./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/jain_5-1.c --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/bitvector/jain_5-1.c -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 ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:55:51,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:55:51,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:55:51,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:55:51,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:55:51,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:55:51,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:55:51,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:55:51,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:55:51,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:55:51,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:55:51,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:55:51,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:55:51,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:55:51,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:55:51,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:55:51,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:55:51,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:55:51,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:55:51,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:55:51,264 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:55:51,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:55:51,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:55:51,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:55:51,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:55:51,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:55:51,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:55:51,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:55:51,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:55:51,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:55:51,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:55:51,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:55:51,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:55:51,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:55:51,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:55:51,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:55:51,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:55:51,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:55:51,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:55:51,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:55:51,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:55:51,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:55:51,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:55:51,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:55:51,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:55:51,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:55:51,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:55:51,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:55:51,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:55:51,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:55:51,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:55:51,308 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:55:51,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:55:51,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:55:51,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:55:51,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:55:51,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:55:51,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:55:51,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:55:51,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:55:51,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:55:51,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:55:51,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:55:51,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:55:51,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:55:51,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:55:51,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:55:51,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:55:51,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:55:51,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:55:51,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 [2022-07-14 13:55:51,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:55:51,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:55:51,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:55:51,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:55:51,530 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:55:51,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_5-1.c [2022-07-14 13:55:51,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdf4f6a9/beb65a21857d46f98b20473ab4e02b6f/FLAG47ca28582 [2022-07-14 13:55:51,916 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:55:51,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-1.c [2022-07-14 13:55:51,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdf4f6a9/beb65a21857d46f98b20473ab4e02b6f/FLAG47ca28582 [2022-07-14 13:55:52,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cdf4f6a9/beb65a21857d46f98b20473ab4e02b6f [2022-07-14 13:55:52,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:55:52,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:55:52,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:55:52,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:55:52,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:55:52,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7673b06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52, skipping insertion in model container [2022-07-14 13:55:52,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:55:52,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:55:52,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-1.c[665,678] [2022-07-14 13:55:52,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:55:52,528 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:55:52,538 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-1.c[665,678] [2022-07-14 13:55:52,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:55:52,551 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:55:52,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52 WrapperNode [2022-07-14 13:55:52,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:55:52,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:55:52,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:55:52,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:55:52,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,576 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2022-07-14 13:55:52,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:55:52,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:55:52,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:55:52,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:55:52,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:55:52,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:55:52,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:55:52,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:55:52,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (1/1) ... [2022-07-14 13:55:52,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:55:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:52,621 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 13:55:52,639 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 13:55:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:55:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:55:52,693 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:55:52,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:55:52,792 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:55:52,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:55:52,798 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 13:55:52,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:55:52 BoogieIcfgContainer [2022-07-14 13:55:52,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:55:52,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:55:52,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:55:52,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:55:52,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:55:52" (1/3) ... [2022-07-14 13:55:52,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bddfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:55:52, skipping insertion in model container [2022-07-14 13:55:52,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:55:52" (2/3) ... [2022-07-14 13:55:52,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bddfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:55:52, skipping insertion in model container [2022-07-14 13:55:52,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:55:52" (3/3) ... [2022-07-14 13:55:52,807 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_5-1.c [2022-07-14 13:55:52,817 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:55:52,818 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-14 13:55:52,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:55:52,874 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@49448ae9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1594c369 [2022-07-14 13:55:52,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-14 13:55:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 13:55:52,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 13:55:52,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:52,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 13:55:52,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:52,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:52,898 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-07-14 13:55:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:52,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245356626] [2022-07-14 13:55:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:52,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,020 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 13:55:53,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:53,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245356626] [2022-07-14 13:55:53,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245356626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:55:53,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:55:53,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:55:53,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078788941] [2022-07-14 13:55:53,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:55:53,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:55:53,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:53,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:55:53,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:55:53,061 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 2.0) internal successors, (4), 3 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 13:55:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:53,097 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-07-14 13:55:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:55:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 13:55:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:53,124 INFO L225 Difference]: With dead ends: 34 [2022-07-14 13:55:53,124 INFO L226 Difference]: Without dead ends: 17 [2022-07-14 13:55:53,126 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 13:55:53,128 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:53,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:55:53,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-14 13:55:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-07-14 13:55:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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 13:55:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-07-14 13:55:53,152 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2022-07-14 13:55:53,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:53,152 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-07-14 13:55:53,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 13:55:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-07-14 13:55:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 13:55:53,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:53,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 13:55:53,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:55:53,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-07-14 13:55:53,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:53,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296171660] [2022-07-14 13:55:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,196 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 13:55:53,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:53,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296171660] [2022-07-14 13:55:53,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296171660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:55:53,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:55:53,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:55:53,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146522077] [2022-07-14 13:55:53,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:55:53,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:55:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:53,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:55:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:55:53,200 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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 13:55:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:53,217 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-14 13:55:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:55:53,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 5 [2022-07-14 13:55:53,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:53,230 INFO L225 Difference]: With dead ends: 17 [2022-07-14 13:55:53,230 INFO L226 Difference]: Without dead ends: 16 [2022-07-14 13:55:53,230 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 13:55:53,232 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:53,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:55:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-14 13:55:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-14 13:55:53,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:55:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-14 13:55:53,237 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2022-07-14 13:55:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:53,237 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-14 13:55:53,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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 13:55:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-14 13:55:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 13:55:53,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:53,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 13:55:53,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:55:53,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-07-14 13:55:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:53,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343468433] [2022-07-14 13:55:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,264 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 13:55:53,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:53,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343468433] [2022-07-14 13:55:53,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343468433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:55:53,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:55:53,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:55:53,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846815921] [2022-07-14 13:55:53,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:55:53,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:55:53,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:53,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:55:53,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:55:53,266 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 13:55:53,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:53,280 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-07-14 13:55:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:55:53,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 6 [2022-07-14 13:55:53,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:53,282 INFO L225 Difference]: With dead ends: 19 [2022-07-14 13:55:53,282 INFO L226 Difference]: Without dead ends: 18 [2022-07-14 13:55:53,282 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 13:55:53,283 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:53,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:55:53,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-14 13:55:53,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-07-14 13:55:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:55:53,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-07-14 13:55:53,287 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2022-07-14 13:55:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:53,288 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-07-14 13:55:53,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 13:55:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-07-14 13:55:53,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 13:55:53,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:53,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:55:53,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:55:53,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:53,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:53,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-07-14 13:55:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469384584] [2022-07-14 13:55:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,306 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 13:55:53,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:53,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469384584] [2022-07-14 13:55:53,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469384584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:55:53,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:55:53,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:55:53,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933626974] [2022-07-14 13:55:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:55:53,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:55:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:53,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:55:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:55:53,309 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:55:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:53,317 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-07-14 13:55:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:55:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 13:55:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:53,318 INFO L225 Difference]: With dead ends: 17 [2022-07-14 13:55:53,319 INFO L226 Difference]: Without dead ends: 16 [2022-07-14 13:55:53,319 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 13:55:53,320 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:53,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:55:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-14 13:55:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-14 13:55:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:55:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-07-14 13:55:53,323 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-07-14 13:55:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:53,323 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-07-14 13:55:53,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:55:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-07-14 13:55:53,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 13:55:53,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:53,324 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:55:53,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:55:53,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:53,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash -851677744, now seen corresponding path program 1 times [2022-07-14 13:55:53,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:53,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190815183] [2022-07-14 13:55:53,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:53,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190815183] [2022-07-14 13:55:53,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190815183] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:55:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739311783] [2022-07-14 13:55:53,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:53,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:53,382 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 13:55:53,383 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 13:55:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:55:53,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:55:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:53,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:55:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:53,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739311783] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:55:53,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:55:53,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-07-14 13:55:53,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326376227] [2022-07-14 13:55:53,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:55:53,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 13:55:53,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:53,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 13:55:53,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-07-14 13:55:53,586 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 13:55:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:53,700 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-07-14 13:55:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 13:55:53,701 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 11 [2022-07-14 13:55:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:53,704 INFO L225 Difference]: With dead ends: 31 [2022-07-14 13:55:53,704 INFO L226 Difference]: Without dead ends: 30 [2022-07-14 13:55:53,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=115, Unknown=0, NotChecked=0, Total=210 [2022-07-14 13:55:53,706 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:53,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 22 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:55:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-14 13:55:53,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2022-07-14 13:55:53,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 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 13:55:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-07-14 13:55:53,711 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2022-07-14 13:55:53,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:53,712 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-07-14 13:55:53,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 13:55:53,712 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-07-14 13:55:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-14 13:55:53,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:53,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:55:53,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 13:55:53,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:53,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:53,928 INFO L85 PathProgramCache]: Analyzing trace with hash -632206243, now seen corresponding path program 1 times [2022-07-14 13:55:53,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:53,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822862027] [2022-07-14 13:55:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:53,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:53,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822862027] [2022-07-14 13:55:53,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822862027] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:55:53,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997604605] [2022-07-14 13:55:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:53,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:53,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:53,981 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 13:55:53,982 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 13:55:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:54,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:55:54,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:55:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:54,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:55:54,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997604605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:55:54,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:55:54,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-07-14 13:55:54,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649998288] [2022-07-14 13:55:54,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:55:54,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:55:54,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:54,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:55:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:55:54,059 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 13:55:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:54,082 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-07-14 13:55:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:55:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-07-14 13:55:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:54,083 INFO L225 Difference]: With dead ends: 28 [2022-07-14 13:55:54,084 INFO L226 Difference]: Without dead ends: 27 [2022-07-14 13:55:54,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 13:55:54,085 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:54,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:55:54,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-14 13:55:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-07-14 13:55:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 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 13:55:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-07-14 13:55:54,089 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2022-07-14 13:55:54,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:54,089 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-07-14 13:55:54,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 13:55:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-07-14 13:55:54,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 13:55:54,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:54,090 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:55:54,109 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 13:55:54,306 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,SelfDestructingSolverStorable5 [2022-07-14 13:55:54,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:54,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:54,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1876442994, now seen corresponding path program 1 times [2022-07-14 13:55:54,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:54,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902427044] [2022-07-14 13:55:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:54,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:54,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:54,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902427044] [2022-07-14 13:55:54,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902427044] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:55:54,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610844529] [2022-07-14 13:55:54,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:54,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:54,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:54,359 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 13:55:54,360 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 13:55:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:54,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 13:55:54,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:55:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:54,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:55:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:54,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610844529] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:55:54,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:55:54,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-14 13:55:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141172546] [2022-07-14 13:55:54,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:55:54,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:55:54,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:54,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:55:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:55:54,438 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 13:55:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:54,468 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-07-14 13:55:54,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:55:54,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) Word has length 13 [2022-07-14 13:55:54,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:54,472 INFO L225 Difference]: With dead ends: 38 [2022-07-14 13:55:54,472 INFO L226 Difference]: Without dead ends: 37 [2022-07-14 13:55:54,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 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 13:55:54,473 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:54,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:55:54,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-14 13:55:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2022-07-14 13:55:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.088235294117647) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:55:54,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-07-14 13:55:54,486 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 13 [2022-07-14 13:55:54,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:54,487 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-07-14 13:55:54,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 13:55:54,490 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-07-14 13:55:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 13:55:54,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:54,491 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-07-14 13:55:54,509 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 13:55:54,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:54,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:54,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:54,709 INFO L85 PathProgramCache]: Analyzing trace with hash 167825232, now seen corresponding path program 2 times [2022-07-14 13:55:54,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:54,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519184081] [2022-07-14 13:55:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:54,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:54,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:54,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519184081] [2022-07-14 13:55:54,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519184081] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:55:54,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857906963] [2022-07-14 13:55:54,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:55:54,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:54,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:54,816 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 13:55:54,817 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 13:55:54,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:55:54,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:55:54,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 13:55:54,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:55:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:54,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:55:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:55,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857906963] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:55:55,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:55:55,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-07-14 13:55:55,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839787213] [2022-07-14 13:55:55,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:55:55,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-14 13:55:55,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:55,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-14 13:55:55,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-07-14 13:55:55,168 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 23 states have internal predecessors, (73), 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 13:55:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:55,368 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2022-07-14 13:55:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 13:55:55,368 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 23 states have internal predecessors, (73), 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 25 [2022-07-14 13:55:55,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:55,369 INFO L225 Difference]: With dead ends: 58 [2022-07-14 13:55:55,369 INFO L226 Difference]: Without dead ends: 57 [2022-07-14 13:55:55,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=605, Unknown=0, NotChecked=0, Total=930 [2022-07-14 13:55:55,370 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 83 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:55,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 56 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:55:55,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-14 13:55:55,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-07-14 13:55:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 54 states have internal predecessors, (57), 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 13:55:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-07-14 13:55:55,375 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 25 [2022-07-14 13:55:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:55,375 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-07-14 13:55:55,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 23 states have internal predecessors, (73), 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 13:55:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-07-14 13:55:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 13:55:55,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:55,376 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2022-07-14 13:55:55,397 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 13:55:55,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:55,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:55,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:55,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1799513594, now seen corresponding path program 2 times [2022-07-14 13:55:55,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:55,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609480225] [2022-07-14 13:55:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:55,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:55,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:55,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609480225] [2022-07-14 13:55:55,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609480225] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:55:55,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333798775] [2022-07-14 13:55:55,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:55:55,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:55,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:55,690 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 13:55:55,691 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 13:55:55,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:55:55,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:55:55,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 13:55:55,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:55:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:55,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:55:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:56,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333798775] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:55:56,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:55:56,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-14 13:55:56,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277369251] [2022-07-14 13:55:56,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:55:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-14 13:55:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:55:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-14 13:55:56,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2022-07-14 13:55:56,054 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 27 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 27 states have internal predecessors, (92), 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 13:55:56,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:55:56,240 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-07-14 13:55:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 13:55:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 27 states have internal predecessors, (92), 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 34 [2022-07-14 13:55:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:55:56,244 INFO L225 Difference]: With dead ends: 55 [2022-07-14 13:55:56,244 INFO L226 Difference]: Without dead ends: 54 [2022-07-14 13:55:56,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=455, Invalid=1027, Unknown=0, NotChecked=0, Total=1482 [2022-07-14 13:55:56,246 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:55:56,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 108 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:55:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-14 13:55:56,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-14 13:55:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 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 13:55:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-07-14 13:55:56,258 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 34 [2022-07-14 13:55:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:55:56,258 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-07-14 13:55:56,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 27 states have internal predecessors, (92), 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 13:55:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-07-14 13:55:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 13:55:56,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:55:56,259 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2022-07-14 13:55:56,279 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 13:55:56,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:56,468 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:55:56,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:55:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash -855133616, now seen corresponding path program 3 times [2022-07-14 13:55:56,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:55:56,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047309795] [2022-07-14 13:55:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:55:56,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:55:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:55:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:56,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:55:56,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047309795] [2022-07-14 13:55:56,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047309795] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:55:56,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885311101] [2022-07-14 13:55:56,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:55:56,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:55:56,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:55:56,622 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 13:55:56,623 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 13:55:56,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-07-14 13:55:56,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:55:56,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 13:55:56,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:55:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:55:56,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:22,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885311101] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:22,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:22,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-07-14 13:56:22,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893456121] [2022-07-14 13:56:22,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:22,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-07-14 13:56:22,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:22,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-07-14 13:56:22,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=1558, Unknown=14, NotChecked=0, Total=2162 [2022-07-14 13:56:22,152 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 47 states, 46 states have (on average 3.4130434782608696) internal successors, (157), 47 states have internal predecessors, (157), 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 13:56:53,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:53,746 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2022-07-14 13:56:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-14 13:56:53,747 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.4130434782608696) internal successors, (157), 47 states have internal predecessors, (157), 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 53 [2022-07-14 13:56:53,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:53,747 INFO L225 Difference]: With dead ends: 111 [2022-07-14 13:56:53,747 INFO L226 Difference]: Without dead ends: 110 [2022-07-14 13:56:53,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1535 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=1314, Invalid=2952, Unknown=24, NotChecked=0, Total=4290 [2022-07-14 13:56:53,749 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 220 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:53,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 125 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 131 Invalid, 0 Unknown, 89 Unchecked, 0.2s Time] [2022-07-14 13:56:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-07-14 13:56:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-07-14 13:56:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.0091743119266054) internal successors, (110), 109 states have internal predecessors, (110), 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 13:56:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2022-07-14 13:56:53,756 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 53 [2022-07-14 13:56:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:53,756 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2022-07-14 13:56:53,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.4130434782608696) internal successors, (157), 47 states have internal predecessors, (157), 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 13:56:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2022-07-14 13:56:53,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-14 13:56:53,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:53,758 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1] [2022-07-14 13:56:53,777 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 13:56:53,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:53,978 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-14 13:56:53,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:53,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2142107728, now seen corresponding path program 4 times [2022-07-14 13:56:53,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:53,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420219472] [2022-07-14 13:56:53,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:53,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:54,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:54,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420219472] [2022-07-14 13:56:54,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420219472] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:54,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956480556] [2022-07-14 13:56:54,515 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 13:56:54,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:54,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:54,516 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 13:56:54,517 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 13:56:54,576 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 13:56:54,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:56:54,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-14 13:56:54,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:55,566 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:55,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:59:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:59:39,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956480556] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:59:39,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:59:39,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-07-14 13:59:39,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156911709] [2022-07-14 13:59:39,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:59:39,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-07-14 13:59:39,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:59:39,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-07-14 13:59:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2154, Invalid=6704, Unknown=72, NotChecked=0, Total=8930 [2022-07-14 13:59:39,170 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand has 95 states, 94 states have (on average 3.4574468085106385) internal successors, (325), 95 states have internal predecessors, (325), 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 13:59:41,300 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| 4)) (.cse1 (* (- 1) |c_ULTIMATE.start_main_~x~0#1|)) (.cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|))) (and (forall ((|v_ULTIMATE.start_main_~y~0#1_79| Int)) (or (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~y~0#1_77| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_77| 8) |v_ULTIMATE.start_main_~y~0#1_75|) (<= (+ (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* 2 |v_ULTIMATE.start_main_~y~0#1_79|) (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 2 |v_ULTIMATE.start_main_~y~0#1_77|) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_75|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483577) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_75| 8) |v_ULTIMATE.start_main_~y~0#1_73|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) (< (+ |v_ULTIMATE.start_main_~y~0#1_79| 8) |v_ULTIMATE.start_main_~y~0#1_77|))) (not (<= |v_ULTIMATE.start_main_~y~0#1_79| (+ |c_ULTIMATE.start_main_~y~0#1| 4))))) (<= .cse0 (div (+ 2147483643 .cse1) 2)) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |c_ULTIMATE.start_main_~y~0#1| 8) |v_ULTIMATE.start_main_~y~0#1_75|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_75|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483581) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_75| 8) |v_ULTIMATE.start_main_~y~0#1_73|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2))) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|)) 2147483589) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) (< (+ |c_ULTIMATE.start_main_~y~0#1| 8) |v_ULTIMATE.start_main_~y~0#1_71|))) (<= (+ |c_ULTIMATE.start_main_~y~0#1| 9) (div (+ (- 7) .cse2 (div (+ 2147483613 .cse1) 2)) 2)) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |c_ULTIMATE.start_main_~y~0#1| 8) |v_ULTIMATE.start_main_~y~0#1_73|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483585) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2))) (forall ((|v_ULTIMATE.start_main_~y~0#1_75| Int)) (or (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (<= (+ (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_75|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483585) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_75| 8) |v_ULTIMATE.start_main_~y~0#1_73|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2))) (not (<= |v_ULTIMATE.start_main_~y~0#1_75| (+ |c_ULTIMATE.start_main_~y~0#1| 4))))) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63| Int)) (let ((.cse3 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63|))) (or (<= 2147483622 (+ |c_ULTIMATE.start_main_~x~0#1| .cse3 (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63| 5))) (<= (+ |c_ULTIMATE.start_main_~y~0#1| 7) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63|) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1| .cse3 (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63| 4)) 2147483613) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_69_105_63| 2)))) (forall ((|v_ULTIMATE.start_main_~y~0#1_71| Int)) (or (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) (div (+ (- 1) (div (+ 2147483597 (* (- 1) |c_ULTIMATE.start_main_~x~0#1|) (* |v_ULTIMATE.start_main_~y~0#1_71| (- 3))) 2)) 2)) (not (<= |v_ULTIMATE.start_main_~y~0#1_71| (+ |c_ULTIMATE.start_main_~y~0#1| 4))))) (<= .cse0 (div (+ (- 5) (div (+ .cse1 2147483633) 2)) 2)) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~y~0#1_77| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_77| 8) |v_ULTIMATE.start_main_~y~0#1_75|) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 2 |v_ULTIMATE.start_main_~y~0#1_77|) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_75|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483577) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |c_ULTIMATE.start_main_~y~0#1| 8) |v_ULTIMATE.start_main_~y~0#1_77|) (< (+ |v_ULTIMATE.start_main_~y~0#1_75| 8) |v_ULTIMATE.start_main_~y~0#1_73|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2))) (forall ((|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) (<= (+ (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483589))) (not (<= |v_ULTIMATE.start_main_~y~0#1_73| (+ |c_ULTIMATE.start_main_~y~0#1| 4))))) (forall ((|v_ULTIMATE.start_main_~y~0#1_77| Int)) (or (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (or (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (< (+ |v_ULTIMATE.start_main_~y~0#1_77| 8) |v_ULTIMATE.start_main_~y~0#1_75|) (< (+ |v_ULTIMATE.start_main_~y~0#1_73| 8) |v_ULTIMATE.start_main_~y~0#1_71|) (<= (+ |v_ULTIMATE.start_main_~y~0#1_71| 8) |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63|) (<= (+ (* |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2) |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 4) (* 2 |v_ULTIMATE.start_main_~y~0#1_77|) (* 3 |v_ULTIMATE.start_main_~y~0#1_71|) (* 2 |v_ULTIMATE.start_main_~y~0#1_75|) (* 2 |v_ULTIMATE.start_main_~y~0#1_73|)) 2147483581) (< (+ |v_ULTIMATE.start_main_~y~0#1_75| 8) |v_ULTIMATE.start_main_~y~0#1_73|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~x~0#1_70_110_63| 2))) (not (<= |v_ULTIMATE.start_main_~y~0#1_77| (+ |c_ULTIMATE.start_main_~y~0#1| 4))))) (<= (+ |c_ULTIMATE.start_main_~y~0#1| 6) (div (+ 2147483635 .cse1 .cse2) 2)) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 2147483643))) is different from false [2022-07-14 13:59:50,494 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-07-14 13:59:50,495 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 101 [2022-07-14 13:59:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-14 13:59:50,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4241 ImplicationChecksByTransitivity, 165.3s TimeCoverageRelationStatistics Valid=2251, Invalid=6800, Unknown=73, NotChecked=188, Total=9312 [2022-07-14 13:59:50,497 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1332 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:59:50,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 156 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 97 Invalid, 0 Unknown, 36 Unchecked, 0.1s Time] [2022-07-14 13:59:50,513 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 13:59:50,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:59:50,698 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:894) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 48 more [2022-07-14 13:59:50,701 INFO L158 Benchmark]: Toolchain (without parser) took 238339.16ms. Allocated memory was 111.1MB in the beginning and 167.8MB in the end (delta: 56.6MB). Free memory was 82.3MB in the beginning and 73.8MB in the end (delta: 8.6MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2022-07-14 13:59:50,702 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:59:50,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.29ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 82.3MB in the beginning and 113.1MB in the end (delta: -30.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-07-14 13:59:50,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.73ms. Allocated memory is still 138.4MB. Free memory was 113.1MB in the beginning and 112.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:59:50,702 INFO L158 Benchmark]: Boogie Preprocessor took 17.09ms. Allocated memory is still 138.4MB. Free memory was 112.0MB in the beginning and 110.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:59:50,702 INFO L158 Benchmark]: RCFGBuilder took 203.70ms. Allocated memory is still 138.4MB. Free memory was 110.9MB in the beginning and 102.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 13:59:50,703 INFO L158 Benchmark]: TraceAbstraction took 237899.07ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 101.5MB in the beginning and 73.8MB in the end (delta: 27.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2022-07-14 13:59:50,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.29ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 82.3MB in the beginning and 113.1MB in the end (delta: -30.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.73ms. Allocated memory is still 138.4MB. Free memory was 113.1MB in the beginning and 112.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.09ms. Allocated memory is still 138.4MB. Free memory was 112.0MB in the beginning and 110.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.70ms. Allocated memory is still 138.4MB. Free memory was 110.9MB in the beginning and 102.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 237899.07ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 101.5MB in the beginning and 73.8MB in the end (delta: 27.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")