./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.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 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:03:09,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:03:09,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:03:09,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:03:09,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:03:09,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:03:09,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:03:09,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:03:09,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:03:09,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:03:09,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:03:09,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:03:09,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:03:09,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:03:09,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:03:09,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:03:09,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:03:09,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:03:09,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:03:09,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:03:09,305 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:03:09,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:03:09,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:03:09,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:03:09,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:03:09,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:03:09,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:03:09,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:03:09,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:03:09,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:03:09,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:03:09,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:03:09,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:03:09,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:03:09,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:03:09,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:03:09,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:03:09,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:03:09,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:03:09,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:03:09,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:03:09,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:03:09,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:03:09,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:03:09,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:03:09,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:03:09,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:03:09,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:03:09,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:03:09,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:03:09,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:03:09,347 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:03:09,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:03:09,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:03:09,348 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:03:09,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:03:09,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:03:09,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:03:09,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:03:09,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:03:09,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:03:09,349 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:03:09,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:03:09,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:03:09,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:03:09,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:03:09,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:03:09,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:03:09,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:03:09,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:03:09,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:03:09,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:03:09,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:03:09,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:03:09,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:03:09,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:03:09,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e [2022-07-14 14:03:09,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:03:09,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:03:09,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:03:09,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:03:09,583 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:03:09,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2022-07-14 14:03:09,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1784b9c/6f18fa06d6954c299729d47b68d9500d/FLAG417cf7976 [2022-07-14 14:03:10,039 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:03:10,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2022-07-14 14:03:10,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1784b9c/6f18fa06d6954c299729d47b68d9500d/FLAG417cf7976 [2022-07-14 14:03:10,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1784b9c/6f18fa06d6954c299729d47b68d9500d [2022-07-14 14:03:10,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:03:10,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:03:10,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:03:10,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:03:10,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:03:10,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c398209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10, skipping insertion in model container [2022-07-14 14:03:10,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:03:10,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:03:10,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:03:10,753 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:03:10,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:03:10,836 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:03:10,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10 WrapperNode [2022-07-14 14:03:10,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:03:10,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:03:10,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:03:10,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:03:10,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,883 INFO L137 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-07-14 14:03:10,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:03:10,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:03:10,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:03:10,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:03:10,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:03:10,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:03:10,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:03:10,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:03:10,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (1/1) ... [2022-07-14 14:03:10,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:03:10,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:10,945 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) [2022-07-14 14:03:10,954 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 [2022-07-14 14:03:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:03:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:03:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:03:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:03:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:03:10,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:03:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:03:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:03:10,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:03:10,983 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:03:11,055 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:03:11,058 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:03:11,200 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:03:11,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:03:11,211 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:03:11,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:11 BoogieIcfgContainer [2022-07-14 14:03:11,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:03:11,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:03:11,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:03:11,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:03:11,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:03:10" (1/3) ... [2022-07-14 14:03:11,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edd5a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:03:11, skipping insertion in model container [2022-07-14 14:03:11,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:10" (2/3) ... [2022-07-14 14:03:11,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edd5a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:03:11, skipping insertion in model container [2022-07-14 14:03:11,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:11" (3/3) ... [2022-07-14 14:03:11,221 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2022-07-14 14:03:11,225 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:03:11,232 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:03:11,232 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 14:03:11,232 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:03:11,261 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:03:11,282 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:03:11,290 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 61 transitions, 127 flow [2022-07-14 14:03:11,292 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 61 transitions, 127 flow [2022-07-14 14:03:11,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 61 transitions, 127 flow [2022-07-14 14:03:11,311 INFO L129 PetriNetUnfolder]: 2/60 cut-off events. [2022-07-14 14:03:11,312 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:03:11,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 2/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-07-14 14:03:11,314 INFO L116 LiptonReduction]: Number of co-enabled transitions 468 [2022-07-14 14:03:12,646 INFO L131 LiptonReduction]: Checked pairs total: 542 [2022-07-14 14:03:12,646 INFO L133 LiptonReduction]: Total number of compositions: 59 [2022-07-14 14:03:12,652 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 15 transitions, 35 flow [2022-07-14 14:03:12,660 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 27 states have internal predecessors, (42), 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) [2022-07-14 14:03:12,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:03:12,675 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@773ee4db, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c90f93e [2022-07-14 14:03:12,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-14 14:03:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 27 states have internal predecessors, (42), 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) [2022-07-14 14:03:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:03:12,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:12,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:03:12,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 7462, now seen corresponding path program 1 times [2022-07-14 14:03:12,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:12,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758092173] [2022-07-14 14:03:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:12,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:12,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:12,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758092173] [2022-07-14 14:03:12,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758092173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:12,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:12,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:03:12,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579904818] [2022-07-14 14:03:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:12,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 14:03:12,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:12,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:03:12,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:03:12,812 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 27 states have internal predecessors, (42), 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) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-14 14:03:12,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:12,837 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2022-07-14 14:03:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:03:12,838 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-07-14 14:03:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:12,843 INFO L225 Difference]: With dead ends: 27 [2022-07-14 14:03:12,843 INFO L226 Difference]: Without dead ends: 25 [2022-07-14 14:03:12,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:03:12,847 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:12,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:12,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-14 14:03:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-07-14 14:03:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 2.3125) internal successors, (37), 24 states have internal predecessors, (37), 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) [2022-07-14 14:03:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 37 transitions. [2022-07-14 14:03:12,872 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 37 transitions. Word has length 2 [2022-07-14 14:03:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:12,872 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 37 transitions. [2022-07-14 14:03:12,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-14 14:03:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2022-07-14 14:03:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:03:12,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:12,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:03:12,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:03:12,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:12,874 INFO L85 PathProgramCache]: Analyzing trace with hash 7473, now seen corresponding path program 1 times [2022-07-14 14:03:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108954335] [2022-07-14 14:03:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:12,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:12,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:12,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108954335] [2022-07-14 14:03:12,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108954335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:12,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:12,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:03:12,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631968808] [2022-07-14 14:03:12,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:03:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:03:12,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:12,941 INFO L87 Difference]: Start difference. First operand 25 states and 37 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-14 14:03:12,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:12,961 INFO L93 Difference]: Finished difference Result 26 states and 38 transitions. [2022-07-14 14:03:12,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:12,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-07-14 14:03:12,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:12,965 INFO L225 Difference]: With dead ends: 26 [2022-07-14 14:03:12,965 INFO L226 Difference]: Without dead ends: 26 [2022-07-14 14:03:12,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:12,968 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:12,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:12,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-14 14:03:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-07-14 14:03:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 2.235294117647059) internal successors, (38), 25 states have internal predecessors, (38), 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) [2022-07-14 14:03:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 38 transitions. [2022-07-14 14:03:12,976 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 38 transitions. Word has length 2 [2022-07-14 14:03:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:12,976 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 38 transitions. [2022-07-14 14:03:12,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-14 14:03:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2022-07-14 14:03:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:03:12,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:12,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:03:12,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:03:12,977 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:12,978 INFO L85 PathProgramCache]: Analyzing trace with hash 231882, now seen corresponding path program 1 times [2022-07-14 14:03:12,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:12,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118081341] [2022-07-14 14:03:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:12,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:13,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118081341] [2022-07-14 14:03:13,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118081341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:13,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:13,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:03:13,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347316710] [2022-07-14 14:03:13,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:13,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:03:13,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:13,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:03:13,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:13,004 INFO L87 Difference]: Start difference. First operand 26 states and 38 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-14 14:03:13,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:13,020 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2022-07-14 14:03:13,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:13,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:03:13,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:13,021 INFO L225 Difference]: With dead ends: 25 [2022-07-14 14:03:13,021 INFO L226 Difference]: Without dead ends: 25 [2022-07-14 14:03:13,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:13,022 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:13,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:13,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-14 14:03:13,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-07-14 14:03:13,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 2.176470588235294) internal successors, (37), 24 states have internal predecessors, (37), 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) [2022-07-14 14:03:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 37 transitions. [2022-07-14 14:03:13,030 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 37 transitions. Word has length 3 [2022-07-14 14:03:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:13,030 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 37 transitions. [2022-07-14 14:03:13,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-07-14 14:03:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2022-07-14 14:03:13,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:03:13,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:13,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:03:13,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:03:13,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:13,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash 222850020, now seen corresponding path program 1 times [2022-07-14 14:03:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185145896] [2022-07-14 14:03:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:13,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185145896] [2022-07-14 14:03:13,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185145896] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:13,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831111019] [2022-07-14 14:03:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:13,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:13,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:13,081 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:13,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:03:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:03:13,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:03:13,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831111019] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:03:13,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:03:13,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-14 14:03:13,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030506943] [2022-07-14 14:03:13,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:03:13,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:13,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:13,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:13,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:13,247 INFO L87 Difference]: Start difference. First operand 25 states and 37 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-07-14 14:03:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:13,269 INFO L93 Difference]: Finished difference Result 28 states and 40 transitions. [2022-07-14 14:03:13,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:03:13,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) Word has length 5 [2022-07-14 14:03:13,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:13,270 INFO L225 Difference]: With dead ends: 28 [2022-07-14 14:03:13,270 INFO L226 Difference]: Without dead ends: 28 [2022-07-14 14:03:13,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:13,272 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:13,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:13,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-14 14:03:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-14 14:03:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 2.0) internal successors, (40), 27 states have internal predecessors, (40), 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) [2022-07-14 14:03:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2022-07-14 14:03:13,280 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 5 [2022-07-14 14:03:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:13,280 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2022-07-14 14:03:13,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-07-14 14:03:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2022-07-14 14:03:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:03:13,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:13,280 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-07-14 14:03:13,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:13,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:13,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1225650229, now seen corresponding path program 2 times [2022-07-14 14:03:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:13,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309971190] [2022-07-14 14:03:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,535 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:03:13,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:13,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309971190] [2022-07-14 14:03:13,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309971190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:13,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:13,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:03:13,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775470908] [2022-07-14 14:03:13,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:13,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:03:13,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:13,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:03:13,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:13,537 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-07-14 14:03:13,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:13,554 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-07-14 14:03:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:13,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 8 [2022-07-14 14:03:13,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:13,555 INFO L225 Difference]: With dead ends: 23 [2022-07-14 14:03:13,555 INFO L226 Difference]: Without dead ends: 23 [2022-07-14 14:03:13,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:13,556 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:13,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:13,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-14 14:03:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-07-14 14:03:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.625) internal successors, (26), 20 states have internal predecessors, (26), 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) [2022-07-14 14:03:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-07-14 14:03:13,567 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 8 [2022-07-14 14:03:13,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:13,568 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-07-14 14:03:13,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-07-14 14:03:13,568 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-07-14 14:03:13,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:03:13,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:13,569 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-07-14 14:03:13,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 14:03:13,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1225650228, now seen corresponding path program 1 times [2022-07-14 14:03:13,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:13,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594600168] [2022-07-14 14:03:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:13,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:03:13,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:13,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594600168] [2022-07-14 14:03:13,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594600168] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:13,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:13,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:03:13,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753017064] [2022-07-14 14:03:13,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:13,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:03:13,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:13,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:03:13,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:13,613 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-07-14 14:03:13,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:13,630 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-07-14 14:03:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:13,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 8 [2022-07-14 14:03:13,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:13,631 INFO L225 Difference]: With dead ends: 16 [2022-07-14 14:03:13,631 INFO L226 Difference]: Without dead ends: 16 [2022-07-14 14:03:13,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:13,632 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:13,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:13,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-14 14:03:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-14 14:03:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-07-14 14:03:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-14 14:03:13,635 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2022-07-14 14:03:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:13,636 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-14 14:03:13,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-07-14 14:03:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-14 14:03:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 14:03:13,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:13,636 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:13,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:03:13,637 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:13,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1028822860, now seen corresponding path program 1 times [2022-07-14 14:03:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:13,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641857518] [2022-07-14 14:03:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:13,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:13,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641857518] [2022-07-14 14:03:13,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641857518] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:13,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949757241] [2022-07-14 14:03:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:13,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:13,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:13,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:13,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:03:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:13,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:03:13,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:03:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:03:13,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949757241] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:03:13,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:03:13,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-14 14:03:13,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984393684] [2022-07-14 14:03:13,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:03:13,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 14:03:13,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:13,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 14:03:13,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:03:13,850 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-07-14 14:03:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:13,888 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-07-14 14:03:13,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:03:13,888 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) Word has length 10 [2022-07-14 14:03:13,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:13,888 INFO L225 Difference]: With dead ends: 22 [2022-07-14 14:03:13,889 INFO L226 Difference]: Without dead ends: 22 [2022-07-14 14:03:13,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:03:13,891 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:13,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-14 14:03:13,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-14 14:03:13,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 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) [2022-07-14 14:03:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-07-14 14:03:13,897 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 10 [2022-07-14 14:03:13,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:13,898 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-07-14 14:03:13,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2022-07-14 14:03:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-07-14 14:03:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 14:03:13,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:13,903 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:13,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:14,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-14 14:03:14,120 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:14,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1210586604, now seen corresponding path program 2 times [2022-07-14 14:03:14,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:14,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030635599] [2022-07-14 14:03:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:14,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 14:03:14,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:14,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030635599] [2022-07-14 14:03:14,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030635599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:14,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:14,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:03:14,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298092808] [2022-07-14 14:03:14,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:14,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:03:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:14,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:03:14,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:03:14,196 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:14,216 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-07-14 14:03:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:03:14,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 16 [2022-07-14 14:03:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:14,217 INFO L225 Difference]: With dead ends: 21 [2022-07-14 14:03:14,217 INFO L226 Difference]: Without dead ends: 21 [2022-07-14 14:03:14,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:03:14,218 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:14,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:14,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-14 14:03:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-14 14:03:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-07-14 14:03:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-07-14 14:03:14,220 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 16 [2022-07-14 14:03:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:14,220 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-07-14 14:03:14,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-07-14 14:03:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 14:03:14,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:14,220 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:14,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 14:03:14,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1210586602, now seen corresponding path program 1 times [2022-07-14 14:03:14,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:14,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606866404] [2022-07-14 14:03:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:14,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 14:03:14,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:14,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606866404] [2022-07-14 14:03:14,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606866404] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:14,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:14,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:03:14,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420813959] [2022-07-14 14:03:14,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:14,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:03:14,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:14,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:03:14,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:03:14,277 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:14,304 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-07-14 14:03:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:03:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 16 [2022-07-14 14:03:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:14,305 INFO L225 Difference]: With dead ends: 20 [2022-07-14 14:03:14,305 INFO L226 Difference]: Without dead ends: 18 [2022-07-14 14:03:14,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:03:14,306 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:14,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:14,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-14 14:03:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-14 14:03:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-07-14 14:03:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-07-14 14:03:14,307 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2022-07-14 14:03:14,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:14,307 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-07-14 14:03:14,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-07-14 14:03:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 14:03:14,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:14,308 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:14,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 14:03:14,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:14,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:14,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1210583415, now seen corresponding path program 1 times [2022-07-14 14:03:14,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:14,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031551613] [2022-07-14 14:03:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:14,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 14:03:14,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:14,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031551613] [2022-07-14 14:03:14,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031551613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:14,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:14,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:03:14,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636043364] [2022-07-14 14:03:14,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:14,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:03:14,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:14,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:03:14,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:03:14,359 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:14,375 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-14 14:03:14,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:03:14,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 16 [2022-07-14 14:03:14,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:14,376 INFO L225 Difference]: With dead ends: 17 [2022-07-14 14:03:14,376 INFO L226 Difference]: Without dead ends: 17 [2022-07-14 14:03:14,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:03:14,376 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:14,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-14 14:03:14,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-14 14:03:14,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-07-14 14:03:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-14 14:03:14,378 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 16 [2022-07-14 14:03:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:14,378 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-14 14:03:14,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-14 14:03:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 14:03:14,378 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:14,379 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:14,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 14:03:14,379 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:03:14,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1210583414, now seen corresponding path program 1 times [2022-07-14 14:03:14,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:14,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285571951] [2022-07-14 14:03:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:14,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 14:03:14,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:14,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285571951] [2022-07-14 14:03:14,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285571951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:14,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:14,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:03:14,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652666869] [2022-07-14 14:03:14,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:14,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:03:14,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:14,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:03:14,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:03:14,409 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:14,418 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-07-14 14:03:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:03:14,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 16 [2022-07-14 14:03:14,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:14,418 INFO L225 Difference]: With dead ends: 16 [2022-07-14 14:03:14,418 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:03:14,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:03:14,419 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:14,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:14,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:03:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:03:14,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-14 14:03:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:03:14,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-07-14 14:03:14,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:14,420 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:03:14,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-07-14 14:03:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:03:14,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:03:14,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-07-14 14:03:14,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-07-14 14:03:14,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 14:03:14,424 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:14,426 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:03:14,426 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:03:14,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:03:14 BasicIcfg [2022-07-14 14:03:14,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:03:14,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:03:14,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:03:14,428 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:03:14,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:11" (3/4) ... [2022-07-14 14:03:14,430 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:03:14,434 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:03:14,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-14 14:03:14,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-14 14:03:14,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 14:03:14,452 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:03:14,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:03:14,453 INFO L158 Benchmark]: Toolchain (without parser) took 3996.91ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 47.7MB in the beginning and 68.6MB in the end (delta: -20.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-07-14 14:03:14,453 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:03:14,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.79ms. Allocated memory is still 90.2MB. Free memory was 47.5MB in the beginning and 50.8MB in the end (delta: -3.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:03:14,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.87ms. Allocated memory is still 90.2MB. Free memory was 50.8MB in the beginning and 48.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:03:14,453 INFO L158 Benchmark]: Boogie Preprocessor took 28.19ms. Allocated memory is still 90.2MB. Free memory was 48.8MB in the beginning and 47.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:03:14,454 INFO L158 Benchmark]: RCFGBuilder took 302.18ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 47.5MB in the beginning and 103.0MB in the end (delta: -55.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-07-14 14:03:14,454 INFO L158 Benchmark]: TraceAbstraction took 3212.05ms. Allocated memory is still 127.9MB. Free memory was 102.2MB in the beginning and 70.7MB in the end (delta: 31.5MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-07-14 14:03:14,454 INFO L158 Benchmark]: Witness Printer took 24.43ms. Allocated memory is still 127.9MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:03:14,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.79ms. Allocated memory is still 90.2MB. Free memory was 47.5MB in the beginning and 50.8MB in the end (delta: -3.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.87ms. Allocated memory is still 90.2MB. Free memory was 50.8MB in the beginning and 48.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.19ms. Allocated memory is still 90.2MB. Free memory was 48.8MB in the beginning and 47.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.18ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 47.5MB in the beginning and 103.0MB in the end (delta: -55.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3212.05ms. Allocated memory is still 127.9MB. Free memory was 102.2MB in the beginning and 70.7MB in the end (delta: 31.5MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 24.43ms. Allocated memory is still 127.9MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 63 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 15 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 542 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 420, positive: 396, positive conditional: 0, positive unconditional: 396, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, positive: 303, positive conditional: 0, positive unconditional: 303, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 420, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 321, unknown conditional: 0, unknown unconditional: 321] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 0 mSDtfsCounter, 257 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 241/274 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 14:03:14,486 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