./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.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/06-symbeq_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:03:28,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:03:28,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:03:28,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:03:28,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:03:28,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:03:28,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:03:28,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:03:28,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:03:28,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:03:28,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:03:28,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:03:28,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:03:28,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:03:28,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:03:28,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:03:28,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:03:28,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:03:28,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:03:28,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:03:28,375 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:03:28,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:03:28,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:03:28,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:03:28,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:03:28,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:03:28,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:03:28,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:03:28,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:03:28,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:03:28,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:03:28,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:03:28,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:03:28,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:03:28,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:03:28,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:03:28,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:03:28,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:03:28,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:03:28,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:03:28,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:03:28,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:03:28,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:03:28,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:03:28,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:03:28,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:03:28,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:03:28,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:03:28,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:03:28,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:03:28,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:03:28,425 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:03:28,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:03:28,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:03:28,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:03:28,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:03:28,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:03:28,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:03:28,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:03:28,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:03:28,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:03:28,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:03:28,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:03:28,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:03:28,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:03:28,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:03:28,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:03:28,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:03:28,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:03:28,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:03:28,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:03:28,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:03:28,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:03:28,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:03:28,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:03:28,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:03:28,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-07-14 14:03:28,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:03:28,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:03:28,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:03:28,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:03:28,709 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:03:28,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-07-14 14:03:28,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759cd3cc2/77996fbc7c5b453784ac6e9dfde968e5/FLAGcb935088b [2022-07-14 14:03:29,165 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:03:29,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-07-14 14:03:29,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759cd3cc2/77996fbc7c5b453784ac6e9dfde968e5/FLAGcb935088b [2022-07-14 14:03:29,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759cd3cc2/77996fbc7c5b453784ac6e9dfde968e5 [2022-07-14 14:03:29,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:03:29,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:03:29,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:03:29,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:03:29,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:03:29,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:03:29" (1/1) ... [2022-07-14 14:03:29,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61914261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:29, skipping insertion in model container [2022-07-14 14:03:29,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:03:29" (1/1) ... [2022-07-14 14:03:29,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:03:29,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:03:29,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:03:29,990 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:03:30,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:03:30,100 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:03:30,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30 WrapperNode [2022-07-14 14:03:30,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:03:30,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:03:30,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:03:30,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:03:30,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,161 INFO L137 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-07-14 14:03:30,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:03:30,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:03:30,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:03:30,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:03:30,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:03:30,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:03:30,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:03:30,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:03:30,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (1/1) ... [2022-07-14 14:03:30,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:03:30,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:30,236 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 14:03:30,240 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 14:03:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:03:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:03:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:03:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:03:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:03:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:03:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:03:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:03:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:03:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:03:30,277 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 14:03:30,409 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:03:30,410 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:03:30,586 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:03:30,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:03:30,593 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:03:30,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:30 BoogieIcfgContainer [2022-07-14 14:03:30,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:03:30,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:03:30,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:03:30,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:03:30,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:03:29" (1/3) ... [2022-07-14 14:03:30,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ba7200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:03:30, skipping insertion in model container [2022-07-14 14:03:30,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:03:30" (2/3) ... [2022-07-14 14:03:30,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ba7200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:03:30, skipping insertion in model container [2022-07-14 14:03:30,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:30" (3/3) ... [2022-07-14 14:03:30,613 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-07-14 14:03:30,617 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:03:30,625 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:03:30,625 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 14:03:30,626 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:03:30,665 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:03:30,692 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:03:30,702 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 94 transitions, 193 flow [2022-07-14 14:03:30,704 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 94 transitions, 193 flow [2022-07-14 14:03:30,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 94 transitions, 193 flow [2022-07-14 14:03:30,736 INFO L129 PetriNetUnfolder]: 4/93 cut-off events. [2022-07-14 14:03:30,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:03:30,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 4/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-07-14 14:03:30,742 INFO L116 LiptonReduction]: Number of co-enabled transitions 1360 [2022-07-14 14:03:33,195 INFO L131 LiptonReduction]: Checked pairs total: 1934 [2022-07-14 14:03:33,196 INFO L133 LiptonReduction]: Total number of compositions: 104 [2022-07-14 14:03:33,203 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions, 47 flow [2022-07-14 14:03:33,219 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 62 states, 45 states have (on average 2.311111111111111) internal successors, (104), 61 states have internal predecessors, (104), 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 14:03:33,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:03:33,238 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@4cbcb7af, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@bf14442 [2022-07-14 14:03:33,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-14 14:03:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 45 states have (on average 2.311111111111111) internal successors, (104), 61 states have internal predecessors, (104), 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 14:03:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:03:33,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:33,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:03:33,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:33,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash 11667, now seen corresponding path program 1 times [2022-07-14 14:03:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:33,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419879558] [2022-07-14 14:03:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:33,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:33,384 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 14:03:33,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:33,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419879558] [2022-07-14 14:03:33,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419879558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:33,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:33,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:03:33,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471824719] [2022-07-14 14:03:33,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:33,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:03:33,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:03:33,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:33,410 INFO L87 Difference]: Start difference. First operand has 62 states, 45 states have (on average 2.311111111111111) internal successors, (104), 61 states have internal predecessors, (104), 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 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 14:03:33,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:33,447 INFO L93 Difference]: Finished difference Result 46 states and 76 transitions. [2022-07-14 14:03:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:33,449 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 14:03:33,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:33,455 INFO L225 Difference]: With dead ends: 46 [2022-07-14 14:03:33,455 INFO L226 Difference]: Without dead ends: 43 [2022-07-14 14:03:33,456 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 14:03:33,460 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:33,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-14 14:03:33,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-07-14 14:03:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 2.0) internal successors, (70), 42 states have internal predecessors, (70), 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 14:03:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 70 transitions. [2022-07-14 14:03:33,494 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 70 transitions. Word has length 2 [2022-07-14 14:03:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:33,494 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 70 transitions. [2022-07-14 14:03:33,494 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 14:03:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 70 transitions. [2022-07-14 14:03:33,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:03:33,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:33,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:03:33,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:03:33,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:33,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash 11238990, now seen corresponding path program 1 times [2022-07-14 14:03:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:33,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336909926] [2022-07-14 14:03:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:33,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:33,542 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 14:03:33,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:33,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336909926] [2022-07-14 14:03:33,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336909926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:33,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:33,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:03:33,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095266558] [2022-07-14 14:03:33,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:33,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:03:33,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:33,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:03:33,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:03:33,545 INFO L87 Difference]: Start difference. First operand 43 states and 70 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 14:03:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:33,570 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2022-07-14 14:03:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-07-14 14:03:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:33,571 INFO L225 Difference]: With dead ends: 44 [2022-07-14 14:03:33,571 INFO L226 Difference]: Without dead ends: 44 [2022-07-14 14:03:33,572 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 14:03:33,573 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:33,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-14 14:03:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-07-14 14:03:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.9722222222222223) internal successors, (71), 43 states have internal predecessors, (71), 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 14:03:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-07-14 14:03:33,579 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 4 [2022-07-14 14:03:33,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:33,580 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-07-14 14:03:33,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 14:03:33,580 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-07-14 14:03:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:03:33,580 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:33,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:03:33,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:03:33,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:33,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash 348115618, now seen corresponding path program 1 times [2022-07-14 14:03:33,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:33,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919528599] [2022-07-14 14:03:33,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:33,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:33,645 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 14:03:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919528599] [2022-07-14 14:03:33,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919528599] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116311875] [2022-07-14 14:03:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:33,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:33,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:33,649 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 14:03:33,697 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 14:03:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:33,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:03:33,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:33,794 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 14:03:33,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:03:33,812 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 14:03:33,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116311875] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:03:33,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:03:33,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-07-14 14:03:33,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492064152] [2022-07-14 14:03:33,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:03:33,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:03:33,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:33,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:03:33,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:03:33,829 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 14:03:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:33,891 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-07-14 14:03:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:03:33,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 14:03:33,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:33,893 INFO L225 Difference]: With dead ends: 47 [2022-07-14 14:03:33,893 INFO L226 Difference]: Without dead ends: 47 [2022-07-14 14:03:33,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:03:33,894 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:33,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:03:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-14 14:03:33,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-07-14 14:03:33,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.8974358974358974) internal successors, (74), 46 states have internal predecessors, (74), 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 14:03:33,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. [2022-07-14 14:03:33,900 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 74 transitions. Word has length 5 [2022-07-14 14:03:33,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:33,901 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 74 transitions. [2022-07-14 14:03:33,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 14:03:33,901 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2022-07-14 14:03:33,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:03:33,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:33,902 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-07-14 14:03:33,934 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 14:03:34,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:34,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:34,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:34,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1924664498, now seen corresponding path program 2 times [2022-07-14 14:03:34,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:34,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234529832] [2022-07-14 14:03:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:34,212 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 14:03:34,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:34,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234529832] [2022-07-14 14:03:34,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234529832] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:34,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278922971] [2022-07-14 14:03:34,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:03:34,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:34,216 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 14:03:34,246 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 14:03:34,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:03:34,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:03:34,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 14:03:34,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:34,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-14 14:03:34,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:03:34,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-14 14:03:34,421 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 14:03:34,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:03:34,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278922971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:34,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:03:34,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-07-14 14:03:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359051007] [2022-07-14 14:03:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:34,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:03:34,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:34,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:03:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:34,426 INFO L87 Difference]: Start difference. First operand 47 states and 74 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:03:34,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:34,466 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2022-07-14 14:03:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:03:34,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:03:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:34,469 INFO L225 Difference]: With dead ends: 34 [2022-07-14 14:03:34,469 INFO L226 Difference]: Without dead ends: 34 [2022-07-14 14:03:34,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:34,474 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:34,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-14 14:03:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-14 14:03:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.6) internal successors, (48), 33 states have internal predecessors, (48), 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 14:03:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2022-07-14 14:03:34,493 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 8 [2022-07-14 14:03:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:34,493 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2022-07-14 14:03:34,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 14:03:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2022-07-14 14:03:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:03:34,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:34,498 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-07-14 14:03:34,525 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 14:03:34,716 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,SelfDestructingSolverStorable3 [2022-07-14 14:03:34,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash 464942882, now seen corresponding path program 1 times [2022-07-14 14:03:34,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:34,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069965475] [2022-07-14 14:03:34,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:34,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:34,785 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 14:03:34,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:34,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069965475] [2022-07-14 14:03:34,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069965475] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:34,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323588063] [2022-07-14 14:03:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:34,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:34,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:34,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:34,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:03:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:34,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:03:34,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:34,869 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 14:03:34,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:03:34,918 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 14:03:34,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323588063] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:03:34,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:03:34,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-14 14:03:34,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640985904] [2022-07-14 14:03:34,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:03:34,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 14:03:34,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:34,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 14:03:34,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:03:34,921 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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 14:03:34,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:34,966 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2022-07-14 14:03:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:03:34,967 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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) Word has length 9 [2022-07-14 14:03:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:34,969 INFO L225 Difference]: With dead ends: 40 [2022-07-14 14:03:34,969 INFO L226 Difference]: Without dead ends: 40 [2022-07-14 14:03:34,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 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 14:03:34,972 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:34,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-14 14:03:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-07-14 14:03:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.5) internal successors, (54), 39 states have internal predecessors, (54), 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 14:03:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2022-07-14 14:03:34,988 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 9 [2022-07-14 14:03:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2022-07-14 14:03:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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 14:03:34,989 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2022-07-14 14:03:34,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 14:03:34,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:34,989 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1] [2022-07-14 14:03:35,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:35,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:35,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:35,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:35,213 INFO L85 PathProgramCache]: Analyzing trace with hash 738486178, now seen corresponding path program 2 times [2022-07-14 14:03:35,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:35,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521623060] [2022-07-14 14:03:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:35,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:03:35,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:35,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521623060] [2022-07-14 14:03:35,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521623060] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:35,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732850300] [2022-07-14 14:03:35,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:03:35,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:35,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:35,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:03:35,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:03:35,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:03:35,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 14:03:35,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:35,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-14 14:03:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:03:35,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-14 14:03:35,538 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 14:03:35,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:03:35,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732850300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:35,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:03:35,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2022-07-14 14:03:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497697383] [2022-07-14 14:03:35,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:35,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:03:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:03:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:35,540 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:03:35,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:35,591 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-07-14 14:03:35,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:03:35,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 15 [2022-07-14 14:03:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:35,594 INFO L225 Difference]: With dead ends: 37 [2022-07-14 14:03:35,594 INFO L226 Difference]: Without dead ends: 37 [2022-07-14 14:03:35,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:03:35,596 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:35,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:35,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-14 14:03:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-14 14:03:35,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 36 states have internal predecessors, (48), 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 14:03:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-07-14 14:03:35,601 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 15 [2022-07-14 14:03:35,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:35,602 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-07-14 14:03:35,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:03:35,602 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-07-14 14:03:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:03:35,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:35,604 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:35,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:35,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:35,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1014759201, now seen corresponding path program 1 times [2022-07-14 14:03:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:35,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952619118] [2022-07-14 14:03:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:35,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:03:35,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:35,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952619118] [2022-07-14 14:03:35,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952619118] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:35,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638724590] [2022-07-14 14:03:35,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:35,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:35,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:35,929 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:35,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 14:03:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:36,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-14 14:03:36,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:36,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-14 14:03:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:03:36,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-14 14:03:36,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-07-14 14:03:37,391 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 14:03:37,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:03:37,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638724590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:37,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:03:37,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2022-07-14 14:03:37,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125778241] [2022-07-14 14:03:37,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:37,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:03:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:37,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:03:37,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:37,393 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 14:03:37,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:37,411 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-07-14 14:03:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:03:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 17 [2022-07-14 14:03:37,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:37,412 INFO L225 Difference]: With dead ends: 36 [2022-07-14 14:03:37,412 INFO L226 Difference]: Without dead ends: 36 [2022-07-14 14:03:37,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:37,413 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:37,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2022-07-14 14:03:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-14 14:03:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-14 14:03:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.4375) internal successors, (46), 35 states have internal predecessors, (46), 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 14:03:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2022-07-14 14:03:37,416 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 17 [2022-07-14 14:03:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:37,416 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2022-07-14 14:03:37,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 14:03:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-07-14 14:03:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:37,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:37,416 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:37,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:37,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:37,617 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:37,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1418911285, now seen corresponding path program 1 times [2022-07-14 14:03:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:37,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369931579] [2022-07-14 14:03:37,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:37,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:37,750 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 14:03:37,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:37,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369931579] [2022-07-14 14:03:37,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369931579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:37,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:37,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:03:37,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155561282] [2022-07-14 14:03:37,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:37,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:37,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:37,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:37,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:37,752 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:37,862 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2022-07-14 14:03:37,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:03:37,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:37,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:37,863 INFO L225 Difference]: With dead ends: 39 [2022-07-14 14:03:37,863 INFO L226 Difference]: Without dead ends: 36 [2022-07-14 14:03:37,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:03:37,864 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:37,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:03:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-14 14:03:37,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-14 14:03:37,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.40625) internal successors, (45), 35 states have internal predecessors, (45), 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 14:03:37,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2022-07-14 14:03:37,866 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 18 [2022-07-14 14:03:37,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:37,866 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2022-07-14 14:03:37,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2022-07-14 14:03:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:37,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:37,867 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:37,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 14:03:37,867 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:37,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1418942248, now seen corresponding path program 1 times [2022-07-14 14:03:37,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:37,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850189371] [2022-07-14 14:03:37,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:37,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:03:38,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:38,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850189371] [2022-07-14 14:03:38,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850189371] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:38,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900759095] [2022-07-14 14:03:38,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:38,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:38,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:38,032 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:38,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 14:03:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:38,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 14:03:38,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:38,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-14 14:03:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:03:38,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-14 14:03:38,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 14:03:38,265 INFO L356 Elim1Store]: treesize reduction 7, result has 53.3 percent of original size [2022-07-14 14:03:38,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-07-14 14:03:38,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-07-14 14:03:38,740 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 14:03:38,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:03:38,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900759095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:38,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:03:38,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2022-07-14 14:03:38,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846493982] [2022-07-14 14:03:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:38,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:38,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:38,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:03:38,742 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:38,804 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2022-07-14 14:03:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:03:38,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:38,805 INFO L225 Difference]: With dead ends: 39 [2022-07-14 14:03:38,805 INFO L226 Difference]: Without dead ends: 39 [2022-07-14 14:03:38,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-07-14 14:03:38,806 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:38,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-07-14 14:03:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-14 14:03:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-14 14:03:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.4) internal successors, (49), 38 states have internal predecessors, (49), 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 14:03:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-07-14 14:03:38,809 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 18 [2022-07-14 14:03:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:38,809 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-07-14 14:03:38,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-07-14 14:03:38,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:38,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:38,810 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:38,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:39,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:39,027 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1418942222, now seen corresponding path program 1 times [2022-07-14 14:03:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925942099] [2022-07-14 14:03:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:39,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:03:39,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925942099] [2022-07-14 14:03:39,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925942099] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675038672] [2022-07-14 14:03:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:39,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:39,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:39,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:39,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 14:03:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:39,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 14:03:39,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:39,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-14 14:03:39,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:03:39,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-14 14:03:39,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 14:03:39,400 INFO L356 Elim1Store]: treesize reduction 7, result has 53.3 percent of original size [2022-07-14 14:03:39,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-07-14 14:03:39,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-07-14 14:03:40,669 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 14:03:40,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:03:40,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675038672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:40,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:03:40,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2022-07-14 14:03:40,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318312683] [2022-07-14 14:03:40,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:40,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:40,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:40,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:03:40,671 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:40,721 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2022-07-14 14:03:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:03:40,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:40,722 INFO L225 Difference]: With dead ends: 41 [2022-07-14 14:03:40,722 INFO L226 Difference]: Without dead ends: 41 [2022-07-14 14:03:40,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 14:03:40,722 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:40,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-07-14 14:03:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-14 14:03:40,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-07-14 14:03:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 39 states have internal predecessors, (49), 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 14:03:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2022-07-14 14:03:40,724 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 18 [2022-07-14 14:03:40,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:40,724 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-07-14 14:03:40,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:40,725 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2022-07-14 14:03:40,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:40,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:40,725 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:40,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:40,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:40,926 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1419582088, now seen corresponding path program 2 times [2022-07-14 14:03:40,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:40,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463780384] [2022-07-14 14:03:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:40,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:41,059 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:03:41,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:41,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463780384] [2022-07-14 14:03:41,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463780384] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:03:41,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944498694] [2022-07-14 14:03:41,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:03:41,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:03:41,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:03:41,064 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:03:41,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 14:03:41,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:03:41,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:03:41,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 14:03:41,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:03:41,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-07-14 14:03:41,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 14:03:41,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-07-14 14:03:41,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 14:03:41,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2022-07-14 14:03:41,331 INFO L356 Elim1Store]: treesize reduction 7, result has 53.3 percent of original size [2022-07-14 14:03:41,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-07-14 14:03:42,884 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 14:03:42,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:03:42,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944498694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:42,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:03:42,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2022-07-14 14:03:42,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508444234] [2022-07-14 14:03:42,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:42,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:42,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:42,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:42,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2022-07-14 14:03:42,886 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:42,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:42,916 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-07-14 14:03:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:03:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:42,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:42,917 INFO L225 Difference]: With dead ends: 41 [2022-07-14 14:03:42,917 INFO L226 Difference]: Without dead ends: 41 [2022-07-14 14:03:42,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2022-07-14 14:03:42,918 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:42,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-07-14 14:03:42,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-14 14:03:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-07-14 14:03:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 40 states have internal predecessors, (51), 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 14:03:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2022-07-14 14:03:42,920 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 18 [2022-07-14 14:03:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:42,920 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-07-14 14:03:42,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2022-07-14 14:03:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:42,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:42,921 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:42,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:03:43,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 14:03:43,131 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:43,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:43,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1419582062, now seen corresponding path program 2 times [2022-07-14 14:03:43,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:43,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681175252] [2022-07-14 14:03:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:43,236 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 14:03:43,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:43,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681175252] [2022-07-14 14:03:43,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681175252] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:43,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:43,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:03:43,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263320294] [2022-07-14 14:03:43,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:43,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:43,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:43,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:43,238 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:43,306 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-07-14 14:03:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:03:43,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:43,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:43,307 INFO L225 Difference]: With dead ends: 39 [2022-07-14 14:03:43,307 INFO L226 Difference]: Without dead ends: 39 [2022-07-14 14:03:43,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:43,308 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:43,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:43,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-14 14:03:43,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2022-07-14 14:03:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 36 states have internal predecessors, (45), 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 14:03:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-07-14 14:03:43,310 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 18 [2022-07-14 14:03:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:43,311 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-07-14 14:03:43,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-07-14 14:03:43,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:43,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:43,311 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:43,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 14:03:43,311 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:43,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1393917808, now seen corresponding path program 3 times [2022-07-14 14:03:43,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:43,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520769290] [2022-07-14 14:03:43,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:43,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:43,454 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 14:03:43,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:43,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520769290] [2022-07-14 14:03:43,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520769290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:43,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:43,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:03:43,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342834024] [2022-07-14 14:03:43,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:43,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:43,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:43,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:43,456 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:43,530 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2022-07-14 14:03:43,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:03:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:43,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:43,531 INFO L225 Difference]: With dead ends: 35 [2022-07-14 14:03:43,531 INFO L226 Difference]: Without dead ends: 24 [2022-07-14 14:03:43,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:43,532 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:43,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:43,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-14 14:03:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-14 14:03:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 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 14:03:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-07-14 14:03:43,538 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 18 [2022-07-14 14:03:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:43,539 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-07-14 14:03:43,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-07-14 14:03:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:43,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:43,539 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:43,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 14:03:43,540 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1392791305, now seen corresponding path program 2 times [2022-07-14 14:03:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:43,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038904852] [2022-07-14 14:03:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:43,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:43,629 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 14:03:43,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:43,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038904852] [2022-07-14 14:03:43,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038904852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:43,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:43,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:03:43,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917271033] [2022-07-14 14:03:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:43,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:43,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:43,631 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:43,696 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-07-14 14:03:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:03:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:43,697 INFO L225 Difference]: With dead ends: 26 [2022-07-14 14:03:43,697 INFO L226 Difference]: Without dead ends: 23 [2022-07-14 14:03:43,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:03:43,698 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:43,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:43,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-14 14:03:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-14 14:03:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 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 14:03:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-07-14 14:03:43,699 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2022-07-14 14:03:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:43,700 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-07-14 14:03:43,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-07-14 14:03:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:43,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:43,700 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:43,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 14:03:43,700 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:43,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1392764335, now seen corresponding path program 3 times [2022-07-14 14:03:43,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:43,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515874493] [2022-07-14 14:03:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:43,789 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 14:03:43,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:43,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515874493] [2022-07-14 14:03:43,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515874493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:43,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:43,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:03:43,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104879470] [2022-07-14 14:03:43,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:43,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:03:43,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:43,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:03:43,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:03:43,792 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:43,835 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-07-14 14:03:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:03:43,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:43,836 INFO L225 Difference]: With dead ends: 21 [2022-07-14 14:03:43,836 INFO L226 Difference]: Without dead ends: 19 [2022-07-14 14:03:43,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:03:43,836 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:43,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:43,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-14 14:03:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-14 14:03:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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 14:03:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-07-14 14:03:43,838 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 18 [2022-07-14 14:03:43,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:43,838 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-07-14 14:03:43,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:03:43,838 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-07-14 14:03:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:03:43,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:03:43,839 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:03:43,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 14:03:43,839 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:03:43,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:03:43,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1392764099, now seen corresponding path program 1 times [2022-07-14 14:03:43,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:03:43,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476505721] [2022-07-14 14:03:43,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:03:43,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:03:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:03:43,915 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 14:03:43,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:03:43,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476505721] [2022-07-14 14:03:43,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476505721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:03:43,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:03:43,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:03:43,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007290729] [2022-07-14 14:03:43,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:03:43,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:03:43,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:03:43,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:03:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:03:43,917 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 14:03:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:03:43,933 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-07-14 14:03:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:03:43,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 18 [2022-07-14 14:03:43,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:03:43,933 INFO L225 Difference]: With dead ends: 18 [2022-07-14 14:03:43,934 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:03:43,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:03:43,934 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:03:43,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:03:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:03:43,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:03:43,935 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 14:03:43,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:03:43,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-14 14:03:43,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:03:43,936 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:03:43,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 14:03:43,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:03:43,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:03:43,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-07-14 14:03:43,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-14 14:03:43,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-14 14:03:43,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-14 14:03:43,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-07-14 14:03:43,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-14 14:03:43,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-14 14:03:43,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-14 14:03:43,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-07-14 14:03:43,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-14 14:03:43,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-14 14:03:43,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-14 14:03:43,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-14 14:03:43,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 14:03:43,943 INFO L356 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-07-14 14:03:43,946 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:03:43,946 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:03:43,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:03:43 BasicIcfg [2022-07-14 14:03:43,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:03:43,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:03:43,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:03:43,949 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:03:43,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:03:30" (3/4) ... [2022-07-14 14:03:43,951 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:03:43,956 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:03:43,959 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-14 14:03:43,959 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-14 14:03:43,960 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 14:03:43,991 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:03:43,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:03:43,992 INFO L158 Benchmark]: Toolchain (without parser) took 14467.36ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 76.6MB in the beginning and 38.7MB in the end (delta: 37.9MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2022-07-14 14:03:43,992 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 59.5MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:03:43,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.32ms. Allocated memory is still 100.7MB. Free memory was 76.4MB in the beginning and 55.6MB in the end (delta: 20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 14:03:43,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.50ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 53.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 14:03:43,993 INFO L158 Benchmark]: Boogie Preprocessor took 43.17ms. Allocated memory is still 100.7MB. Free memory was 53.2MB in the beginning and 51.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:03:43,993 INFO L158 Benchmark]: RCFGBuilder took 387.15ms. Allocated memory is still 100.7MB. Free memory was 51.7MB in the beginning and 74.2MB in the end (delta: -22.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-07-14 14:03:43,994 INFO L158 Benchmark]: TraceAbstraction took 13344.26ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 76.0MB in the beginning and 40.8MB in the end (delta: 35.2MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2022-07-14 14:03:43,994 INFO L158 Benchmark]: Witness Printer took 42.24ms. Allocated memory is still 146.8MB. Free memory was 40.8MB in the beginning and 38.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:03:44,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 59.5MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.32ms. Allocated memory is still 100.7MB. Free memory was 76.4MB in the beginning and 55.6MB in the end (delta: 20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.50ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 53.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.17ms. Allocated memory is still 100.7MB. Free memory was 53.2MB in the beginning and 51.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 387.15ms. Allocated memory is still 100.7MB. Free memory was 51.7MB in the beginning and 74.2MB in the end (delta: -22.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13344.26ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 76.0MB in the beginning and 40.8MB in the end (delta: 35.2MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. * Witness Printer took 42.24ms. Allocated memory is still 146.8MB. Free memory was 40.8MB in the beginning and 38.7MB 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: 2.5s, 94 PlacesBefore, 24 PlacesAfterwards, 94 TransitionsBefore, 21 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 1934 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1457, positive: 1371, positive conditional: 0, positive unconditional: 1371, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 990, positive: 964, positive conditional: 0, positive unconditional: 964, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 990, positive: 954, positive conditional: 0, positive unconditional: 954, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1457, positive: 407, positive conditional: 0, positive unconditional: 407, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 990, unknown conditional: 0, unknown unconditional: 990] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - 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: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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, 126 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 16, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 79 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 738 IncrementalHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 738 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 93, 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, 16 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 330 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 318 ConstructedInterpolants, 5 QuantifiedInterpolants, 3603 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1038 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 840/933 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 14:03:44,039 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