./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:37:03,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:37:03,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:37:03,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:37:03,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:37:03,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:37:03,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:37:03,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:37:03,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:37:03,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:37:03,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:37:03,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:37:03,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:37:03,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:37:03,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:37:03,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:37:03,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:37:03,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:37:03,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:37:03,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:37:03,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:37:03,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:37:03,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:37:03,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:37:03,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:37:03,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:37:03,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:37:03,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:37:03,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:37:03,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:37:03,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:37:03,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:37:03,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:37:03,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:37:03,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:37:03,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:37:03,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:37:03,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:37:03,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:37:03,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:37:03,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:37:03,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:37:03,996 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:37:03,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:37:03,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:37:03,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:37:03,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:37:03,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:37:03,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:37:03,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:37:03,999 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:37:03,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:37:03,999 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:37:04,000 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:37:04,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:37:04,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:37:04,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:37:04,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:37:04,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:37:04,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:37:04,001 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:37:04,001 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:37:04,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:37:04,001 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:37:04,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:37:04,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:37:04,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:37:04,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:37:04,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:37:04,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:37:04,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:37:04,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:37:04,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:37:04,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:37:04,003 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:37:04,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:37:04,003 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:37:04,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:37:04,003 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:37:04,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:37:04,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:37:04,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:37:04,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:37:04,267 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:37:04,267 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:37:04,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-30 09:37:05,266 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:37:05,464 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:37:05,465 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-30 09:37:05,474 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b40b1969/7138a4112d864a7f907213b70ee57f8c/FLAG8ad215c8b [2023-08-30 09:37:05,484 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b40b1969/7138a4112d864a7f907213b70ee57f8c [2023-08-30 09:37:05,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:37:05,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:37:05,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:37:05,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:37:05,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:37:05,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:37:05" (1/1) ... [2023-08-30 09:37:05,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34285971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:05, skipping insertion in model container [2023-08-30 09:37:05,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:37:05" (1/1) ... [2023-08-30 09:37:05,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:37:05,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:37:05,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:37:05,987 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:37:06,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:37:06,134 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:37:06,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06 WrapperNode [2023-08-30 09:37:06,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:37:06,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:37:06,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:37:06,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:37:06,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,195 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 128 [2023-08-30 09:37:06,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:37:06,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:37:06,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:37:06,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:37:06,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:37:06,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:37:06,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:37:06,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:37:06,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (1/1) ... [2023-08-30 09:37:06,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:37:06,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:37:06,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:37:06,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:37:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:37:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 09:37:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:37:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:37:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:37:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:37:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 09:37:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:37:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 09:37:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:37:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:37:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:37:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:37:06,297 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:37:06,432 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:37:06,433 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:37:06,634 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:37:06,639 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:37:06,640 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-30 09:37:06,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:37:06 BoogieIcfgContainer [2023-08-30 09:37:06,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:37:06,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:37:06,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:37:06,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:37:06,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:37:05" (1/3) ... [2023-08-30 09:37:06,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7adaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:37:06, skipping insertion in model container [2023-08-30 09:37:06,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:37:06" (2/3) ... [2023-08-30 09:37:06,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7adaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:37:06, skipping insertion in model container [2023-08-30 09:37:06,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:37:06" (3/3) ... [2023-08-30 09:37:06,648 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2023-08-30 09:37:06,653 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:37:06,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:37:06,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 09:37:06,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:37:06,710 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:37:06,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 141 transitions, 287 flow [2023-08-30 09:37:06,811 INFO L130 PetriNetUnfolder]: 6/140 cut-off events. [2023-08-30 09:37:06,812 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:37:06,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 140 events. 6/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 225 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-08-30 09:37:06,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 141 transitions, 287 flow [2023-08-30 09:37:06,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 140 transitions, 283 flow [2023-08-30 09:37:06,821 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:37:06,829 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 140 transitions, 283 flow [2023-08-30 09:37:06,830 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 140 transitions, 283 flow [2023-08-30 09:37:06,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 140 transitions, 283 flow [2023-08-30 09:37:06,854 INFO L130 PetriNetUnfolder]: 6/140 cut-off events. [2023-08-30 09:37:06,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:37:06,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 140 events. 6/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-08-30 09:37:06,857 INFO L119 LiptonReduction]: Number of co-enabled transitions 4680 [2023-08-30 09:37:11,626 INFO L134 LiptonReduction]: Checked pairs total: 8340 [2023-08-30 09:37:11,627 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-30 09:37:11,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:37:11,640 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;@57d601ed, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:37:11,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-30 09:37:11,641 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-30 09:37:11,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:37:11,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:11,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 09:37:11,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:11,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:11,652 INFO L85 PathProgramCache]: Analyzing trace with hash 16510, now seen corresponding path program 1 times [2023-08-30 09:37:11,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:11,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594734535] [2023-08-30 09:37:11,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:11,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:11,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:11,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594734535] [2023-08-30 09:37:11,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594734535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:37:11,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:37:11,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:37:11,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383519364] [2023-08-30 09:37:11,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:37:11,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:37:11,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:11,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:37:11,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:37:11,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 09:37:11,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:11,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:11,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 09:37:11,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:37:12,052 INFO L130 PetriNetUnfolder]: 338/734 cut-off events. [2023-08-30 09:37:12,052 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:37:12,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1417 conditions, 734 events. 338/734 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2947 event pairs, 169 based on Foata normal form. 0/594 useless extension candidates. Maximal degree in co-relation 1400. Up to 398 conditions per place. [2023-08-30 09:37:12,056 INFO L137 encePairwiseOnDemand]: 257/268 looper letters, 54 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2023-08-30 09:37:12,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 60 transitions, 239 flow [2023-08-30 09:37:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:37:12,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:37:12,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2023-08-30 09:37:12,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5646766169154229 [2023-08-30 09:37:12,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2023-08-30 09:37:12,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2023-08-30 09:37:12,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:37:12,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2023-08-30 09:37:12,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,082 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 77 flow. Second operand 3 states and 454 transitions. [2023-08-30 09:37:12,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 60 transitions, 239 flow [2023-08-30 09:37:12,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 60 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:37:12,086 INFO L231 Difference]: Finished difference. Result has 38 places, 37 transitions, 102 flow [2023-08-30 09:37:12,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=38, PETRI_TRANSITIONS=37} [2023-08-30 09:37:12,090 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 09:37:12,090 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 102 flow [2023-08-30 09:37:12,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:12,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:37:12,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:37:12,091 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:12,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:12,092 INFO L85 PathProgramCache]: Analyzing trace with hash 512417, now seen corresponding path program 1 times [2023-08-30 09:37:12,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:12,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857276413] [2023-08-30 09:37:12,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:12,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:12,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:12,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857276413] [2023-08-30 09:37:12,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857276413] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:37:12,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376681130] [2023-08-30 09:37:12,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:12,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:37:12,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:37:12,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:37:12,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:37:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:12,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 09:37:12,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:37:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:12,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:37:12,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376681130] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:37:12,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:37:12,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-08-30 09:37:12,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329840162] [2023-08-30 09:37:12,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:37:12,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 09:37:12,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:12,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 09:37:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:37:12,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 268 [2023-08-30 09:37:12,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:12,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 268 [2023-08-30 09:37:12,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:37:12,512 INFO L130 PetriNetUnfolder]: 324/705 cut-off events. [2023-08-30 09:37:12,512 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-30 09:37:12,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1449 conditions, 705 events. 324/705 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2836 event pairs, 156 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 1428. Up to 368 conditions per place. [2023-08-30 09:37:12,515 INFO L137 encePairwiseOnDemand]: 262/268 looper letters, 52 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2023-08-30 09:37:12,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 58 transitions, 252 flow [2023-08-30 09:37:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 09:37:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 09:37:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 574 transitions. [2023-08-30 09:37:12,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5354477611940298 [2023-08-30 09:37:12,519 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 574 transitions. [2023-08-30 09:37:12,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 574 transitions. [2023-08-30 09:37:12,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:37:12,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 574 transitions. [2023-08-30 09:37:12,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 268.0) internal successors, (1340), 5 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,523 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 268.0) internal successors, (1340), 5 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,524 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 102 flow. Second operand 4 states and 574 transitions. [2023-08-30 09:37:12,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 58 transitions, 252 flow [2023-08-30 09:37:12,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 58 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:37:12,526 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 98 flow [2023-08-30 09:37:12,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2023-08-30 09:37:12,527 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 09:37:12,527 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 98 flow [2023-08-30 09:37:12,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:12,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:37:12,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-30 09:37:12,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:37:12,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:12,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1914958083, now seen corresponding path program 1 times [2023-08-30 09:37:12,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:12,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934352621] [2023-08-30 09:37:12,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934352621] [2023-08-30 09:37:12,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934352621] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:37:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292630511] [2023-08-30 09:37:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:12,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:37:12,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:37:12,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:37:12,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:37:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:12,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-30 09:37:12,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:37:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 09:37:12,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:37:12,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292630511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:37:12,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:37:12,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 09:37:12,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985357944] [2023-08-30 09:37:12,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:37:12,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:37:12,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:12,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:37:12,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:37:12,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 268 [2023-08-30 09:37:12,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:12,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:12,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 268 [2023-08-30 09:37:12,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:37:13,031 INFO L130 PetriNetUnfolder]: 278/561 cut-off events. [2023-08-30 09:37:13,031 INFO L131 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2023-08-30 09:37:13,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 561 events. 278/561 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2305 event pairs, 0 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 1192. Up to 529 conditions per place. [2023-08-30 09:37:13,034 INFO L137 encePairwiseOnDemand]: 265/268 looper letters, 44 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2023-08-30 09:37:13,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 226 flow [2023-08-30 09:37:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:37:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:37:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-08-30 09:37:13,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5435323383084577 [2023-08-30 09:37:13,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-08-30 09:37:13,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-08-30 09:37:13,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:37:13,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-08-30 09:37:13,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,038 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 98 flow. Second operand 3 states and 437 transitions. [2023-08-30 09:37:13,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 226 flow [2023-08-30 09:37:13,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 214 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:37:13,040 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 88 flow [2023-08-30 09:37:13,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2023-08-30 09:37:13,041 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -3 predicate places. [2023-08-30 09:37:13,041 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 88 flow [2023-08-30 09:37:13,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:13,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:37:13,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:37:13,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-30 09:37:13,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:13,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -183087926, now seen corresponding path program 1 times [2023-08-30 09:37:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:13,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907872897] [2023-08-30 09:37:13,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:13,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:13,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907872897] [2023-08-30 09:37:13,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907872897] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:37:13,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077197340] [2023-08-30 09:37:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:37:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:37:13,342 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:37:13,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 09:37:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:13,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:37:13,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:37:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:13,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:37:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:37:13,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077197340] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:37:13,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:37:13,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:37:13,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296200784] [2023-08-30 09:37:13,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:37:13,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:37:13,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:37:13,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:37:13,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 268 [2023-08-30 09:37:13,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 88 flow. Second operand has 7 states, 7 states have (on average 129.71428571428572) internal successors, (908), 7 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:13,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 268 [2023-08-30 09:37:13,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:37:13,759 INFO L130 PetriNetUnfolder]: 518/1136 cut-off events. [2023-08-30 09:37:13,760 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2023-08-30 09:37:13,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2304 conditions, 1136 events. 518/1136 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4373 event pairs, 22 based on Foata normal form. 36/1085 useless extension candidates. Maximal degree in co-relation 2275. Up to 253 conditions per place. [2023-08-30 09:37:13,763 INFO L137 encePairwiseOnDemand]: 260/268 looper letters, 95 selfloop transitions, 11 changer transitions 5/113 dead transitions. [2023-08-30 09:37:13,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 113 transitions, 486 flow [2023-08-30 09:37:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:37:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:37:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2023-08-30 09:37:13,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485074626865671 [2023-08-30 09:37:13,765 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 882 transitions. [2023-08-30 09:37:13,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 882 transitions. [2023-08-30 09:37:13,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:37:13,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 882 transitions. [2023-08-30 09:37:13,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,770 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 268.0) internal successors, (1876), 7 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,770 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 88 flow. Second operand 6 states and 882 transitions. [2023-08-30 09:37:13,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 113 transitions, 486 flow [2023-08-30 09:37:13,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 113 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:37:13,772 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 159 flow [2023-08-30 09:37:13,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=159, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2023-08-30 09:37:13,772 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2023-08-30 09:37:13,772 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 159 flow [2023-08-30 09:37:13,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 129.71428571428572) internal successors, (908), 7 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:13,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:13,773 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:37:13,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 09:37:13,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:37:13,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:13,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:13,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1896495373, now seen corresponding path program 2 times [2023-08-30 09:37:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:13,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137451272] [2023-08-30 09:37:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 09:37:14,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:14,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137451272] [2023-08-30 09:37:14,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137451272] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:37:14,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:37:14,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:37:14,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342148637] [2023-08-30 09:37:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:37:14,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:37:14,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:14,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:37:14,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:37:14,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 268 [2023-08-30 09:37:14,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:14,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 268 [2023-08-30 09:37:14,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:37:14,293 INFO L130 PetriNetUnfolder]: 862/1797 cut-off events. [2023-08-30 09:37:14,293 INFO L131 PetriNetUnfolder]: For 583/583 co-relation queries the response was YES. [2023-08-30 09:37:14,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4077 conditions, 1797 events. 862/1797 cut-off events. For 583/583 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8556 event pairs, 453 based on Foata normal form. 0/1754 useless extension candidates. Maximal degree in co-relation 4032. Up to 955 conditions per place. [2023-08-30 09:37:14,299 INFO L137 encePairwiseOnDemand]: 265/268 looper letters, 58 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2023-08-30 09:37:14,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 62 transitions, 371 flow [2023-08-30 09:37:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:37:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:37:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2023-08-30 09:37:14,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497512437810945 [2023-08-30 09:37:14,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2023-08-30 09:37:14,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2023-08-30 09:37:14,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:37:14,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2023-08-30 09:37:14,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,304 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 159 flow. Second operand 3 states and 442 transitions. [2023-08-30 09:37:14,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 62 transitions, 371 flow [2023-08-30 09:37:14,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 347 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-30 09:37:14,307 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 155 flow [2023-08-30 09:37:14,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-08-30 09:37:14,308 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2023-08-30 09:37:14,308 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 155 flow [2023-08-30 09:37:14,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:37:14,309 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-08-30 09:37:14,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:37:14,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:37:14,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:37:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash -188795921, now seen corresponding path program 1 times [2023-08-30 09:37:14,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:37:14,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792541178] [2023-08-30 09:37:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:37:14,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:37:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:37:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-30 09:37:14,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:37:14,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792541178] [2023-08-30 09:37:14,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792541178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:37:14,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:37:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:37:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456761072] [2023-08-30 09:37:14,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:37:14,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:37:14,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:37:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:37:14,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:37:14,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 268 [2023-08-30 09:37:14,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:37:14,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 268 [2023-08-30 09:37:14,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:37:14,574 INFO L130 PetriNetUnfolder]: 819/1722 cut-off events. [2023-08-30 09:37:14,575 INFO L131 PetriNetUnfolder]: For 512/512 co-relation queries the response was YES. [2023-08-30 09:37:14,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3986 conditions, 1722 events. 819/1722 cut-off events. For 512/512 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8087 event pairs, 141 based on Foata normal form. 0/1722 useless extension candidates. Maximal degree in co-relation 3943. Up to 1462 conditions per place. [2023-08-30 09:37:14,578 INFO L137 encePairwiseOnDemand]: 264/268 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2023-08-30 09:37:14,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 323 flow [2023-08-30 09:37:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:37:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:37:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2023-08-30 09:37:14,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348258706467661 [2023-08-30 09:37:14,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2023-08-30 09:37:14,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2023-08-30 09:37:14,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:37:14,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2023-08-30 09:37:14,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,582 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 155 flow. Second operand 3 states and 430 transitions. [2023-08-30 09:37:14,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 323 flow [2023-08-30 09:37:14,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:37:14,583 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-30 09:37:14,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-30 09:37:14,584 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2023-08-30 09:37:14,584 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-30 09:37:14,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:37:14,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-30 09:37:14,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-30 09:37:14,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2023-08-30 09:37:14,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-30 09:37:14,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-30 09:37:14,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-30 09:37:14,588 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-30 09:37:14,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:37:14,588 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-30 09:37:14,592 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:37:14,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:37:14,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:37:14 BasicIcfg [2023-08-30 09:37:14,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:37:14,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:37:14,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:37:14,594 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:37:14,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:37:06" (3/4) ... [2023-08-30 09:37:14,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:37:14,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:37:14,602 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-30 09:37:14,602 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 09:37:14,603 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:37:14,622 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:37:14,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:37:14,623 INFO L158 Benchmark]: Toolchain (without parser) took 9132.52ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 84.7MB in the beginning and 74.8MB in the end (delta: 9.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,623 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:37:14,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.98ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 79.3MB in the end (delta: 5.1MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.93ms. Allocated memory is still 109.1MB. Free memory was 79.3MB in the beginning and 76.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,624 INFO L158 Benchmark]: Boogie Preprocessor took 34.40ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,624 INFO L158 Benchmark]: RCFGBuilder took 404.67ms. Allocated memory is still 109.1MB. Free memory was 74.4MB in the beginning and 54.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,624 INFO L158 Benchmark]: TraceAbstraction took 7951.70ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 53.5MB in the beginning and 78.0MB in the end (delta: -24.4MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,624 INFO L158 Benchmark]: Witness Printer took 28.38ms. Allocated memory is still 159.4MB. Free memory was 78.0MB in the beginning and 74.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:37:14,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.98ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 79.3MB in the end (delta: 5.1MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.93ms. Allocated memory is still 109.1MB. Free memory was 79.3MB in the beginning and 76.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.40ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.67ms. Allocated memory is still 109.1MB. Free memory was 74.4MB in the beginning and 54.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7951.70ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 53.5MB in the beginning and 78.0MB in the end (delta: -24.4MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Witness Printer took 28.38ms. Allocated memory is still 159.4MB. Free memory was 78.0MB in the beginning and 74.8MB in the end (delta: 3.1MB). 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: 4.8s, 138 PlacesBefore, 38 PlacesAfterwards, 140 TransitionsBefore, 37 TransitionsAfterwards, 4680 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 127 TotalNumberOfCompositions, 8340 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3871, independent: 3574, independent conditional: 0, independent unconditional: 3574, dependent: 297, dependent conditional: 0, dependent unconditional: 297, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2432, independent: 2377, independent conditional: 0, independent unconditional: 2377, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3871, independent: 1197, independent conditional: 0, independent unconditional: 1197, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 2432, unknown conditional: 0, unknown unconditional: 2432] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: 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, 181 locations, 13 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: 7.9s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 559 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 404 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 703 IncrementalHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 18 mSDtfsCounter, 703 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=4, InterpolantAutomatonStates: 22, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 583 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 31/36 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:37:14,639 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