./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix004.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix004.opt.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 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:37:06,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:37:06,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:37:06,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:37:06,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:37:06,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:37:06,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:37:06,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:37:06,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:37:06,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:37:06,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:37:06,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:37:06,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:37:06,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:37:06,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:37:06,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:37:06,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:37:06,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:37:06,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:37:06,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:37:06,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:37:06,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:37:06,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:37:06,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:37:06,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:37:06,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:37:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:37:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:37:06,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:37:06,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:37:06,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:37:06,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:37:06,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:37:06,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:37:06,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:37:06,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:37:06,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:37:06,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:37:06,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:37:06,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:37:06,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:37:06,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:37:06,946 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:37:06,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:37:06,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:37:06,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:37:06,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:37:06,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:37:06,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:37:06,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:37:06,950 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:37:06,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:37:06,951 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:37:06,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:37:06,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:37:06,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:37:06,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:37:06,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:37:06,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:37:06,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:37:06,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:37:06,952 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:37:06,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:37:06,953 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:37:06,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:37:06,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:37:06,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:37:06,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:37:06,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:37:06,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:37:06,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:37:06,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:37:06,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:37:06,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:37:06,955 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:37:06,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:37:06,955 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:37:06,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:37:06,956 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:37:06,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:37:07,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:37:07,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:37:07,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:37:07,310 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:37:07,310 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:37:07,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix004.opt.i [2023-08-30 08:37:08,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:37:08,638 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:37:08,639 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix004.opt.i [2023-08-30 08:37:08,652 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cc5fb8f/6e1854f8312046328f9c6c11a95c258a/FLAG749fec195 [2023-08-30 08:37:08,666 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cc5fb8f/6e1854f8312046328f9c6c11a95c258a [2023-08-30 08:37:08,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:37:08,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:37:08,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:37:08,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:37:08,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:37:08,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fab0830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:08, skipping insertion in model container [2023-08-30 08:37:08,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:37:08" (1/1) ... [2023-08-30 08:37:08,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:37:08,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:37:08,841 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix004.opt.i[944,957] [2023-08-30 08:37:09,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:37:09,062 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:37:09,075 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix004.opt.i[944,957] [2023-08-30 08:37:09,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:37:09,216 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:37:09,217 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:37:09,223 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:37:09,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09 WrapperNode [2023-08-30 08:37:09,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:37:09,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:37:09,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:37:09,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:37:09,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,271 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2023-08-30 08:37:09,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:37:09,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:37:09,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:37:09,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:37:09,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:37:09,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:37:09,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:37:09,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:37:09,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (1/1) ... [2023-08-30 08:37:09,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:37:09,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:37:09,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:37:09,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:37:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:37:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:37:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:37:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:37:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:37:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:37:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:37:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:37:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:37:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:37:09,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:37:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:37:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:37:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:37:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:37:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:37:09,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:37:09,408 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:37:09,602 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:37:09,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:37:09,903 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:37:10,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:37:10,042 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:37:10,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:37:10 BoogieIcfgContainer [2023-08-30 08:37:10,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:37:10,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:37:10,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:37:10,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:37:10,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:37:08" (1/3) ... [2023-08-30 08:37:10,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222add18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:37:10, skipping insertion in model container [2023-08-30 08:37:10,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:37:09" (2/3) ... [2023-08-30 08:37:10,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222add18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:37:10, skipping insertion in model container [2023-08-30 08:37:10,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:37:10" (3/3) ... [2023-08-30 08:37:10,052 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2023-08-30 08:37:10,058 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:37:10,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:37:10,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:37:10,067 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:37:10,132 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:37:10,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2023-08-30 08:37:10,249 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-08-30 08:37:10,249 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:37:10,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-30 08:37:10,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2023-08-30 08:37:10,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2023-08-30 08:37:10,267 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:37:10,278 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 133 transitions, 278 flow [2023-08-30 08:37:10,280 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 133 transitions, 278 flow [2023-08-30 08:37:10,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 278 flow [2023-08-30 08:37:10,312 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-08-30 08:37:10,315 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:37:10,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-30 08:37:10,320 INFO L119 LiptonReduction]: Number of co-enabled transitions 3702 [2023-08-30 08:37:14,333 INFO L134 LiptonReduction]: Checked pairs total: 12532 [2023-08-30 08:37:14,334 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-30 08:37:14,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:37:14,351 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;@16d3aa0c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:37:14,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:37:14,355 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:37:14,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:37:14,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:14,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:37:14,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:14,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash 567324479, now seen corresponding path program 1 times [2023-08-30 08:37:14,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:14,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431216577] [2023-08-30 08:37:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:14,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:37:14,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431216577] [2023-08-30 08:37:14,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431216577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:14,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:14,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:37:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090869272] [2023-08-30 08:37:14,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:14,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:37:14,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:14,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:37:14,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:37:14,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-08-30 08:37:14,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:14,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:14,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-08-30 08:37:14,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:15,771 INFO L130 PetriNetUnfolder]: 6649/9350 cut-off events. [2023-08-30 08:37:15,772 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-08-30 08:37:15,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18872 conditions, 9350 events. 6649/9350 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 53388 event pairs, 1861 based on Foata normal form. 0/6575 useless extension candidates. Maximal degree in co-relation 18860. Up to 8623 conditions per place. [2023-08-30 08:37:15,845 INFO L137 encePairwiseOnDemand]: 230/244 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-08-30 08:37:15,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 229 flow [2023-08-30 08:37:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:37:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:37:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-08-30 08:37:15,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5409836065573771 [2023-08-30 08:37:15,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-08-30 08:37:15,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-08-30 08:37:15,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:15,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-08-30 08:37:15,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:15,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:15,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:15,879 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 82 flow. Second operand 3 states and 396 transitions. [2023-08-30 08:37:15,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 229 flow [2023-08-30 08:37:15,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 222 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:37:15,890 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 123 flow [2023-08-30 08:37:15,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-08-30 08:37:15,896 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-08-30 08:37:15,899 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 123 flow [2023-08-30 08:37:15,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:15,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:15,900 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:15,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:37:15,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:15,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -489546616, now seen corresponding path program 1 times [2023-08-30 08:37:15,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:15,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623063384] [2023-08-30 08:37:15,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:15,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:37:16,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:16,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623063384] [2023-08-30 08:37:16,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623063384] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:16,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:16,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:37:16,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756766367] [2023-08-30 08:37:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:16,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:37:16,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:16,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:37:16,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:37:16,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-08-30 08:37:16,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:16,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:16,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-08-30 08:37:16,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:16,807 INFO L130 PetriNetUnfolder]: 3813/5378 cut-off events. [2023-08-30 08:37:16,808 INFO L131 PetriNetUnfolder]: For 318/318 co-relation queries the response was YES. [2023-08-30 08:37:16,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13383 conditions, 5378 events. 3813/5378 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 27691 event pairs, 909 based on Foata normal form. 0/4449 useless extension candidates. Maximal degree in co-relation 13372. Up to 4650 conditions per place. [2023-08-30 08:37:16,874 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 41 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2023-08-30 08:37:16,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 50 transitions, 237 flow [2023-08-30 08:37:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:37:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:37:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-08-30 08:37:16,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5102459016393442 [2023-08-30 08:37:16,876 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-08-30 08:37:16,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-08-30 08:37:16,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:16,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-08-30 08:37:16,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:16,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:16,881 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:16,881 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 123 flow. Second operand 4 states and 498 transitions. [2023-08-30 08:37:16,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 50 transitions, 237 flow [2023-08-30 08:37:16,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:37:16,883 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 112 flow [2023-08-30 08:37:16,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2023-08-30 08:37:16,884 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-30 08:37:16,884 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 112 flow [2023-08-30 08:37:16,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:16,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:16,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:16,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:37:16,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:16,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:16,886 INFO L85 PathProgramCache]: Analyzing trace with hash -489546615, now seen corresponding path program 1 times [2023-08-30 08:37:16,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:16,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935900673] [2023-08-30 08:37:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:16,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:37:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:16,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935900673] [2023-08-30 08:37:16,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935900673] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:16,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:16,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:37:16,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428100859] [2023-08-30 08:37:16,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:16,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:37:16,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:16,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:37:16,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:37:16,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-08-30 08:37:16,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:16,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:16,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-08-30 08:37:16,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:17,390 INFO L130 PetriNetUnfolder]: 2366/3393 cut-off events. [2023-08-30 08:37:17,390 INFO L131 PetriNetUnfolder]: For 982/982 co-relation queries the response was YES. [2023-08-30 08:37:17,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8344 conditions, 3393 events. 2366/3393 cut-off events. For 982/982 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 16155 event pairs, 511 based on Foata normal form. 0/3172 useless extension candidates. Maximal degree in co-relation 8332. Up to 1450 conditions per place. [2023-08-30 08:37:17,408 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 55 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2023-08-30 08:37:17,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 68 transitions, 326 flow [2023-08-30 08:37:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:37:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:37:17,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-08-30 08:37:17,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286885245901639 [2023-08-30 08:37:17,411 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-08-30 08:37:17,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-08-30 08:37:17,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:17,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-08-30 08:37:17,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:17,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:17,415 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:17,416 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 112 flow. Second operand 4 states and 516 transitions. [2023-08-30 08:37:17,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 68 transitions, 326 flow [2023-08-30 08:37:17,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:37:17,418 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 164 flow [2023-08-30 08:37:17,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2023-08-30 08:37:17,419 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-08-30 08:37:17,419 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 164 flow [2023-08-30 08:37:17,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:17,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:17,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:17,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:37:17,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:17,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 334023432, now seen corresponding path program 1 times [2023-08-30 08:37:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692028571] [2023-08-30 08:37:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:37:17,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:17,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692028571] [2023-08-30 08:37:17,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692028571] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:17,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:17,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:37:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752144403] [2023-08-30 08:37:17,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:17,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:37:17,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:37:17,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:37:17,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-08-30 08:37:17,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:17,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:17,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-08-30 08:37:17,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:18,068 INFO L130 PetriNetUnfolder]: 2087/2952 cut-off events. [2023-08-30 08:37:18,068 INFO L131 PetriNetUnfolder]: For 1992/1992 co-relation queries the response was YES. [2023-08-30 08:37:18,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8507 conditions, 2952 events. 2087/2952 cut-off events. For 1992/1992 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13519 event pairs, 467 based on Foata normal form. 0/2917 useless extension candidates. Maximal degree in co-relation 8494. Up to 1216 conditions per place. [2023-08-30 08:37:18,088 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 63 selfloop transitions, 13 changer transitions 4/84 dead transitions. [2023-08-30 08:37:18,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 444 flow [2023-08-30 08:37:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:37:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:37:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 644 transitions. [2023-08-30 08:37:18,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5278688524590164 [2023-08-30 08:37:18,091 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 644 transitions. [2023-08-30 08:37:18,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 644 transitions. [2023-08-30 08:37:18,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:18,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 644 transitions. [2023-08-30 08:37:18,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,097 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 164 flow. Second operand 5 states and 644 transitions. [2023-08-30 08:37:18,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 444 flow [2023-08-30 08:37:18,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 426 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:37:18,103 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 188 flow [2023-08-30 08:37:18,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-08-30 08:37:18,104 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2023-08-30 08:37:18,104 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 188 flow [2023-08-30 08:37:18,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:37:18,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:37:18,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:37:18,105 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:37:18,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:37:18,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1606664332, now seen corresponding path program 1 times [2023-08-30 08:37:18,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:37:18,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333210459] [2023-08-30 08:37:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:37:18,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:37:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:37:18,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:37:18,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:37:18,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333210459] [2023-08-30 08:37:18,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333210459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:37:18,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:37:18,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:37:18,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279645432] [2023-08-30 08:37:18,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:37:18,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:37:18,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:37:18,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:37:18,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:37:18,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 244 [2023-08-30 08:37:18,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:37:18,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 244 [2023-08-30 08:37:18,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:37:18,684 INFO L130 PetriNetUnfolder]: 2060/2905 cut-off events. [2023-08-30 08:37:18,684 INFO L131 PetriNetUnfolder]: For 2514/2514 co-relation queries the response was YES. [2023-08-30 08:37:18,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8588 conditions, 2905 events. 2060/2905 cut-off events. For 2514/2514 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13289 event pairs, 467 based on Foata normal form. 16/2902 useless extension candidates. Maximal degree in co-relation 8574. Up to 1216 conditions per place. [2023-08-30 08:37:18,694 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2023-08-30 08:37:18,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 396 flow [2023-08-30 08:37:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:37:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:37:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2023-08-30 08:37:18,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5109289617486339 [2023-08-30 08:37:18,697 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 748 transitions. [2023-08-30 08:37:18,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 748 transitions. [2023-08-30 08:37:18,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:37:18,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 748 transitions. [2023-08-30 08:37:18,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,704 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,705 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 188 flow. Second operand 6 states and 748 transitions. [2023-08-30 08:37:18,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 396 flow [2023-08-30 08:37:18,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 76 transitions, 341 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:37:18,745 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-30 08:37:18,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-08-30 08:37:18,746 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2023-08-30 08:37:18,746 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-30 08:37:18,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:37:18,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:37:18,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:37:18,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:37:18,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:37:18,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:37:18,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:37:18,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:37:18,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:37:18,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:37:18,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:37:18,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:37:18,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:37:18,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:37:18,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:37:18,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:37:18,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:37:18,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:37:18,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:37:18,765 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:37:18,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:37:18,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:37:18,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:37:18,771 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:37:18,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:37:18,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:37:18 BasicIcfg [2023-08-30 08:37:18,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:37:18,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:37:18,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:37:18,775 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:37:18,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:37:10" (3/4) ... [2023-08-30 08:37:18,778 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:37:18,782 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:37:18,782 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:37:18,782 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:37:18,783 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:37:18,788 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 08:37:18,788 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 08:37:18,789 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:37:18,789 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:37:18,822 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:37:18,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:37:18,825 INFO L158 Benchmark]: Toolchain (without parser) took 10156.07ms. Allocated memory was 88.1MB in the beginning and 706.7MB in the end (delta: 618.7MB). Free memory was 64.7MB in the beginning and 448.1MB in the end (delta: -383.4MB). Peak memory consumption was 236.6MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,825 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:37:18,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.93ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 60.6MB in the end (delta: 3.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.49ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 57.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,826 INFO L158 Benchmark]: Boogie Preprocessor took 54.44ms. Allocated memory is still 88.1MB. Free memory was 57.8MB in the beginning and 55.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,826 INFO L158 Benchmark]: RCFGBuilder took 717.57ms. Allocated memory is still 88.1MB. Free memory was 55.7MB in the beginning and 40.8MB in the end (delta: 14.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,827 INFO L158 Benchmark]: TraceAbstraction took 8728.47ms. Allocated memory was 88.1MB in the beginning and 706.7MB in the end (delta: 618.7MB). Free memory was 40.1MB in the beginning and 451.2MB in the end (delta: -411.1MB). Peak memory consumption was 324.5MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,827 INFO L158 Benchmark]: Witness Printer took 49.36ms. Allocated memory is still 706.7MB. Free memory was 451.2MB in the beginning and 448.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:37:18,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.93ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 60.6MB in the end (delta: 3.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.49ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 57.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.44ms. Allocated memory is still 88.1MB. Free memory was 57.8MB in the beginning and 55.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.57ms. Allocated memory is still 88.1MB. Free memory was 55.7MB in the beginning and 40.8MB in the end (delta: 14.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8728.47ms. Allocated memory was 88.1MB in the beginning and 706.7MB in the end (delta: 618.7MB). Free memory was 40.1MB in the beginning and 451.2MB in the end (delta: -411.1MB). Peak memory consumption was 324.5MB. Max. memory is 16.1GB. * Witness Printer took 49.36ms. Allocated memory is still 706.7MB. Free memory was 451.2MB in the beginning and 448.1MB 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, 144 PlacesBefore, 47 PlacesAfterwards, 133 TransitionsBefore, 35 TransitionsAfterwards, 3702 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 12532 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4901, independent: 4576, independent conditional: 0, independent unconditional: 4576, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2024, independent: 1957, independent conditional: 0, independent unconditional: 1957, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4901, independent: 2619, independent conditional: 0, independent unconditional: 2619, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 2024, unknown conditional: 0, unknown unconditional: 2024] , Statistics on independence cache: Total cache size (in pairs): 244, Positive cache size: 217, Positive conditional cache size: 0, Positive unconditional cache size: 217, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: 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 9 procedures, 179 locations, 20 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: 8.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 13 mSDtfsCounter, 414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2023-08-30 08:37:18,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE