./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 10:46:25,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 10:46:25,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 10:46:25,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 10:46:25,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 10:46:25,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 10:46:25,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 10:46:25,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 10:46:25,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 10:46:25,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 10:46:25,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 10:46:25,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 10:46:25,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 10:46:25,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 10:46:25,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 10:46:25,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 10:46:25,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 10:46:25,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 10:46:25,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 10:46:25,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 10:46:25,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 10:46:25,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 10:46:25,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 10:46:25,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 10:46:25,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 10:46:25,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 10:46:25,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 10:46:25,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 10:46:25,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 10:46:25,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 10:46:25,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 10:46:25,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 10:46:25,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 10:46:25,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 10:46:25,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 10:46:25,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 10:46:25,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 10:46:25,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 10:46:25,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 10:46:25,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 10:46:25,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 10:46:25,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 10:46:26,026 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 10:46:26,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 10:46:26,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 10:46:26,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 10:46:26,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 10:46:26,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 10:46:26,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 10:46:26,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 10:46:26,029 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 10:46:26,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 10:46:26,030 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 10:46:26,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 10:46:26,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 10:46:26,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 10:46:26,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 10:46:26,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 10:46:26,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 10:46:26,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 10:46:26,032 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 10:46:26,032 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 10:46:26,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 10:46:26,033 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 10:46:26,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 10:46:26,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 10:46:26,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 10:46:26,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 10:46:26,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:46:26,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 10:46:26,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 10:46:26,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 10:46:26,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 10:46:26,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 10:46:26,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 10:46:26,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 10:46:26,035 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 10:46:26,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 10:46:26,036 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 10:46:26,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 10:46:26,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 10:46:26,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 10:46:26,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 10:46:26,340 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 10:46:26,341 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 10:46:26,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-30 10:46:27,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 10:46:27,728 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 10:46:27,729 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-30 10:46:27,744 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf2fa47b/aa8b24e0056e482cb2a1eec40cd184cc/FLAG64eeb3a08 [2023-08-30 10:46:27,768 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf2fa47b/aa8b24e0056e482cb2a1eec40cd184cc [2023-08-30 10:46:27,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 10:46:27,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 10:46:27,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 10:46:27,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 10:46:27,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 10:46:27,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:27" (1/1) ... [2023-08-30 10:46:27,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ced5b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:27, skipping insertion in model container [2023-08-30 10:46:27,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:27" (1/1) ... [2023-08-30 10:46:27,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 10:46:27,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 10:46:27,968 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-30 10:46:28,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:46:28,125 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 10:46:28,135 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-08-30 10:46:28,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 10:46:28,232 INFO L208 MainTranslator]: Completed translation [2023-08-30 10:46:28,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28 WrapperNode [2023-08-30 10:46:28,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 10:46:28,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 10:46:28,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 10:46:28,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 10:46:28,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,305 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 171 [2023-08-30 10:46:28,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 10:46:28,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 10:46:28,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 10:46:28,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 10:46:28,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 10:46:28,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 10:46:28,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 10:46:28,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 10:46:28,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (1/1) ... [2023-08-30 10:46:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 10:46:28,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 10:46:28,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 10:46:28,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 10:46:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 10:46:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 10:46:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 10:46:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 10:46:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 10:46:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 10:46:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 10:46:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 10:46:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 10:46:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 10:46:28,446 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 10:46:28,635 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 10:46:28,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 10:46:28,924 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 10:46:28,933 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 10:46:28,934 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 10:46:28,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:28 BoogieIcfgContainer [2023-08-30 10:46:28,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 10:46:28,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 10:46:28,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 10:46:28,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 10:46:28,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:46:27" (1/3) ... [2023-08-30 10:46:28,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0020f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:28, skipping insertion in model container [2023-08-30 10:46:28,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:28" (2/3) ... [2023-08-30 10:46:28,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0020f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:28, skipping insertion in model container [2023-08-30 10:46:28,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:28" (3/3) ... [2023-08-30 10:46:28,943 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-08-30 10:46:28,951 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 10:46:28,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 10:46:28,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-30 10:46:28,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 10:46:29,040 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 10:46:29,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 207 transitions, 419 flow [2023-08-30 10:46:29,161 INFO L130 PetriNetUnfolder]: 12/209 cut-off events. [2023-08-30 10:46:29,162 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:29,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 209 events. 12/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2023-08-30 10:46:29,170 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 207 transitions, 419 flow [2023-08-30 10:46:29,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 205 transitions, 413 flow [2023-08-30 10:46:29,185 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 10:46:29,194 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 205 transitions, 413 flow [2023-08-30 10:46:29,196 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 205 transitions, 413 flow [2023-08-30 10:46:29,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 205 transitions, 413 flow [2023-08-30 10:46:29,238 INFO L130 PetriNetUnfolder]: 12/205 cut-off events. [2023-08-30 10:46:29,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:29,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 205 events. 12/205 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 251 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2023-08-30 10:46:29,247 INFO L119 LiptonReduction]: Number of co-enabled transitions 12730 [2023-08-30 10:46:37,085 INFO L134 LiptonReduction]: Checked pairs total: 19580 [2023-08-30 10:46:37,086 INFO L136 LiptonReduction]: Total number of compositions: 234 [2023-08-30 10:46:37,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 10:46:37,104 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;@341445c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 10:46:37,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-08-30 10:46:37,108 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 10:46:37,108 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:37,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:37,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 10:46:37,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:37,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1404893689, now seen corresponding path program 1 times [2023-08-30 10:46:37,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:37,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129683272] [2023-08-30 10:46:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:37,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:37,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129683272] [2023-08-30 10:46:37,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129683272] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:37,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:37,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:46:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906166775] [2023-08-30 10:46:37,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:37,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 10:46:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:37,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 10:46:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 10:46:37,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 441 [2023-08-30 10:46:37,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 83 flow. Second operand has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:37,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 441 [2023-08-30 10:46:37,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:37,531 INFO L130 PetriNetUnfolder]: 161/374 cut-off events. [2023-08-30 10:46:37,531 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:37,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 374 events. 161/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1525 event pairs, 150 based on Foata normal form. 11/296 useless extension candidates. Maximal degree in co-relation 708. Up to 339 conditions per place. [2023-08-30 10:46:37,538 INFO L137 encePairwiseOnDemand]: 433/441 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-08-30 10:46:37,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 123 flow [2023-08-30 10:46:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 10:46:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 10:46:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 428 transitions. [2023-08-30 10:46:37,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852607709750567 [2023-08-30 10:46:37,562 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 428 transitions. [2023-08-30 10:46:37,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 428 transitions. [2023-08-30 10:46:37,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:37,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 428 transitions. [2023-08-30 10:46:37,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 214.0) internal successors, (428), 2 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,580 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,582 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 83 flow. Second operand 2 states and 428 transitions. [2023-08-30 10:46:37,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 123 flow [2023-08-30 10:46:37,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:37,588 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 66 flow [2023-08-30 10:46:37,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2023-08-30 10:46:37,594 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-08-30 10:46:37,594 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 66 flow [2023-08-30 10:46:37,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:37,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 10:46:37,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 10:46:37,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:37,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1404893657, now seen corresponding path program 1 times [2023-08-30 10:46:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:37,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933715872] [2023-08-30 10:46:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:37,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:37,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:37,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:37,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933715872] [2023-08-30 10:46:37,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933715872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:37,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:37,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 10:46:37,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492355481] [2023-08-30 10:46:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:37,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:37,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:37,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:37,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 441 [2023-08-30 10:46:37,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:37,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 441 [2023-08-30 10:46:37,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:37,855 INFO L130 PetriNetUnfolder]: 145/342 cut-off events. [2023-08-30 10:46:37,856 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:37,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 342 events. 145/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1352 event pairs, 135 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 650. Up to 306 conditions per place. [2023-08-30 10:46:37,859 INFO L137 encePairwiseOnDemand]: 439/441 looper letters, 20 selfloop transitions, 1 changer transitions 6/31 dead transitions. [2023-08-30 10:46:37,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 118 flow [2023-08-30 10:46:37,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2023-08-30 10:46:37,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45880574452003026 [2023-08-30 10:46:37,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2023-08-30 10:46:37,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2023-08-30 10:46:37,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:37,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2023-08-30 10:46:37,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,870 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 66 flow. Second operand 3 states and 607 transitions. [2023-08-30 10:46:37,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 118 flow [2023-08-30 10:46:37,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 31 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 10:46:37,871 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 54 flow [2023-08-30 10:46:37,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-08-30 10:46:37,873 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -6 predicate places. [2023-08-30 10:46:37,873 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 54 flow [2023-08-30 10:46:37,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:37,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:37,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:37,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 10:46:37,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:37,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash -442194347, now seen corresponding path program 1 times [2023-08-30 10:46:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17560431] [2023-08-30 10:46:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:38,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:38,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17560431] [2023-08-30 10:46:38,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17560431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:38,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:38,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 10:46:38,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808954588] [2023-08-30 10:46:38,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:38,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 10:46:38,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:38,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 10:46:38,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 10:46:38,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 441 [2023-08-30 10:46:38,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 190.8) internal successors, (954), 5 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:38,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 441 [2023-08-30 10:46:38,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:38,261 INFO L130 PetriNetUnfolder]: 106/285 cut-off events. [2023-08-30 10:46:38,262 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 10:46:38,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 285 events. 106/285 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1182 event pairs, 46 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 533. Up to 119 conditions per place. [2023-08-30 10:46:38,263 INFO L137 encePairwiseOnDemand]: 435/441 looper letters, 45 selfloop transitions, 7 changer transitions 0/56 dead transitions. [2023-08-30 10:46:38,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 56 transitions, 220 flow [2023-08-30 10:46:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 10:46:38,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 10:46:38,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1379 transitions. [2023-08-30 10:46:38,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4467120181405896 [2023-08-30 10:46:38,268 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1379 transitions. [2023-08-30 10:46:38,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1379 transitions. [2023-08-30 10:46:38,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:38,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1379 transitions. [2023-08-30 10:46:38,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 441.0) internal successors, (3528), 8 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,279 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 441.0) internal successors, (3528), 8 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,280 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 54 flow. Second operand 7 states and 1379 transitions. [2023-08-30 10:46:38,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 56 transitions, 220 flow [2023-08-30 10:46:38,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 56 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:38,281 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 96 flow [2023-08-30 10:46:38,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2023-08-30 10:46:38,282 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-08-30 10:46:38,283 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 96 flow [2023-08-30 10:46:38,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 190.8) internal successors, (954), 5 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:38,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 10:46:38,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:38,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash -442194400, now seen corresponding path program 1 times [2023-08-30 10:46:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:38,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212455983] [2023-08-30 10:46:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:38,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:38,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:38,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212455983] [2023-08-30 10:46:38,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212455983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:38,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:38,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:46:38,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816277420] [2023-08-30 10:46:38,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:38,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:38,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:38,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:38,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:38,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 441 [2023-08-30 10:46:38,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:38,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 441 [2023-08-30 10:46:38,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:38,388 INFO L130 PetriNetUnfolder]: 87/240 cut-off events. [2023-08-30 10:46:38,388 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2023-08-30 10:46:38,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 240 events. 87/240 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 948 event pairs, 55 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 503. Up to 134 conditions per place. [2023-08-30 10:46:38,390 INFO L137 encePairwiseOnDemand]: 438/441 looper letters, 29 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2023-08-30 10:46:38,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 168 flow [2023-08-30 10:46:38,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:38,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2023-08-30 10:46:38,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46485260770975056 [2023-08-30 10:46:38,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 615 transitions. [2023-08-30 10:46:38,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 615 transitions. [2023-08-30 10:46:38,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:38,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 615 transitions. [2023-08-30 10:46:38,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,401 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 96 flow. Second operand 3 states and 615 transitions. [2023-08-30 10:46:38,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 168 flow [2023-08-30 10:46:38,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 10:46:38,403 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 94 flow [2023-08-30 10:46:38,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-30 10:46:38,404 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-08-30 10:46:38,404 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 94 flow [2023-08-30 10:46:38,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:38,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:38,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 10:46:38,406 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:38,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:38,406 INFO L85 PathProgramCache]: Analyzing trace with hash -442194345, now seen corresponding path program 1 times [2023-08-30 10:46:38,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:38,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283761571] [2023-08-30 10:46:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:38,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:38,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283761571] [2023-08-30 10:46:38,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283761571] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:38,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:38,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 10:46:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386830182] [2023-08-30 10:46:38,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:38,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:38,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:38,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 441 [2023-08-30 10:46:38,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:38,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 441 [2023-08-30 10:46:38,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:38,511 INFO L130 PetriNetUnfolder]: 73/210 cut-off events. [2023-08-30 10:46:38,512 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 10:46:38,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 210 events. 73/210 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 794 event pairs, 54 based on Foata normal form. 16/225 useless extension candidates. Maximal degree in co-relation 457. Up to 134 conditions per place. [2023-08-30 10:46:38,513 INFO L137 encePairwiseOnDemand]: 439/441 looper letters, 22 selfloop transitions, 1 changer transitions 8/35 dead transitions. [2023-08-30 10:46:38,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 170 flow [2023-08-30 10:46:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2023-08-30 10:46:38,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4633408919123205 [2023-08-30 10:46:38,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2023-08-30 10:46:38,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2023-08-30 10:46:38,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:38,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2023-08-30 10:46:38,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,521 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 94 flow. Second operand 3 states and 613 transitions. [2023-08-30 10:46:38,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 170 flow [2023-08-30 10:46:38,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 167 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:38,523 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 64 flow [2023-08-30 10:46:38,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2023-08-30 10:46:38,524 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-08-30 10:46:38,525 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 64 flow [2023-08-30 10:46:38,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:38,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:38,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 10:46:38,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:38,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:38,526 INFO L85 PathProgramCache]: Analyzing trace with hash 2143323185, now seen corresponding path program 1 times [2023-08-30 10:46:38,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900180074] [2023-08-30 10:46:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:38,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:38,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900180074] [2023-08-30 10:46:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900180074] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:38,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:38,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 10:46:38,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133453311] [2023-08-30 10:46:38,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:38,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 10:46:38,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:38,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 10:46:38,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 10:46:38,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 441 [2023-08-30 10:46:38,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:38,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 441 [2023-08-30 10:46:38,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:38,670 INFO L130 PetriNetUnfolder]: 41/123 cut-off events. [2023-08-30 10:46:38,670 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-30 10:46:38,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 123 events. 41/123 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 375 event pairs, 14 based on Foata normal form. 10/133 useless extension candidates. Maximal degree in co-relation 287. Up to 68 conditions per place. [2023-08-30 10:46:38,671 INFO L137 encePairwiseOnDemand]: 433/441 looper letters, 21 selfloop transitions, 8 changer transitions 1/32 dead transitions. [2023-08-30 10:46:38,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 155 flow [2023-08-30 10:46:38,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 10:46:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 10:46:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2023-08-30 10:46:38,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-30 10:46:38,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2023-08-30 10:46:38,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2023-08-30 10:46:38,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:38,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2023-08-30 10:46:38,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 441.0) internal successors, (1764), 4 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,685 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 64 flow. Second operand 3 states and 588 transitions. [2023-08-30 10:46:38,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 155 flow [2023-08-30 10:46:38,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 137 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-30 10:46:38,687 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 91 flow [2023-08-30 10:46:38,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2023-08-30 10:46:38,688 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -9 predicate places. [2023-08-30 10:46:38,688 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 91 flow [2023-08-30 10:46:38,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 10:46:38,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:38,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 10:46:38,689 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 10:46:38,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 10:46:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash -470156683, now seen corresponding path program 1 times [2023-08-30 10:46:38,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 10:46:38,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137701607] [2023-08-30 10:46:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 10:46:38,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 10:46:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 10:46:38,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 10:46:38,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 10:46:38,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137701607] [2023-08-30 10:46:38,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137701607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 10:46:38,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 10:46:38,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 10:46:38,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837736266] [2023-08-30 10:46:38,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 10:46:38,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 10:46:38,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 10:46:38,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 10:46:38,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 10:46:38,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 441 [2023-08-30 10:46:38,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 10:46:38,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 441 [2023-08-30 10:46:38,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 10:46:38,914 INFO L130 PetriNetUnfolder]: 31/100 cut-off events. [2023-08-30 10:46:38,914 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-30 10:46:38,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 100 events. 31/100 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 289 event pairs, 12 based on Foata normal form. 5/103 useless extension candidates. Maximal degree in co-relation 269. Up to 42 conditions per place. [2023-08-30 10:46:38,915 INFO L137 encePairwiseOnDemand]: 437/441 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-30 10:46:38,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 161 flow [2023-08-30 10:46:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 10:46:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 10:46:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 948 transitions. [2023-08-30 10:46:38,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42993197278911566 [2023-08-30 10:46:38,919 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 948 transitions. [2023-08-30 10:46:38,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 948 transitions. [2023-08-30 10:46:38,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 10:46:38,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 948 transitions. [2023-08-30 10:46:38,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.6) internal successors, (948), 5 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 441.0) internal successors, (2646), 6 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,925 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 441.0) internal successors, (2646), 6 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,925 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 91 flow. Second operand 5 states and 948 transitions. [2023-08-30 10:46:38,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 161 flow [2023-08-30 10:46:38,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 10:46:38,927 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 10:46:38,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-30 10:46:38,928 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-08-30 10:46:38,928 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 10:46:38,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.5) internal successors, (1125), 6 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 10:46:38,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2023-08-30 10:46:38,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2023-08-30 10:46:38,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2023-08-30 10:46:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2023-08-30 10:46:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2023-08-30 10:46:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2023-08-30 10:46:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2023-08-30 10:46:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2023-08-30 10:46:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2023-08-30 10:46:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2023-08-30 10:46:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2023-08-30 10:46:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2023-08-30 10:46:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2023-08-30 10:46:38,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2023-08-30 10:46:38,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2023-08-30 10:46:38,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2023-08-30 10:46:38,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2023-08-30 10:46:38,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2023-08-30 10:46:38,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2023-08-30 10:46:38,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 10:46:38,935 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 10:46:38,940 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 10:46:38,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 10:46:38,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:46:38 BasicIcfg [2023-08-30 10:46:38,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 10:46:38,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 10:46:38,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 10:46:38,944 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 10:46:38,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:28" (3/4) ... [2023-08-30 10:46:38,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 10:46:38,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 10:46:38,956 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-30 10:46:38,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 10:46:38,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 10:46:38,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 10:46:38,988 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 10:46:38,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 10:46:38,989 INFO L158 Benchmark]: Toolchain (without parser) took 11217.42ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 33.9MB in the beginning and 43.8MB in the end (delta: -9.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,989 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory was 32.6MB in the beginning and 32.5MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 10:46:38,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.58ms. Allocated memory is still 67.1MB. Free memory was 33.6MB in the beginning and 29.2MB in the end (delta: 4.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.50ms. Allocated memory is still 67.1MB. Free memory was 29.2MB in the beginning and 46.6MB in the end (delta: -17.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,990 INFO L158 Benchmark]: Boogie Preprocessor took 54.02ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,990 INFO L158 Benchmark]: RCFGBuilder took 574.45ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 42.1MB in the end (delta: 2.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,990 INFO L158 Benchmark]: TraceAbstraction took 10005.86ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 41.6MB in the beginning and 48.0MB in the end (delta: -6.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,991 INFO L158 Benchmark]: Witness Printer took 44.83ms. Allocated memory is still 119.5MB. Free memory was 48.0MB in the beginning and 43.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 10:46:38,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory was 32.6MB in the beginning and 32.5MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.58ms. Allocated memory is still 67.1MB. Free memory was 33.6MB in the beginning and 29.2MB in the end (delta: 4.3MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.50ms. Allocated memory is still 67.1MB. Free memory was 29.2MB in the beginning and 46.6MB in the end (delta: -17.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.02ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.45ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 42.1MB in the end (delta: 2.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10005.86ms. Allocated memory was 67.1MB in the beginning and 119.5MB in the end (delta: 52.4MB). Free memory was 41.6MB in the beginning and 48.0MB in the end (delta: -6.4MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 44.83ms. Allocated memory is still 119.5MB. Free memory was 48.0MB in the beginning and 43.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 197 PlacesBefore, 42 PlacesAfterwards, 205 TransitionsBefore, 40 TransitionsAfterwards, 12730 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 151 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 32 ConcurrentYvCompositions, 10 ChoiceCompositions, 234 TotalNumberOfCompositions, 19580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12870, independent: 12541, independent conditional: 0, independent unconditional: 12541, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7139, independent: 7070, independent conditional: 0, independent unconditional: 7070, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12870, independent: 5471, independent conditional: 0, independent unconditional: 5471, dependent: 260, dependent conditional: 0, dependent unconditional: 260, unknown: 7139, unknown conditional: 0, unknown unconditional: 7139] , Statistics on independence cache: Total cache size (in pairs): 254, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: 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, 284 locations, 19 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: 9.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 355 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 573 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 1 mSDtfsCounter, 573 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 10:46:39,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE