./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:20:13,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:20:13,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:20:14,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:20:14,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:20:14,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:20:14,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:20:14,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:20:14,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:20:14,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:20:14,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:20:14,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:20:14,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:20:14,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:20:14,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:20:14,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:20:14,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:20:14,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:20:14,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:20:14,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:20:14,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:20:14,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:20:14,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:20:14,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:20:14,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:20:14,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:20:14,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:20:14,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:20:14,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:20:14,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:20:14,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:20:14,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:20:14,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:20:14,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:20:14,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:20:14,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:20:14,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:20:14,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:20:14,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:20:14,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:20:14,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:20:14,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:20:14,068 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:20:14,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:20:14,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:20:14,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:20:14,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:20:14,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:20:14,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:20:14,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:20:14,071 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:20:14,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:20:14,072 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:20:14,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:20:14,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:20:14,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:20:14,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:20:14,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:20:14,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:20:14,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:20:14,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:20:14,074 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:20:14,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:20:14,075 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:20:14,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:20:14,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:20:14,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:20:14,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:20:14,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:20:14,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:20:14,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:20:14,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:20:14,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:20:14,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:20:14,078 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:20:14,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:20:14,078 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:20:14,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:20:14,079 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:20:14,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:20:14,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:20:14,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:20:14,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:20:14,403 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:20:14,403 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:20:14,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-09-01 06:20:15,781 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:20:16,090 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:20:16,091 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-09-01 06:20:16,102 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2cc511b1/05e7471b900149a993f4f017388e0aa4/FLAGc20317038 [2023-09-01 06:20:16,116 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2cc511b1/05e7471b900149a993f4f017388e0aa4 [2023-09-01 06:20:16,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:20:16,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:20:16,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:20:16,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:20:16,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:20:16,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4940b710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16, skipping insertion in model container [2023-09-01 06:20:16,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:20:16,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:20:16,307 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/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2023-09-01 06:20:16,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:20:16,428 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:20:16,438 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/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2023-09-01 06:20:16,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:20:16,499 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:20:16,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16 WrapperNode [2023-09-01 06:20:16,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:20:16,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:20:16,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:20:16,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:20:16,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,544 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 104 [2023-09-01 06:20:16,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:20:16,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:20:16,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:20:16,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:20:16,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:20:16,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:20:16,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:20:16,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:20:16,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (1/1) ... [2023-09-01 06:20:16,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:20:16,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:20:16,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 06:20:16,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 06:20:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:20:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-09-01 06:20:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-09-01 06:20:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:20:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:20:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:20:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:20:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:20:16,727 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:20:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:20:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:20:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:20:16,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:20:16,729 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:20:16,850 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:20:16,852 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:20:17,200 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:20:17,208 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:20:17,208 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:20:17,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:20:17 BoogieIcfgContainer [2023-09-01 06:20:17,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:20:17,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:20:17,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:20:17,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:20:17,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:20:16" (1/3) ... [2023-09-01 06:20:17,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300e092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:20:17, skipping insertion in model container [2023-09-01 06:20:17,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:20:16" (2/3) ... [2023-09-01 06:20:17,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300e092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:20:17, skipping insertion in model container [2023-09-01 06:20:17,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:20:17" (3/3) ... [2023-09-01 06:20:17,218 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2023-09-01 06:20:17,225 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:20:17,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:20:17,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 06:20:17,234 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:20:17,306 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 06:20:17,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 159 transitions, 334 flow [2023-09-01 06:20:17,462 INFO L130 PetriNetUnfolder]: 4/157 cut-off events. [2023-09-01 06:20:17,463 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 06:20:17,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 4/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2023-09-01 06:20:17,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 159 transitions, 334 flow [2023-09-01 06:20:17,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 148 transitions, 305 flow [2023-09-01 06:20:17,484 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:20:17,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 148 transitions, 305 flow [2023-09-01 06:20:17,512 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 148 transitions, 305 flow [2023-09-01 06:20:17,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 148 transitions, 305 flow [2023-09-01 06:20:17,563 INFO L130 PetriNetUnfolder]: 4/148 cut-off events. [2023-09-01 06:20:17,563 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 06:20:17,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 148 events. 4/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2023-09-01 06:20:17,569 INFO L119 LiptonReduction]: Number of co-enabled transitions 6916 [2023-09-01 06:20:21,651 INFO L134 LiptonReduction]: Checked pairs total: 20452 [2023-09-01 06:20:21,652 INFO L136 LiptonReduction]: Total number of compositions: 125 [2023-09-01 06:20:21,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:20:21,671 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;@4dc610a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:20:21,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-09-01 06:20:21,675 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 06:20:21,675 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:20:21,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:21,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 06:20:21,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 06:20:21,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash 16742456, now seen corresponding path program 1 times [2023-09-01 06:20:21,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:21,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070582350] [2023-09-01 06:20:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:21,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:21,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:21,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070582350] [2023-09-01 06:20:21,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070582350] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:21,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:21,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:20:21,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682479052] [2023-09-01 06:20:21,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:21,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:20:21,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:21,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:20:21,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:20:21,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 284 [2023-09-01 06:20:21,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:21,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:21,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 284 [2023-09-01 06:20:21,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:22,682 INFO L130 PetriNetUnfolder]: 3584/5900 cut-off events. [2023-09-01 06:20:22,683 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 06:20:22,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11588 conditions, 5900 events. 3584/5900 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 38107 event pairs, 988 based on Foata normal form. 264/4728 useless extension candidates. Maximal degree in co-relation 11483. Up to 4228 conditions per place. [2023-09-01 06:20:22,718 INFO L137 encePairwiseOnDemand]: 275/284 looper letters, 69 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-09-01 06:20:22,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 304 flow [2023-09-01 06:20:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:20:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:20:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-09-01 06:20:22,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5997652582159625 [2023-09-01 06:20:22,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-09-01 06:20:22,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-09-01 06:20:22,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:22,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-09-01 06:20:22,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:22,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:22,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:22,757 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 113 flow. Second operand 3 states and 511 transitions. [2023-09-01 06:20:22,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 304 flow [2023-09-01 06:20:22,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 75 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:20:22,765 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 108 flow [2023-09-01 06:20:22,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2023-09-01 06:20:22,770 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2023-09-01 06:20:22,770 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 108 flow [2023-09-01 06:20:22,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:22,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:22,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:20:22,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:20:22,772 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 06:20:22,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1087900393, now seen corresponding path program 1 times [2023-09-01 06:20:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438657630] [2023-09-01 06:20:22,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:22,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:22,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438657630] [2023-09-01 06:20:22,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438657630] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:22,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:22,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:20:22,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293722773] [2023-09-01 06:20:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:22,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:20:22,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:22,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:20:22,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:20:22,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 284 [2023-09-01 06:20:22,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:22,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:22,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 284 [2023-09-01 06:20:22,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:23,276 INFO L130 PetriNetUnfolder]: 2535/4379 cut-off events. [2023-09-01 06:20:23,276 INFO L131 PetriNetUnfolder]: For 228/228 co-relation queries the response was YES. [2023-09-01 06:20:23,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8845 conditions, 4379 events. 2535/4379 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 28190 event pairs, 765 based on Foata normal form. 0/3647 useless extension candidates. Maximal degree in co-relation 6975. Up to 2818 conditions per place. [2023-09-01 06:20:23,299 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 65 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2023-09-01 06:20:23,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 72 transitions, 300 flow [2023-09-01 06:20:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:20:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:20:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2023-09-01 06:20:23,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5892018779342723 [2023-09-01 06:20:23,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 502 transitions. [2023-09-01 06:20:23,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 502 transitions. [2023-09-01 06:20:23,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:23,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 502 transitions. [2023-09-01 06:20:23,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,317 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 108 flow. Second operand 3 states and 502 transitions. [2023-09-01 06:20:23,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 72 transitions, 300 flow [2023-09-01 06:20:23,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:20:23,320 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 108 flow [2023-09-01 06:20:23,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2023-09-01 06:20:23,321 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2023-09-01 06:20:23,321 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 108 flow [2023-09-01 06:20:23,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:23,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:23,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:20:23,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 06:20:23,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash 558770835, now seen corresponding path program 1 times [2023-09-01 06:20:23,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:23,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90489699] [2023-09-01 06:20:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:23,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:23,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:23,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90489699] [2023-09-01 06:20:23,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90489699] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:23,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:23,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:20:23,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063896771] [2023-09-01 06:20:23,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:23,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:20:23,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:23,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:20:23,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:20:23,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-09-01 06:20:23,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:23,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-09-01 06:20:23,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:23,941 INFO L130 PetriNetUnfolder]: 2535/4218 cut-off events. [2023-09-01 06:20:23,942 INFO L131 PetriNetUnfolder]: For 286/286 co-relation queries the response was YES. [2023-09-01 06:20:23,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8903 conditions, 4218 events. 2535/4218 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 26758 event pairs, 437 based on Foata normal form. 0/3710 useless extension candidates. Maximal degree in co-relation 7898. Up to 1475 conditions per place. [2023-09-01 06:20:23,964 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 113 selfloop transitions, 4 changer transitions 3/124 dead transitions. [2023-09-01 06:20:23,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 124 transitions, 531 flow [2023-09-01 06:20:23,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:20:23,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:20:23,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 821 transitions. [2023-09-01 06:20:23,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.578169014084507 [2023-09-01 06:20:23,968 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 821 transitions. [2023-09-01 06:20:23,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 821 transitions. [2023-09-01 06:20:23,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:23,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 821 transitions. [2023-09-01 06:20:23,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.2) internal successors, (821), 5 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,974 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,974 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 108 flow. Second operand 5 states and 821 transitions. [2023-09-01 06:20:23,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 124 transitions, 531 flow [2023-09-01 06:20:23,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 124 transitions, 521 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:20:23,977 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 110 flow [2023-09-01 06:20:23,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2023-09-01 06:20:23,978 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2023-09-01 06:20:23,978 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 110 flow [2023-09-01 06:20:23,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:23,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:23,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:23,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 06:20:23,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 06:20:23,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:23,980 INFO L85 PathProgramCache]: Analyzing trace with hash 558770851, now seen corresponding path program 1 times [2023-09-01 06:20:23,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:23,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302949015] [2023-09-01 06:20:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:23,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:24,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:24,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302949015] [2023-09-01 06:20:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302949015] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:24,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:24,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:20:24,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27299757] [2023-09-01 06:20:24,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:24,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:20:24,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:24,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:20:24,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:20:24,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-09-01 06:20:24,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:24,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-09-01 06:20:24,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:24,558 INFO L130 PetriNetUnfolder]: 2225/3738 cut-off events. [2023-09-01 06:20:24,559 INFO L131 PetriNetUnfolder]: For 277/277 co-relation queries the response was YES. [2023-09-01 06:20:24,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8215 conditions, 3738 events. 2225/3738 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23079 event pairs, 419 based on Foata normal form. 0/3438 useless extension candidates. Maximal degree in co-relation 7230. Up to 1475 conditions per place. [2023-09-01 06:20:24,579 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 103 selfloop transitions, 4 changer transitions 13/123 dead transitions. [2023-09-01 06:20:24,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 123 transitions, 525 flow [2023-09-01 06:20:24,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:20:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:20:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 820 transitions. [2023-09-01 06:20:24,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5774647887323944 [2023-09-01 06:20:24,583 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 820 transitions. [2023-09-01 06:20:24,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 820 transitions. [2023-09-01 06:20:24,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:24,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 820 transitions. [2023-09-01 06:20:24,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,590 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,590 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 110 flow. Second operand 5 states and 820 transitions. [2023-09-01 06:20:24,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 123 transitions, 525 flow [2023-09-01 06:20:24,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 123 transitions, 517 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:20:24,595 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 100 flow [2023-09-01 06:20:24,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2023-09-01 06:20:24,596 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2023-09-01 06:20:24,596 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 100 flow [2023-09-01 06:20:24,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:24,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:24,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 06:20:24,598 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 06:20:24,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:24,599 INFO L85 PathProgramCache]: Analyzing trace with hash 182484508, now seen corresponding path program 1 times [2023-09-01 06:20:24,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:24,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569569873] [2023-09-01 06:20:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:24,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:24,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:24,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:24,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569569873] [2023-09-01 06:20:24,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569569873] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:24,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:24,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:20:24,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654591211] [2023-09-01 06:20:24,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:24,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:20:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:24,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:20:24,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:20:24,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-09-01 06:20:24,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:24,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-09-01 06:20:24,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:24,955 INFO L130 PetriNetUnfolder]: 995/1776 cut-off events. [2023-09-01 06:20:24,955 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2023-09-01 06:20:24,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3862 conditions, 1776 events. 995/1776 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9566 event pairs, 332 based on Foata normal form. 0/1772 useless extension candidates. Maximal degree in co-relation 2723. Up to 711 conditions per place. [2023-09-01 06:20:24,966 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 81 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2023-09-01 06:20:24,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 88 transitions, 386 flow [2023-09-01 06:20:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:20:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:20:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 785 transitions. [2023-09-01 06:20:24,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528169014084507 [2023-09-01 06:20:24,970 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 785 transitions. [2023-09-01 06:20:24,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 785 transitions. [2023-09-01 06:20:24,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:24,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 785 transitions. [2023-09-01 06:20:24,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,977 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 100 flow. Second operand 5 states and 785 transitions. [2023-09-01 06:20:24,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 88 transitions, 386 flow [2023-09-01 06:20:24,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 88 transitions, 370 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:20:24,979 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 96 flow [2023-09-01 06:20:24,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2023-09-01 06:20:24,980 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-09-01 06:20:24,980 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 96 flow [2023-09-01 06:20:24,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:24,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:20:24,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:20:24,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 06:20:24,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 06:20:24,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:20:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash 182484496, now seen corresponding path program 1 times [2023-09-01 06:20:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:20:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006908589] [2023-09-01 06:20:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:20:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:20:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:20:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:20:25,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:20:25,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006908589] [2023-09-01 06:20:25,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006908589] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:20:25,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:20:25,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:20:25,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43183717] [2023-09-01 06:20:25,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:20:25,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:20:25,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:20:25,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:20:25,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:20:25,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 284 [2023-09-01 06:20:25,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:25,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:20:25,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 284 [2023-09-01 06:20:25,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:20:25,299 INFO L130 PetriNetUnfolder]: 765/1417 cut-off events. [2023-09-01 06:20:25,300 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2023-09-01 06:20:25,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 1417 events. 765/1417 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7443 event pairs, 325 based on Foata normal form. 129/1542 useless extension candidates. Maximal degree in co-relation 2272. Up to 584 conditions per place. [2023-09-01 06:20:25,304 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2023-09-01 06:20:25,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 87 transitions, 372 flow [2023-09-01 06:20:25,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 06:20:25,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 06:20:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 784 transitions. [2023-09-01 06:20:25,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5521126760563381 [2023-09-01 06:20:25,307 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 784 transitions. [2023-09-01 06:20:25,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 784 transitions. [2023-09-01 06:20:25,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:20:25,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 784 transitions. [2023-09-01 06:20:25,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.8) internal successors, (784), 5 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:25,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:25,312 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:25,312 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 96 flow. Second operand 5 states and 784 transitions. [2023-09-01 06:20:25,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 87 transitions, 372 flow [2023-09-01 06:20:25,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 87 transitions, 367 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 06:20:25,315 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2023-09-01 06:20:25,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2023-09-01 06:20:25,316 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-09-01 06:20:25,316 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2023-09-01 06:20:25,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:20:25,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-09-01 06:20:25,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-09-01 06:20:25,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-09-01 06:20:25,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-09-01 06:20:25,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2023-09-01 06:20:25,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2023-09-01 06:20:25,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-09-01 06:20:25,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-09-01 06:20:25,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-09-01 06:20:25,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-09-01 06:20:25,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-09-01 06:20:25,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-09-01 06:20:25,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-09-01 06:20:25,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-09-01 06:20:25,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-09-01 06:20:25,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-09-01 06:20:25,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-09-01 06:20:25,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-09-01 06:20:25,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:20:25,323 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 06:20:25,328 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:20:25,329 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:20:25,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:20:25 BasicIcfg [2023-09-01 06:20:25,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:20:25,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:20:25,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:20:25,333 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:20:25,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:20:17" (3/4) ... [2023-09-01 06:20:25,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:20:25,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-09-01 06:20:25,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:20:25,344 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-09-01 06:20:25,345 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 06:20:25,345 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:20:25,345 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 06:20:25,377 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:20:25,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:20:25,378 INFO L158 Benchmark]: Toolchain (without parser) took 9258.19ms. Allocated memory was 100.7MB in the beginning and 350.2MB in the end (delta: 249.6MB). Free memory was 77.4MB in the beginning and 209.7MB in the end (delta: -132.2MB). Peak memory consumption was 118.5MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,379 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:20:25,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.95ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 57.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.47ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,379 INFO L158 Benchmark]: Boogie Preprocessor took 67.94ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 53.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,380 INFO L158 Benchmark]: RCFGBuilder took 594.06ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 63.7MB in the end (delta: -9.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,380 INFO L158 Benchmark]: TraceAbstraction took 8119.74ms. Allocated memory was 100.7MB in the beginning and 350.2MB in the end (delta: 249.6MB). Free memory was 62.9MB in the beginning and 212.8MB in the end (delta: -149.9MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,380 INFO L158 Benchmark]: Witness Printer took 45.54ms. Allocated memory is still 350.2MB. Free memory was 212.8MB in the beginning and 209.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:20:25,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 67.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.95ms. Allocated memory is still 100.7MB. Free memory was 77.2MB in the beginning and 57.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.47ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.94ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 53.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.06ms. Allocated memory is still 100.7MB. Free memory was 53.9MB in the beginning and 63.7MB in the end (delta: -9.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8119.74ms. Allocated memory was 100.7MB in the beginning and 350.2MB in the end (delta: 249.6MB). Free memory was 62.9MB in the beginning and 212.8MB in the end (delta: -149.9MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. * Witness Printer took 45.54ms. Allocated memory is still 350.2MB. Free memory was 212.8MB in the beginning and 209.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 151 PlacesBefore, 56 PlacesAfterwards, 148 TransitionsBefore, 52 TransitionsAfterwards, 6916 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 125 TotalNumberOfCompositions, 20452 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6983, independent: 6512, independent conditional: 0, independent unconditional: 6512, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3646, independent: 3542, independent conditional: 0, independent unconditional: 3542, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6983, independent: 2970, independent conditional: 0, independent unconditional: 2970, dependent: 367, dependent conditional: 0, dependent unconditional: 367, unknown: 3646, unknown conditional: 0, unknown unconditional: 3646] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 184, Positive conditional cache size: 0, Positive unconditional cache size: 184, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: 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 5 procedures, 212 locations, 18 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: 8.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 559 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 471 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1088 IncrementalHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 21 mSDtfsCounter, 1088 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, 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, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:20:25,399 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