program 1 times [2023-08-30 13:45:37,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:37,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389351] [2023-08-30 13:45:37,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:37,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:37,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:37,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389351] [2023-08-30 13:45:37,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:37,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:37,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:45:37,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79197686] [2023-08-30 13:45:37,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:37,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:45:37,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:37,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:45:37,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:45:37,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 122 [2023-08-30 13:45:37,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 14 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:37,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 122 [2023-08-30 13:45:37,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:37,227 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2023-08-30 13:45:37,228 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 13:45:37,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 17 events. 0/17 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-08-30 13:45:37,228 INFO L137 encePairwiseOnDemand]: 116/122 looper letters, 10 selfloop transitions, 5 changer transitions 2/17 dead transitions. [2023-08-30 13:45:37,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 122 flow [2023-08-30 13:45:37,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:45:37,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:45:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 283 transitions. [2023-08-30 13:45:37,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4639344262295082 [2023-08-30 13:45:37,232 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 283 transitions. [2023-08-30 13:45:37,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 283 transitions. [2023-08-30 13:45:37,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:37,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 283 transitions. [2023-08-30 13:45:37,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,235 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,236 INFO L175 Difference]: Start difference. First operand has 26 places, 14 transitions, 72 flow. Second operand 5 states and 283 transitions. [2023-08-30 13:45:37,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 122 flow [2023-08-30 13:45:37,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 88 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-30 13:45:37,237 INFO L231 Difference]: Finished difference. Result has 23 places, 13 transitions, 54 flow [2023-08-30 13:45:37,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=54, PETRI_PLACES=23, PETRI_TRANSITIONS=13} [2023-08-30 13:45:37,238 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 5 predicate places. [2023-08-30 13:45:37,238 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 13 transitions, 54 flow [2023-08-30 13:45:37,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:37,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:37,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:45:37,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:37,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash 817942407, now seen corresponding path program 1 times [2023-08-30 13:45:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629034908] [2023-08-30 13:45:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:37,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:37,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629034908] [2023-08-30 13:45:37,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629034908] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:37,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:37,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:45:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133474329] [2023-08-30 13:45:37,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:37,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:45:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:45:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:45:37,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 122 [2023-08-30 13:45:37,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 13 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:37,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 122 [2023-08-30 13:45:37,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:37,352 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-08-30 13:45:37,352 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:45:37,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-30 13:45:37,353 INFO L137 encePairwiseOnDemand]: 116/122 looper letters, 6 selfloop transitions, 3 changer transitions 6/15 dead transitions. [2023-08-30 13:45:37,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 15 transitions, 88 flow [2023-08-30 13:45:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:45:37,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:45:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 281 transitions. [2023-08-30 13:45:37,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460655737704918 [2023-08-30 13:45:37,355 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 281 transitions. [2023-08-30 13:45:37,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 281 transitions. [2023-08-30 13:45:37,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:37,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 281 transitions. [2023-08-30 13:45:37,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 56.2) internal successors, (281), 5 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,358 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,358 INFO L175 Difference]: Start difference. First operand has 23 places, 13 transitions, 54 flow. Second operand 5 states and 281 transitions. [2023-08-30 13:45:37,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 15 transitions, 88 flow [2023-08-30 13:45:37,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 83 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:45:37,359 INFO L231 Difference]: Finished difference. Result has 24 places, 9 transitions, 41 flow [2023-08-30 13:45:37,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=41, PETRI_PLACES=24, PETRI_TRANSITIONS=9} [2023-08-30 13:45:37,360 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-08-30 13:45:37,360 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 9 transitions, 41 flow [2023-08-30 13:45:37,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:37,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:37,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:45:37,361 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:37,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:37,362 INFO L85 PathProgramCache]: Analyzing trace with hash -417168095, now seen corresponding path program 1 times [2023-08-30 13:45:37,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:37,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382071150] [2023-08-30 13:45:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:37,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:37,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:37,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382071150] [2023-08-30 13:45:37,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382071150] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:45:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268029268] [2023-08-30 13:45:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:37,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:45:37,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:45:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:45:37,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 122 [2023-08-30 13:45:37,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 9 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:37,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 122 [2023-08-30 13:45:37,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:37,475 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 13:45:37,475 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 13:45:37,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 9 events. 0/9 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-30 13:45:37,477 INFO L137 encePairwiseOnDemand]: 117/122 looper letters, 4 selfloop transitions, 4 changer transitions 1/9 dead transitions. [2023-08-30 13:45:37,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 9 transitions, 56 flow [2023-08-30 13:45:37,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:45:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:45:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2023-08-30 13:45:37,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4562841530054645 [2023-08-30 13:45:37,479 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 334 transitions. [2023-08-30 13:45:37,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 334 transitions. [2023-08-30 13:45:37,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:37,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 334 transitions. [2023-08-30 13:45:37,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,481 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,481 INFO L175 Difference]: Start difference. First operand has 24 places, 9 transitions, 41 flow. Second operand 6 states and 334 transitions. [2023-08-30 13:45:37,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 9 transitions, 56 flow [2023-08-30 13:45:37,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 9 transitions, 46 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 13:45:37,482 INFO L231 Difference]: Finished difference. Result has 19 places, 8 transitions, 33 flow [2023-08-30 13:45:37,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=33, PETRI_PLACES=19, PETRI_TRANSITIONS=8} [2023-08-30 13:45:37,485 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-30 13:45:37,485 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 8 transitions, 33 flow [2023-08-30 13:45:37,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:37,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:37,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:45:37,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:37,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash -417168094, now seen corresponding path program 1 times [2023-08-30 13:45:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:37,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607202217] [2023-08-30 13:45:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:37,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:45:37,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:37,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607202217] [2023-08-30 13:45:37,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607202217] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:37,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:37,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:45:37,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161673892] [2023-08-30 13:45:37,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:37,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:45:37,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:37,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:45:37,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:45:37,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 122 [2023-08-30 13:45:37,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 8 transitions, 33 flow. Second operand has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:37,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 122 [2023-08-30 13:45:37,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:37,587 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 13:45:37,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:37,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-30 13:45:37,587 INFO L137 encePairwiseOnDemand]: 117/122 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-08-30 13:45:37,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 8 transitions, 48 flow [2023-08-30 13:45:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:45:37,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:45:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 333 transitions. [2023-08-30 13:45:37,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45491803278688525 [2023-08-30 13:45:37,589 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 333 transitions. [2023-08-30 13:45:37,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 333 transitions. [2023-08-30 13:45:37,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:37,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 333 transitions. [2023-08-30 13:45:37,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,592 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,592 INFO L175 Difference]: Start difference. First operand has 19 places, 8 transitions, 33 flow. Second operand 6 states and 333 transitions. [2023-08-30 13:45:37,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 8 transitions, 48 flow [2023-08-30 13:45:37,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 8 transitions, 39 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 13:45:37,593 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-08-30 13:45:37,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-08-30 13:45:37,594 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -1 predicate places. [2023-08-30 13:45:37,594 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-08-30 13:45:37,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:45:37,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-30 13:45:37,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-30 13:45:37,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-30 13:45:37,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-30 13:45:37,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-30 13:45:37,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-30 13:45:37,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-30 13:45:37,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:45:37,598 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-30 13:45:37,602 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:45:37,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:45:37,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:45:37 BasicIcfg [2023-08-30 13:45:37,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:45:37,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:45:37,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:45:37,607 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:45:37,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:34" (3/4) ... [2023-08-30 13:45:37,609 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:45:37,614 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 13:45:37,617 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 13:45:37,617 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 13:45:37,617 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:45:37,646 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:45:37,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:45:37,647 INFO L158 Benchmark]: Toolchain (without parser) took 4541.28ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.9MB in the beginning and 44.3MB in the end (delta: 13.7MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2023-08-30 13:45:37,647 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:45:37,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.22ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 50.0MB in the end (delta: 7.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-08-30 13:45:37,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.92ms. Allocated memory is still 81.8MB. Free memory was 49.6MB in the beginning and 47.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:45:37,648 INFO L158 Benchmark]: Boogie Preprocessor took 43.12ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 46.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:45:37,648 INFO L158 Benchmark]: RCFGBuilder took 353.90ms. Allocated memory is still 81.8MB. Free memory was 46.3MB in the beginning and 34.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 13:45:37,648 INFO L158 Benchmark]: TraceAbstraction took 3344.66ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 33.3MB in the beginning and 46.4MB in the end (delta: -13.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-08-30 13:45:37,648 INFO L158 Benchmark]: Witness Printer took 39.78ms. Allocated memory is still 98.6MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:45:37,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.22ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 50.0MB in the end (delta: 7.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.92ms. Allocated memory is still 81.8MB. Free memory was 49.6MB in the beginning and 47.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.12ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 46.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 353.90ms. Allocated memory is still 81.8MB. Free memory was 46.3MB in the beginning and 34.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3344.66ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 33.3MB in the beginning and 46.4MB in the end (delta: -13.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 39.78ms. Allocated memory is still 98.6MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 62 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 15 TransitionsAfterwards, 676 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 1239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 776, independent: 689, independent conditional: 0, independent unconditional: 689, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 416, independent: 395, independent conditional: 0, independent unconditional: 395, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 776, independent: 294, independent conditional: 0, independent unconditional: 294, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 416, unknown conditional: 0, unknown unconditional: 416] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 21 mSDtfsCounter, 387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=2, InterpolantAutomatonStates: 33, 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, 0.6s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:45:37,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE