./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec 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/busybox-1.22.0/hostid.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 3b6e96321d82dea19b0b24b62173907aded16288 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 11:41:04,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 11:41:04,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 11:41:04,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 11:41:04,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 11:41:04,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 11:41:04,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 11:41:04,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 11:41:04,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 11:41:04,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 11:41:04,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 11:41:04,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 11:41:04,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 11:41:04,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 11:41:04,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 11:41:04,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 11:41:04,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 11:41:04,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 11:41:04,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 11:41:04,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 11:41:04,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 11:41:04,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 11:41:04,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 11:41:04,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 11:41:04,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 11:41:04,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 11:41:04,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 11:41:04,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 11:41:04,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 11:41:04,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 11:41:04,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 11:41:04,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 11:41:04,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 11:41:04,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 11:41:04,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 11:41:04,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 11:41:04,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 11:41:04,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 11:41:04,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 11:41:04,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 11:41:04,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 11:41:04,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-27 11:41:04,969 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 11:41:04,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 11:41:04,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 11:41:04,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 11:41:04,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 11:41:04,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 11:41:04,971 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 11:41:04,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 11:41:04,972 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 11:41:04,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 11:41:04,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 11:41:04,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 11:41:04,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 11:41:04,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 11:41:04,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 11:41:04,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:41:04,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 11:41:04,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 11:41:04,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 11:41:04,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 11:41:04,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 11:41:04,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 11:41:04,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 11:41:04,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b6e96321d82dea19b0b24b62173907aded16288 [2021-08-27 11:41:05,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 11:41:05,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 11:41:05,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 11:41:05,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 11:41:05,286 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 11:41:05,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/hostid.i [2021-08-27 11:41:05,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eafd40ed4/e185a330d4994c5ba0ff5c99a6359705/FLAGe32f3b1fd [2021-08-27 11:41:06,040 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 11:41:06,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/hostid.i [2021-08-27 11:41:06,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eafd40ed4/e185a330d4994c5ba0ff5c99a6359705/FLAGe32f3b1fd [2021-08-27 11:41:06,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eafd40ed4/e185a330d4994c5ba0ff5c99a6359705 [2021-08-27 11:41:06,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 11:41:06,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 11:41:06,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 11:41:06,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 11:41:06,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 11:41:06,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:41:06" (1/1) ... [2021-08-27 11:41:06,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b304bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:06, skipping insertion in model container [2021-08-27 11:41:06,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:41:06" (1/1) ... [2021-08-27 11:41:06,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 11:41:06,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 11:41:07,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:41:07,205 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 11:41:07,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:41:07,374 INFO L208 MainTranslator]: Completed translation [2021-08-27 11:41:07,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07 WrapperNode [2021-08-27 11:41:07,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 11:41:07,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 11:41:07,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 11:41:07,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 11:41:07,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 11:41:07,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 11:41:07,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 11:41:07,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 11:41:07,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 11:41:07,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 11:41:07,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 11:41:07,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 11:41:07,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (1/1) ... [2021-08-27 11:41:07,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:41:07,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:07,524 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) [2021-08-27 11:41:07,532 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 [2021-08-27 11:41:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 11:41:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 11:41:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2021-08-27 11:41:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 11:41:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 11:41:07,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 11:41:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 11:41:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 11:41:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 11:41:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 11:41:08,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 11:41:08,114 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-08-27 11:41:08,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:41:08 BoogieIcfgContainer [2021-08-27 11:41:08,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 11:41:08,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 11:41:08,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 11:41:08,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 11:41:08,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:41:06" (1/3) ... [2021-08-27 11:41:08,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e842693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:41:08, skipping insertion in model container [2021-08-27 11:41:08,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:41:07" (2/3) ... [2021-08-27 11:41:08,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e842693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:41:08, skipping insertion in model container [2021-08-27 11:41:08,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:41:08" (3/3) ... [2021-08-27 11:41:08,121 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2021-08-27 11:41:08,125 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 11:41:08,125 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-08-27 11:41:08,159 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 11:41:08,164 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 11:41:08,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-08-27 11:41:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 49 states have internal predecessors, (59), 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) [2021-08-27 11:41:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-27 11:41:08,177 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:08,178 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-27 11:41:08,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:08,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:08,188 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-08-27 11:41:08,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:08,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783694546] [2021-08-27 11:41:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:08,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:41:08,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:08,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783694546] [2021-08-27 11:41:08,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783694546] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:08,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:41:08,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:41:08,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688041057] [2021-08-27 11:41:08,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:41:08,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:08,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:41:08,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:08,591 INFO L87 Difference]: Start difference. First operand has 50 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 49 states have internal predecessors, (59), 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) [2021-08-27 11:41:08,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:08,634 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2021-08-27 11:41:08,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:41:08,636 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 [2021-08-27 11:41:08,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:08,643 INFO L225 Difference]: With dead ends: 98 [2021-08-27 11:41:08,643 INFO L226 Difference]: Without dead ends: 49 [2021-08-27 11:41:08,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-27 11:41:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-08-27 11:41:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.606060606060606) internal successors, (53), 48 states have internal predecessors, (53), 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) [2021-08-27 11:41:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-08-27 11:41:08,677 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 4 [2021-08-27 11:41:08,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:08,677 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-08-27 11:41:08,677 INFO L471 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) [2021-08-27 11:41:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-08-27 11:41:08,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:41:08,678 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:08,678 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-08-27 11:41:08,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 11:41:08,679 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:08,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:08,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2021-08-27 11:41:08,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:08,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707367831] [2021-08-27 11:41:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:08,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 11:41:08,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:08,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707367831] [2021-08-27 11:41:08,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707367831] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:08,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:41:08,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:41:08,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202860920] [2021-08-27 11:41:08,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:41:08,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:08,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:41:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:08,792 INFO L87 Difference]: Start difference. First operand 49 states and 53 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) [2021-08-27 11:41:08,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:08,813 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-08-27 11:41:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:41:08,814 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 [2021-08-27 11:41:08,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:08,815 INFO L225 Difference]: With dead ends: 49 [2021-08-27 11:41:08,827 INFO L226 Difference]: Without dead ends: 48 [2021-08-27 11:41:08,828 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-27 11:41:08,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-08-27 11:41:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 47 states have internal predecessors, (52), 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) [2021-08-27 11:41:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-08-27 11:41:08,839 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 7 [2021-08-27 11:41:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:08,839 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-08-27 11:41:08,840 INFO L471 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) [2021-08-27 11:41:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-08-27 11:41:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-27 11:41:08,841 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:08,841 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-08-27 11:41:08,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 11:41:08,842 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:08,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:08,850 INFO L82 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2021-08-27 11:41:08,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:08,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488540436] [2021-08-27 11:41:08,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:08,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:41:08,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:08,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488540436] [2021-08-27 11:41:08,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488540436] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:08,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852180485] [2021-08-27 11:41:08,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:08,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:08,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:08,949 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) [2021-08-27 11:41:08,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 11:41:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:09,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 11:41:09,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:41:09,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852180485] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:09,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 11:41:09,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-08-27 11:41:09,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889016443] [2021-08-27 11:41:09,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:41:09,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:41:09,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:41:09,175 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:09,203 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2021-08-27 11:41:09,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:41:09,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-27 11:41:09,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:09,205 INFO L225 Difference]: With dead ends: 48 [2021-08-27 11:41:09,205 INFO L226 Difference]: Without dead ends: 47 [2021-08-27 11:41:09,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:41:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-27 11:41:09,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-08-27 11:41:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-08-27 11:41:09,217 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2021-08-27 11:41:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:09,218 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-08-27 11:41:09,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-08-27 11:41:09,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-27 11:41:09,218 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:09,219 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:09,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:09,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:09,437 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:09,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:09,437 INFO L82 PathProgramCache]: Analyzing trace with hash -334468778, now seen corresponding path program 1 times [2021-08-27 11:41:09,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:09,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511330792] [2021-08-27 11:41:09,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:09,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:41:09,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:09,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511330792] [2021-08-27 11:41:09,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511330792] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:09,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815358526] [2021-08-27 11:41:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:09,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:09,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:09,491 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) [2021-08-27 11:41:09,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-27 11:41:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:09,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 11:41:09,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:41:09,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815358526] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:09,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:09,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-08-27 11:41:09,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458145868] [2021-08-27 11:41:09,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 11:41:09,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 11:41:09,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:41:09,648 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-08-27 11:41:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:09,666 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2021-08-27 11:41:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:41:09,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-27 11:41:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:09,667 INFO L225 Difference]: With dead ends: 89 [2021-08-27 11:41:09,667 INFO L226 Difference]: Without dead ends: 50 [2021-08-27 11:41:09,668 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:41:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-08-27 11:41:09,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-08-27 11:41:09,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.5294117647058822) internal successors, (52), 47 states have internal predecessors, (52), 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) [2021-08-27 11:41:09,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-08-27 11:41:09,671 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 9 [2021-08-27 11:41:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:09,671 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-08-27 11:41:09,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-08-27 11:41:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-08-27 11:41:09,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 11:41:09,672 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:09,672 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:09,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:09,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-08-27 11:41:09,893 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1759164880, now seen corresponding path program 2 times [2021-08-27 11:41:09,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:09,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284280237] [2021-08-27 11:41:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:09,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:41:09,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:09,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284280237] [2021-08-27 11:41:09,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284280237] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:09,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973456549] [2021-08-27 11:41:09,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:41:09,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:09,971 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) [2021-08-27 11:41:09,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-27 11:41:10,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 11:41:10,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:41:10,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 11:41:10,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-27 11:41:10,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973456549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:10,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 11:41:10,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-27 11:41:10,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526267900] [2021-08-27 11:41:10,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:41:10,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:10,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:41:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:41:10,238 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:10,307 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2021-08-27 11:41:10,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:41:10,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-27 11:41:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:10,308 INFO L225 Difference]: With dead ends: 48 [2021-08-27 11:41:10,308 INFO L226 Difference]: Without dead ends: 40 [2021-08-27 11:41:10,308 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 65.4ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:41:10,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-08-27 11:41:10,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-08-27 11:41:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 39 states have internal predecessors, (44), 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) [2021-08-27 11:41:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-08-27 11:41:10,311 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 12 [2021-08-27 11:41:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:10,312 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-08-27 11:41:10,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-08-27 11:41:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 11:41:10,313 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:10,313 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:10,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:10,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:10,541 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:10,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:10,541 INFO L82 PathProgramCache]: Analyzing trace with hash -172633462, now seen corresponding path program 1 times [2021-08-27 11:41:10,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:10,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725460066] [2021-08-27 11:41:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:10,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-27 11:41:10,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:10,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725460066] [2021-08-27 11:41:10,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725460066] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:10,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:41:10,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:41:10,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223194152] [2021-08-27 11:41:10,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:41:10,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:10,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:41:10,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:10,609 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:10,627 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-08-27 11:41:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:41:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-27 11:41:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:10,628 INFO L225 Difference]: With dead ends: 64 [2021-08-27 11:41:10,628 INFO L226 Difference]: Without dead ends: 43 [2021-08-27 11:41:10,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:10,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-27 11:41:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-08-27 11:41:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 42 states have internal predecessors, (47), 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) [2021-08-27 11:41:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2021-08-27 11:41:10,632 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 22 [2021-08-27 11:41:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:10,633 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2021-08-27 11:41:10,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2021-08-27 11:41:10,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 11:41:10,633 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:10,634 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:10,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 11:41:10,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:10,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:10,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883481, now seen corresponding path program 1 times [2021-08-27 11:41:10,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:10,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193604883] [2021-08-27 11:41:10,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:10,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-27 11:41:10,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:10,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193604883] [2021-08-27 11:41:10,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193604883] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:10,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:41:10,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:41:10,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407393664] [2021-08-27 11:41:10,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:41:10,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:10,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:41:10,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:10,703 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:10,728 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2021-08-27 11:41:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:41:10,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-27 11:41:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:10,729 INFO L225 Difference]: With dead ends: 67 [2021-08-27 11:41:10,730 INFO L226 Difference]: Without dead ends: 65 [2021-08-27 11:41:10,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:10,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-08-27 11:41:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2021-08-27 11:41:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 51 states have internal predecessors, (60), 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) [2021-08-27 11:41:10,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2021-08-27 11:41:10,734 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 25 [2021-08-27 11:41:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:10,735 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2021-08-27 11:41:10,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2021-08-27 11:41:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 11:41:10,736 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:10,736 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:10,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 11:41:10,736 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:10,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883426, now seen corresponding path program 1 times [2021-08-27 11:41:10,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:10,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592962775] [2021-08-27 11:41:10,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:10,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-27 11:41:10,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:10,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592962775] [2021-08-27 11:41:10,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592962775] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:10,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:41:10,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:41:10,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87052197] [2021-08-27 11:41:10,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:41:10,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:10,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:41:10,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:10,789 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:10,802 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2021-08-27 11:41:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:41:10,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-27 11:41:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:10,803 INFO L225 Difference]: With dead ends: 52 [2021-08-27 11:41:10,803 INFO L226 Difference]: Without dead ends: 51 [2021-08-27 11:41:10,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-27 11:41:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-08-27 11:41:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 50 states have internal predecessors, (58), 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) [2021-08-27 11:41:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2021-08-27 11:41:10,807 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2021-08-27 11:41:10,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:10,808 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2021-08-27 11:41:10,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2021-08-27 11:41:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 11:41:10,808 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:10,809 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:10,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-27 11:41:10,809 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:10,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1387811266, now seen corresponding path program 1 times [2021-08-27 11:41:10,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:10,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902359307] [2021-08-27 11:41:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:10,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:10,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-27 11:41:10,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:10,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902359307] [2021-08-27 11:41:10,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902359307] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:10,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601564556] [2021-08-27 11:41:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:10,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:10,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:10,871 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) [2021-08-27 11:41:10,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-27 11:41:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:11,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 11:41:11,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-27 11:41:11,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601564556] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:11,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:11,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 7 [2021-08-27 11:41:11,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351497478] [2021-08-27 11:41:11,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 11:41:11,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 11:41:11,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:41:11,102 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:11,159 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2021-08-27 11:41:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 11:41:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-27 11:41:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:11,161 INFO L225 Difference]: With dead ends: 108 [2021-08-27 11:41:11,161 INFO L226 Difference]: Without dead ends: 66 [2021-08-27 11:41:11,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:41:11,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-08-27 11:41:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2021-08-27 11:41:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 48 states have internal predecessors, (55), 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) [2021-08-27 11:41:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2021-08-27 11:41:11,166 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2021-08-27 11:41:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:11,166 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2021-08-27 11:41:11,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2021-08-27 11:41:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-27 11:41:11,167 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:11,167 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:11,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:11,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:11,381 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:11,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:11,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1627182508, now seen corresponding path program 1 times [2021-08-27 11:41:11,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:11,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696721574] [2021-08-27 11:41:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:11,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 11:41:11,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:11,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696721574] [2021-08-27 11:41:11,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696721574] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:11,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:41:11,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:41:11,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356583224] [2021-08-27 11:41:11,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:41:11,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:11,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:41:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:11,435 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2021-08-27 11:41:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:11,449 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-08-27 11:41:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:41:11,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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 31 [2021-08-27 11:41:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:11,451 INFO L225 Difference]: With dead ends: 54 [2021-08-27 11:41:11,451 INFO L226 Difference]: Without dead ends: 52 [2021-08-27 11:41:11,451 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:41:11,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-27 11:41:11,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-08-27 11:41:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 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) [2021-08-27 11:41:11,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2021-08-27 11:41:11,454 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 31 [2021-08-27 11:41:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:11,454 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2021-08-27 11:41:11,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 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) [2021-08-27 11:41:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2021-08-27 11:41:11,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 11:41:11,461 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:11,462 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:11,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-27 11:41:11,462 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:11,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:11,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1901645191, now seen corresponding path program 1 times [2021-08-27 11:41:11,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:11,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208336506] [2021-08-27 11:41:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:11,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-27 11:41:11,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:11,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208336506] [2021-08-27 11:41:11,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208336506] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:11,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020599160] [2021-08-27 11:41:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:11,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:11,540 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) [2021-08-27 11:41:11,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-27 11:41:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:11,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 11:41:11,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 11:41:11,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020599160] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:11,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:11,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 8 [2021-08-27 11:41:11,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472283205] [2021-08-27 11:41:11,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 11:41:11,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:11,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 11:41:11,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:41:11,829 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2021-08-27 11:41:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:11,881 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2021-08-27 11:41:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 11:41:11,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 [2021-08-27 11:41:11,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:11,883 INFO L225 Difference]: With dead ends: 100 [2021-08-27 11:41:11,883 INFO L226 Difference]: Without dead ends: 60 [2021-08-27 11:41:11,883 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:41:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-08-27 11:41:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2021-08-27 11:41:11,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 56 states have internal predecessors, (63), 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) [2021-08-27 11:41:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2021-08-27 11:41:11,887 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 34 [2021-08-27 11:41:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:11,888 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2021-08-27 11:41:11,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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) [2021-08-27 11:41:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2021-08-27 11:41:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 11:41:11,889 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:11,889 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:11,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:12,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-27 11:41:12,106 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:12,107 INFO L82 PathProgramCache]: Analyzing trace with hash 71284786, now seen corresponding path program 1 times [2021-08-27 11:41:12,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:12,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243701905] [2021-08-27 11:41:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:12,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-08-27 11:41:12,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:12,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243701905] [2021-08-27 11:41:12,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243701905] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:12,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672116826] [2021-08-27 11:41:12,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:12,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:12,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:12,184 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) [2021-08-27 11:41:12,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-27 11:41:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:12,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 11:41:12,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-08-27 11:41:12,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672116826] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:12,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:12,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2021-08-27 11:41:12,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984097320] [2021-08-27 11:41:12,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 11:41:12,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:12,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 11:41:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:41:12,504 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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) [2021-08-27 11:41:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:12,568 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2021-08-27 11:41:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 11:41:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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 38 [2021-08-27 11:41:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:12,570 INFO L225 Difference]: With dead ends: 114 [2021-08-27 11:41:12,570 INFO L226 Difference]: Without dead ends: 72 [2021-08-27 11:41:12,571 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 36.4ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:41:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-08-27 11:41:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2021-08-27 11:41:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 65 states have internal predecessors, (72), 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) [2021-08-27 11:41:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2021-08-27 11:41:12,575 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 38 [2021-08-27 11:41:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:12,575 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2021-08-27 11:41:12,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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) [2021-08-27 11:41:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2021-08-27 11:41:12,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-27 11:41:12,576 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:12,576 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:12,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:12,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:12,785 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:12,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1472783081, now seen corresponding path program 1 times [2021-08-27 11:41:12,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:12,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153200378] [2021-08-27 11:41:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:12,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-08-27 11:41:12,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:12,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153200378] [2021-08-27 11:41:12,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153200378] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:12,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948671886] [2021-08-27 11:41:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:12,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:12,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:12,844 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) [2021-08-27 11:41:12,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-27 11:41:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:13,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 11:41:13,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:13,256 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-27 11:41:13,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948671886] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:13,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:13,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8] total 10 [2021-08-27 11:41:13,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30021058] [2021-08-27 11:41:13,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 11:41:13,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:13,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 11:41:13,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:41:13,258 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2021-08-27 11:41:13,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:13,322 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2021-08-27 11:41:13,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 11:41:13,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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 41 [2021-08-27 11:41:13,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:13,324 INFO L225 Difference]: With dead ends: 118 [2021-08-27 11:41:13,324 INFO L226 Difference]: Without dead ends: 70 [2021-08-27 11:41:13,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.0ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:41:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-08-27 11:41:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2021-08-27 11:41:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 67 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2021-08-27 11:41:13,333 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 41 [2021-08-27 11:41:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:13,334 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2021-08-27 11:41:13,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 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) [2021-08-27 11:41:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2021-08-27 11:41:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 11:41:13,335 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:13,335 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:13,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-08-27 11:41:13,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:13,549 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:13,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:13,549 INFO L82 PathProgramCache]: Analyzing trace with hash 312315462, now seen corresponding path program 2 times [2021-08-27 11:41:13,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:13,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261952755] [2021-08-27 11:41:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:13,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 11:41:13,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:13,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261952755] [2021-08-27 11:41:13,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261952755] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:13,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487060423] [2021-08-27 11:41:13,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:41:13,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:13,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:13,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:41:13,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 11:41:13,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 11:41:13,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:41:13,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 11:41:13,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-08-27 11:41:13,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487060423] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:13,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:13,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 11:41:13,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976107557] [2021-08-27 11:41:13,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:41:13,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:13,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:41:13,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:41:13,972 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 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) [2021-08-27 11:41:14,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:14,024 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2021-08-27 11:41:14,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:41:14,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 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) Word has length 46 [2021-08-27 11:41:14,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:14,025 INFO L225 Difference]: With dead ends: 68 [2021-08-27 11:41:14,025 INFO L226 Difference]: Without dead ends: 53 [2021-08-27 11:41:14,025 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:41:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-27 11:41:14,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-27 11:41:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 52 states have internal predecessors, (56), 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) [2021-08-27 11:41:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2021-08-27 11:41:14,028 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 46 [2021-08-27 11:41:14,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:14,028 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2021-08-27 11:41:14,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 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) [2021-08-27 11:41:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2021-08-27 11:41:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-27 11:41:14,029 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:14,029 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:14,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:14,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-08-27 11:41:14,244 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:14,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:14,244 INFO L82 PathProgramCache]: Analyzing trace with hash -889966142, now seen corresponding path program 2 times [2021-08-27 11:41:14,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:14,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760918343] [2021-08-27 11:41:14,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:14,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-08-27 11:41:14,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:14,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760918343] [2021-08-27 11:41:14,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760918343] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:14,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246223776] [2021-08-27 11:41:14,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:41:14,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:14,319 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:41:14,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 11:41:14,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 11:41:14,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:41:14,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 11:41:14,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-08-27 11:41:14,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246223776] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:14,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:14,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-08-27 11:41:14,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599032469] [2021-08-27 11:41:14,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 11:41:14,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:14,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 11:41:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:41:14,712 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:14,779 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-08-27 11:41:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 11:41:14,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-08-27 11:41:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:14,782 INFO L225 Difference]: With dead ends: 64 [2021-08-27 11:41:14,782 INFO L226 Difference]: Without dead ends: 63 [2021-08-27 11:41:14,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:41:14,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-08-27 11:41:14,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2021-08-27 11:41:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 51 states have internal predecessors, (55), 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) [2021-08-27 11:41:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2021-08-27 11:41:14,786 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 50 [2021-08-27 11:41:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:14,786 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2021-08-27 11:41:14,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2021-08-27 11:41:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 11:41:14,787 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:41:14,787 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:41:14,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:15,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-27 11:41:15,005 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-08-27 11:41:15,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:41:15,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1819146527, now seen corresponding path program 1 times [2021-08-27 11:41:15,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:41:15,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337600169] [2021-08-27 11:41:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:15,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:41:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:15,075 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-08-27 11:41:15,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:41:15,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337600169] [2021-08-27 11:41:15,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337600169] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:15,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556818407] [2021-08-27 11:41:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:41:15,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:41:15,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:41:15,089 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:41:15,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 11:41:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:41:15,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 11:41:15,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-27 11:41:15,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556818407] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:41:15,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:41:15,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9] total 11 [2021-08-27 11:41:15,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360631639] [2021-08-27 11:41:15,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 11:41:15,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 11:41:15,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:41:15,546 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-08-27 11:41:15,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:15,647 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-08-27 11:41:15,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 11:41:15,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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 51 [2021-08-27 11:41:15,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:15,648 INFO L225 Difference]: With dead ends: 87 [2021-08-27 11:41:15,648 INFO L226 Difference]: Without dead ends: 0 [2021-08-27 11:41:15,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:41:15,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-27 11:41:15,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-27 11:41:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:15,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 11:41:15,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2021-08-27 11:41:15,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:15,649 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 11:41:15,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 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) [2021-08-27 11:41:15,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-27 11:41:15,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-27 11:41:15,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:15,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:15,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-27 11:41:15,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-27 11:41:15,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:16,186 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,187 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2021-08-27 11:41:16,187 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,187 INFO L857 garLoopResultBuilder]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2021-08-27 11:41:16,187 INFO L857 garLoopResultBuilder]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2021-08-27 11:41:16,187 INFO L853 garLoopResultBuilder]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse3 (<= 1 ULTIMATE.start_main_~j~0)) (.cse7 (= ULTIMATE.start_main_~i~4 0)) (.cse0 (<= 1 ULTIMATE.start_main_~i~3)) (.cse1 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (< ULTIMATE.start_main_~i~4 268435454)) (.cse8 (= ULTIMATE.start_main_~j~0 0)) (.cse5 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse6 (<= 1 ULTIMATE.start_main_~i~4))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse7) (and .cse0 .cse1 .cse2 .cse8 .cse5 .cse7) (and .cse0 .cse1 .cse2 .cse4 .cse8 .cse5 .cse6))) [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1886(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1886-1(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1886-2(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L860 garLoopResultBuilder]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1887(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1887-2(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1887-3(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2021-08-27 11:41:16,188 INFO L857 garLoopResultBuilder]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L853 garLoopResultBuilder]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~i~3) [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L853 garLoopResultBuilder]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~3) (<= ULTIMATE.start_main_~argc~0 10000) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 1 ULTIMATE.start_main_~argc~0)) [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L853 garLoopResultBuilder]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~i~3)) (.cse1 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 1 ULTIMATE.start_main_~argc~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~j~0) .cse3 (<= 1 ULTIMATE.start_main_~i~4)) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~i~4 0)))) [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2021-08-27 11:41:16,189 INFO L857 garLoopResultBuilder]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L1782-1(lines 1782 1783) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L853 garLoopResultBuilder]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~i~3)) (.cse1 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (<= 1 ULTIMATE.start_main_~argc~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start_main_~i~5) .cse3) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~5 0) .cse3))) [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L853 garLoopResultBuilder]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~3) (<= ULTIMATE.start_main_~argc~0 10000) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 1 ULTIMATE.start_main_~argc~0)) [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2021-08-27 11:41:16,190 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-08-27 11:41:16,191 INFO L853 garLoopResultBuilder]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~3) (<= ULTIMATE.start_main_~argc~0 10000) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 1 ULTIMATE.start_main_~argc~0)) [2021-08-27 11:41:16,191 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2021-08-27 11:41:16,191 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2021-08-27 11:41:16,191 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2021-08-27 11:41:16,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 11:41:16,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:41:16 BoogieIcfgContainer [2021-08-27 11:41:16,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 11:41:16,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 11:41:16,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 11:41:16,210 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 11:41:16,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:41:08" (3/4) ... [2021-08-27 11:41:16,213 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-27 11:41:16,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-08-27 11:41:16,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-27 11:41:16,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-27 11:41:16,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-27 11:41:16,254 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 11:41:16,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 11:41:16,255 INFO L168 Benchmark]: Toolchain (without parser) took 9885.41 ms. Allocated memory was 62.9 MB in the beginning and 192.9 MB in the end (delta: 130.0 MB). Free memory was 38.9 MB in the beginning and 101.6 MB in the end (delta: -62.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,255 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 39.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:41:16,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1003.70 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 38.8 MB in the beginning and 46.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.48 ms. Allocated memory is still 81.8 MB. Free memory was 46.1 MB in the beginning and 42.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,256 INFO L168 Benchmark]: Boogie Preprocessor took 46.03 ms. Allocated memory is still 81.8 MB. Free memory was 42.6 MB in the beginning and 40.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,257 INFO L168 Benchmark]: RCFGBuilder took 616.98 ms. Allocated memory is still 81.8 MB. Free memory was 40.2 MB in the beginning and 43.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,257 INFO L168 Benchmark]: TraceAbstraction took 8092.43 ms. Allocated memory was 81.8 MB in the beginning and 192.9 MB in the end (delta: 111.1 MB). Free memory was 42.8 MB in the beginning and 105.8 MB in the end (delta: -62.9 MB). Peak memory consumption was 104.6 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,257 INFO L168 Benchmark]: Witness Printer took 44.46 ms. Allocated memory is still 192.9 MB. Free memory was 105.8 MB in the beginning and 101.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:16,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 43.8 MB in the end (delta: 39.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1003.70 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 38.8 MB in the beginning and 46.1 MB in the end (delta: -7.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.48 ms. Allocated memory is still 81.8 MB. Free memory was 46.1 MB in the beginning and 42.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.03 ms. Allocated memory is still 81.8 MB. Free memory was 42.6 MB in the beginning and 40.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 616.98 ms. Allocated memory is still 81.8 MB. Free memory was 40.2 MB in the beginning and 43.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8092.43 ms. Allocated memory was 81.8 MB in the beginning and 192.9 MB in the end (delta: 111.1 MB). Free memory was 42.8 MB in the beginning and 105.8 MB in the end (delta: -62.9 MB). Peak memory consumption was 104.6 MB. Max. memory is 16.1 GB. * Witness Printer took 44.46 ms. Allocated memory is still 192.9 MB. Free memory was 105.8 MB in the beginning and 101.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 8036.4ms, OverallIterations: 16, TraceHistogramMax: 6, EmptinessCheckTime: 21.8ms, AutomataDifference: 797.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 312.9ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 550 SDtfs, 272 SDslu, 985 SDs, 0 SdLazy, 436 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 411.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 292 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 340.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=13, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 85.2ms AutomataMinimizationTime, 16 MinimizatonAttempts, 56 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 195 HoareAnnotationTreeSize, 8 FomulaSimplifications, 527 FormulaSimplificationTreeSizeReduction, 59.4ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 147 FormulaSimplificationTreeSizeReductionInter, 246.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 200.6ms SsaConstructionTime, 477.6ms SatisfiabilityAnalysisTime, 2173.8ms InterpolantComputationTime, 744 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 1235 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1630 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 467/672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: ((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: ((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: 0 <= i - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((((1 <= i && argc <= 10000) && cond == 1) && 1 <= j) && 1 <= argc) && 1 <= i) || ((((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc) && i == 0) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: ((1 <= i && argc <= 10000) && cond == 1) && 1 <= argc - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: ((((((((1 <= i && argc <= 10000) && cond == 1) && 1 <= j) && i < 268435454) && 1 <= argc) && 1 <= i) || (((((1 <= i && argc <= 10000) && cond == 1) && 1 <= j) && 1 <= argc) && i == 0)) || (((((1 <= i && argc <= 10000) && cond == 1) && j == 0) && 1 <= argc) && i == 0)) || ((((((1 <= i && argc <= 10000) && cond == 1) && i < 268435454) && j == 0) && 1 <= argc) && 1 <= i) - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: ((((1 <= i && argc <= 10000) && cond == 1) && 1 <= i) && 1 <= argc) || ((((1 <= i && argc <= 10000) && cond == 1) && i == 0) && 1 <= argc) RESULT: Ultimate proved your program to be correct! [2021-08-27 11:41:16,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...