./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d28857c86a3c83fc75b1b8cf8125f1c52a370911 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:51:25,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:51:25,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:51:25,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:51:25,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:51:25,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:51:25,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:51:25,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:51:25,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:51:25,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:51:25,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:51:25,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:51:25,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:51:25,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:51:25,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:51:25,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:51:25,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:51:25,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:51:25,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:51:25,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:51:25,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:51:25,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:51:25,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:51:25,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:51:25,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:51:25,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:51:25,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:51:25,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:51:25,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:51:25,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:51:25,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:51:25,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:51:25,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:51:25,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:51:25,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:51:25,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:51:25,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:51:25,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:51:25,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:51:25,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:51:25,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:51:25,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-16 02:51:25,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:51:25,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:51:25,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:51:25,325 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:51:25,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:51:25,325 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:51:25,326 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:51:25,326 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:51:25,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:51:25,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:51:25,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:51:25,327 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:51:25,328 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:51:25,328 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:51:25,328 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:51:25,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:51:25,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:51:25,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:51:25,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:51:25,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:51:25,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:51:25,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:51:25,332 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:51:25,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:51:25,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:51:25,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:51:25,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:51:25,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:51:25,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:51:25,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:51:25,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:51:25,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:51:25,335 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:51:25,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:51:25,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:51:25,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:51:25,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:51:25,337 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28857c86a3c83fc75b1b8cf8125f1c52a370911 [2021-10-16 02:51:25,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:51:25,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:51:25,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:51:25,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:51:25,665 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:51:25,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-10-16 02:51:25,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/data/478540f30/f15ba299784b4e66aebc3710a0b4dcf7/FLAG8123dbe19 [2021-10-16 02:51:26,393 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:51:26,394 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-10-16 02:51:26,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/data/478540f30/f15ba299784b4e66aebc3710a0b4dcf7/FLAG8123dbe19 [2021-10-16 02:51:26,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/data/478540f30/f15ba299784b4e66aebc3710a0b4dcf7 [2021-10-16 02:51:26,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:51:26,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:51:26,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:51:26,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:51:26,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:51:26,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:51:26" (1/1) ... [2021-10-16 02:51:26,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b77e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:26, skipping insertion in model container [2021-10-16 02:51:26,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:51:26" (1/1) ... [2021-10-16 02:51:26,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:51:26,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:51:26,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:51:26,984 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:51:27,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:51:27,029 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:51:27,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27 WrapperNode [2021-10-16 02:51:27,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:51:27,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:51:27,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:51:27,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:51:27,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:51:27,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:51:27,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:51:27,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:51:27,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:51:27,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:51:27,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:51:27,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:51:27,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (1/1) ... [2021-10-16 02:51:27,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:51:27,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:27,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:51:27,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:51:27,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:51:27,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:51:27,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:51:27,506 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:51:27,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:51:27 BoogieIcfgContainer [2021-10-16 02:51:27,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:51:27,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:51:27,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:51:27,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:51:27,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:51:26" (1/3) ... [2021-10-16 02:51:27,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46632c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:51:27, skipping insertion in model container [2021-10-16 02:51:27,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:27" (2/3) ... [2021-10-16 02:51:27,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46632c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:51:27, skipping insertion in model container [2021-10-16 02:51:27,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:51:27" (3/3) ... [2021-10-16 02:51:27,520 INFO L111 eAbstractionObserver]: Analyzing ICFG java_LogBuiltIn.c [2021-10-16 02:51:27,527 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:51:27,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 02:51:27,583 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:51:27,592 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 [2021-10-16 02:51:27,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 02:51:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:51:27,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:27,615 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:51:27,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-16 02:51:27,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:27,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868106566] [2021-10-16 02:51:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:27,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:27,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:27,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868106566] [2021-10-16 02:51:27,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868106566] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:51:27,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:51:27,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:51:27,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097708844] [2021-10-16 02:51:27,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:51:27,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:51:27,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:51:27,947 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:28,007 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-10-16 02:51:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:51:28,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-16 02:51:28,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:28,019 INFO L225 Difference]: With dead ends: 11 [2021-10-16 02:51:28,019 INFO L226 Difference]: Without dead ends: 8 [2021-10-16 02:51:28,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:51:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-16 02:51:28,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-16 02:51:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 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) [2021-10-16 02:51:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-16 02:51:28,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2021-10-16 02:51:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:28,100 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-16 02:51:28,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-16 02:51:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:51:28,101 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:28,102 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:51:28,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:51:28,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:28,104 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-10-16 02:51:28,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:28,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826775858] [2021-10-16 02:51:28,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:28,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:28,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:28,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826775858] [2021-10-16 02:51:28,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826775858] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:51:28,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:51:28,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:51:28,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038116977] [2021-10-16 02:51:28,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:51:28,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:51:28,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:51:28,214 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:28,260 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-10-16 02:51:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:51:28,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:51:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:28,268 INFO L225 Difference]: With dead ends: 15 [2021-10-16 02:51:28,268 INFO L226 Difference]: Without dead ends: 14 [2021-10-16 02:51:28,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:51:28,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-16 02:51:28,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-10-16 02:51:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-16 02:51:28,273 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2021-10-16 02:51:28,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:28,273 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-16 02:51:28,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-16 02:51:28,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:51:28,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:28,274 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:51:28,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:51:28,275 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:28,276 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-10-16 02:51:28,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:28,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932655394] [2021-10-16 02:51:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:28,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:28,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:28,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932655394] [2021-10-16 02:51:28,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932655394] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:51:28,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:51:28,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:51:28,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983384175] [2021-10-16 02:51:28,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:51:28,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:28,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:51:28,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:51:28,327 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:28,349 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-10-16 02:51:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:51:28,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 02:51:28,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:28,350 INFO L225 Difference]: With dead ends: 12 [2021-10-16 02:51:28,351 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:51:28,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:51:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:51:28,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-16 02:51:28,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-16 02:51:28,356 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2021-10-16 02:51:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:28,356 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-16 02:51:28,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-16 02:51:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:51:28,357 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:28,358 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2021-10-16 02:51:28,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:51:28,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:28,360 INFO L82 PathProgramCache]: Analyzing trace with hash 860863857, now seen corresponding path program 1 times [2021-10-16 02:51:28,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:28,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304609668] [2021-10-16 02:51:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:28,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:28,491 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:28,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304609668] [2021-10-16 02:51:28,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304609668] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:51:28,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534950222] [2021-10-16 02:51:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:28,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:28,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:28,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:51:28,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:51:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:28,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:51:28,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:51:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:28,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:51:28,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:28,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534950222] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:51:28,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332668064] [2021-10-16 02:51:28,809 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:51:28,809 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:51:28,815 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:51:28,823 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:51:28,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:51:28,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:28,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-16 02:51:28,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:28,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-16 02:51:29,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-16 02:51:29,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,360 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:29,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:29,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,400 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-16 02:51:29,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-16 02:51:29,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-16 02:51:29,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-16 02:51:29,527 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,539 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-16 02:51:29,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-16 02:51:29,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:29,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:29,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-16 02:51:29,575 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:29,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:29,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:29,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,694 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,741 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,789 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,854 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:51:29,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-16 02:51:29,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-16 02:51:29,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-16 02:51:29,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:29,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-16 02:51:29,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:29,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:30,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-16 02:51:30,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-16 02:51:30,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-16 02:51:30,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-16 02:51:30,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-16 02:51:30,034 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:30,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:30,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:30,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:30,060 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-16 02:51:30,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:30,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:30,082 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-16 02:51:30,093 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-10-16 02:51:30,105 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-10-16 02:51:30,119 INFO L185 QuantifierPusher]: treesize reduction 24, result has 90.1 percent of original size 218 [2021-10-16 02:51:30,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:30,259 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-16 02:51:30,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:51:30,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-16 02:51:30,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-10-16 02:51:30,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051841107] [2021-10-16 02:51:30,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:51:30,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:30,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:51:30,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-10-16 02:51:30,652 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:30,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:30,750 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-10-16 02:51:30,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-16 02:51:30,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 02:51:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:30,751 INFO L225 Difference]: With dead ends: 28 [2021-10-16 02:51:30,752 INFO L226 Difference]: Without dead ends: 27 [2021-10-16 02:51:30,753 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 493.2ms TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-10-16 02:51:30,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-16 02:51:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-16 02:51:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-10-16 02:51:30,758 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 10 [2021-10-16 02:51:30,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:30,759 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-10-16 02:51:30,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:30,760 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-10-16 02:51:30,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:51:30,761 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:30,761 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1] [2021-10-16 02:51:30,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-16 02:51:30,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:30,975 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:30,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:30,976 INFO L82 PathProgramCache]: Analyzing trace with hash -333652957, now seen corresponding path program 2 times [2021-10-16 02:51:30,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:30,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323963770] [2021-10-16 02:51:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:30,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:31,134 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:31,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323963770] [2021-10-16 02:51:31,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323963770] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:51:31,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732285603] [2021-10-16 02:51:31,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 02:51:31,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:31,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:31,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:51:31,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:51:31,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-16 02:51:31,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:51:31,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:51:31,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:51:31,310 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:31,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:51:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:31,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732285603] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:51:31,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1889365637] [2021-10-16 02:51:31,581 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:51:31,582 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:51:31,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:51:31,586 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:51:31,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:51:31,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-16 02:51:31,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-16 02:51:31,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-16 02:51:31,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,729 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:31,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:31,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,744 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,792 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,796 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-16 02:51:31,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-16 02:51:31,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-16 02:51:31,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-16 02:51:31,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-16 02:51:31,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-16 02:51:31,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:31,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:31,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-16 02:51:31,853 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:31,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:31,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:31,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,982 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:31,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:31,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,000 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-16 02:51:32,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-10-16 02:51:32,004 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-10-16 02:51:32,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-10-16 02:51:32,010 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-10-16 02:51:32,019 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,035 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-16 02:51:32,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-16 02:51:32,039 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-10-16 02:51:32,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-10-16 02:51:32,045 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-16 02:51:32,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-10-16 02:51:32,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:51:32,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-10-16 02:51:32,060 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-10-16 02:51:32,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-16 02:51:32,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,121 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,128 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-16 02:51:32,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:51:32,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-16 02:51:32,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-16 02:51:32,161 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,168 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-10-16 02:51:32,181 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-16 02:51:32,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-16 02:51:32,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-16 02:51:32,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-16 02:51:32,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-16 02:51:32,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-16 02:51:32,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:32,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:32,251 INFO L185 QuantifierPusher]: treesize reduction 11, result has 89.6 percent of original size 95 [2021-10-16 02:51:32,258 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 214 [2021-10-16 02:51:32,266 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 214 [2021-10-16 02:51:32,275 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 218 [2021-10-16 02:51:32,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:32,356 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-16 02:51:32,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:51:32,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-16 02:51:32,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2021-10-16 02:51:32,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504102321] [2021-10-16 02:51:32,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 02:51:32,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 02:51:32,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-10-16 02:51:32,699 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 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) [2021-10-16 02:51:32,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:32,943 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2021-10-16 02:51:32,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-16 02:51:32,943 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 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 [2021-10-16 02:51:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:32,945 INFO L225 Difference]: With dead ends: 58 [2021-10-16 02:51:32,945 INFO L226 Difference]: Without dead ends: 57 [2021-10-16 02:51:32,946 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 712.4ms TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2021-10-16 02:51:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-16 02:51:32,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-10-16 02:51:32,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 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) [2021-10-16 02:51:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-10-16 02:51:32,956 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 25 [2021-10-16 02:51:32,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:32,956 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-10-16 02:51:32,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 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) [2021-10-16 02:51:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-10-16 02:51:32,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-16 02:51:32,959 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:32,959 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1] [2021-10-16 02:51:33,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:51:33,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:33,187 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:33,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1266934173, now seen corresponding path program 3 times [2021-10-16 02:51:33,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:33,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659459234] [2021-10-16 02:51:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:33,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:33,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:33,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659459234] [2021-10-16 02:51:33,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659459234] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:51:33,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971601533] [2021-10-16 02:51:33,613 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 02:51:33,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:33,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:33,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:51:33,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:51:33,708 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 02:51:33,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:51:33,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-16 02:51:33,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:51:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:33,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:51:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:34,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971601533] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:51:34,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [171197812] [2021-10-16 02:51:34,771 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:51:34,771 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:51:34,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:51:34,772 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:51:34,772 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:51:34,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-16 02:51:34,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-16 02:51:34,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-16 02:51:34,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:34,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:34,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:34,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:34,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:34,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:34,880 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:34,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:34,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,890 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,913 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-16 02:51:34,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-16 02:51:34,917 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-10-16 02:51:34,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-16 02:51:34,921 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,924 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-16 02:51:34,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-10-16 02:51:34,926 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,952 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-10-16 02:51:34,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-16 02:51:34,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-16 02:51:34,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-16 02:51:34,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:34,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:34,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 02:51:34,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-16 02:51:34,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-16 02:51:34,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-16 02:51:34,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:34,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-16 02:51:34,991 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:34,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:34,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,048 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,084 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,090 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-10-16 02:51:35,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-10-16 02:51:35,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-10-16 02:51:35,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-10-16 02:51:35,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,144 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-10-16 02:51:35,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-10-16 02:51:35,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-10-16 02:51:35,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-10-16 02:51:35,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,182 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:35,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:35,188 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-16 02:51:35,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-16 02:51:35,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-16 02:51:35,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-10-16 02:51:35,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:35,271 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-16 02:51:35,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:51:35,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-16 02:51:35,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2021-10-16 02:51:35,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053191655] [2021-10-16 02:51:35,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-16 02:51:35,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:35,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-16 02:51:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1985, Unknown=0, NotChecked=0, Total=2550 [2021-10-16 02:51:35,666 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 45 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:36,418 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2021-10-16 02:51:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-16 02:51:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 45 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-16 02:51:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:36,421 INFO L225 Difference]: With dead ends: 118 [2021-10-16 02:51:36,421 INFO L226 Difference]: Without dead ends: 117 [2021-10-16 02:51:36,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 1689.7ms TimeCoverageRelationStatistics Valid=1346, Invalid=3910, Unknown=0, NotChecked=0, Total=5256 [2021-10-16 02:51:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-16 02:51:36,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-10-16 02:51:36,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 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) [2021-10-16 02:51:36,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-10-16 02:51:36,440 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 55 [2021-10-16 02:51:36,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:36,440 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-10-16 02:51:36,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 45 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-10-16 02:51:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-10-16 02:51:36,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:36,447 INFO L512 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1] [2021-10-16 02:51:36,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:51:36,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-16 02:51:36,675 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:36,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:36,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1393971939, now seen corresponding path program 4 times [2021-10-16 02:51:36,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:36,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206793238] [2021-10-16 02:51:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:36,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:37,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:37,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:37,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206793238] [2021-10-16 02:51:37,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206793238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:51:37,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106482764] [2021-10-16 02:51:37,959 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-16 02:51:37,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:37,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:37,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:51:37,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 02:51:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:38,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-16 02:51:38,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:51:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:38,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:51:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:51:41,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106482764] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:51:41,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1604550473] [2021-10-16 02:51:41,051 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:51:41,051 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:51:41,051 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:51:41,051 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:51:41,051 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:51:41,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-16 02:51:41,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-16 02:51:41,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-16 02:51:41,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,165 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:41,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:41,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,183 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,202 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-16 02:51:41,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-16 02:51:41,205 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-16 02:51:41,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-16 02:51:41,209 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,213 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-16 02:51:41,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-16 02:51:41,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:41,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:51:41,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-16 02:51:41,230 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-16 02:51:41,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:51:41,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,273 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,282 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,301 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-16 02:51:41,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-10-16 02:51:41,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-16 02:51:41,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-16 02:51:41,353 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-16 02:51:41,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-10-16 02:51:41,365 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,371 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-16 02:51:41,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-16 02:51:41,392 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-16 02:51:41,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-16 02:51:41,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-16 02:51:41,408 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,416 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-16 02:51:41,418 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-16 02:51:41,421 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-16 02:51:41,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,448 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,457 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,462 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,466 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:51:41,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-10-16 02:51:41,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-16 02:51:41,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-10-16 02:51:41,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-16 02:51:41,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-16 02:51:41,482 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:51:41,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:51:41,518 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-16 02:51:41,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-16 02:51:41,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-16 02:51:41,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:51:41,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:51:41,542 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-16 02:51:41,545 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-16 02:51:41,547 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-16 02:51:41,554 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-10-16 02:51:41,562 INFO L185 QuantifierPusher]: treesize reduction 24, result has 90.1 percent of original size 218 [2021-10-16 02:51:41,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:41,639 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-16 02:51:42,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:51:42,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-16 02:51:42,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2021-10-16 02:51:42,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827624726] [2021-10-16 02:51:42,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-10-16 02:51:42,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:42,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-10-16 02:51:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2269, Invalid=7433, Unknown=0, NotChecked=0, Total=9702 [2021-10-16 02:51:42,069 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 93 states have internal predecessors, (230), 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) [2021-10-16 02:51:44,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:44,285 INFO L93 Difference]: Finished difference Result 238 states and 261 transitions. [2021-10-16 02:51:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-10-16 02:51:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 93 states have internal predecessors, (230), 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 115 [2021-10-16 02:51:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:44,292 INFO L225 Difference]: With dead ends: 238 [2021-10-16 02:51:44,292 INFO L226 Difference]: Without dead ends: 237 [2021-10-16 02:51:44,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4770 ImplicationChecksByTransitivity, 5002.0ms TimeCoverageRelationStatistics Valid=5558, Invalid=15322, Unknown=0, NotChecked=0, Total=20880 [2021-10-16 02:51:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-10-16 02:51:44,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-10-16 02:51:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.004255319148936) internal successors, (236), 235 states have internal predecessors, (236), 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) [2021-10-16 02:51:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-10-16 02:51:44,324 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 115 [2021-10-16 02:51:44,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:44,325 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-10-16 02:51:44,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 93 states have internal predecessors, (230), 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) [2021-10-16 02:51:44,326 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-10-16 02:51:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-10-16 02:51:44,337 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:44,338 INFO L512 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1] [2021-10-16 02:51:44,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:51:44,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:51:44,551 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:51:44,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:44,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1923709923, now seen corresponding path program 5 times [2021-10-16 02:51:44,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:44,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86375869] [2021-10-16 02:51:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:44,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 4711 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-10-16 02:51:48,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:48,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86375869] [2021-10-16 02:51:48,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86375869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:51:48,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:51:48,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-10-16 02:51:48,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145119842] [2021-10-16 02:51:48,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-10-16 02:51:48,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-10-16 02:51:48,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-10-16 02:51:48,568 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 63 states, 63 states have (on average 2.507936507936508) internal successors, (158), 62 states have internal predecessors, (158), 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) [2021-10-16 02:51:49,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:49,109 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2021-10-16 02:51:49,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-16 02:51:49,110 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.507936507936508) internal successors, (158), 62 states have internal predecessors, (158), 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 235 [2021-10-16 02:51:49,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:49,112 INFO L225 Difference]: With dead ends: 236 [2021-10-16 02:51:49,113 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:51:49,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 30 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 2626.1ms TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-10-16 02:51:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:51:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:51:49,117 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) [2021-10-16 02:51:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:51:49,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2021-10-16 02:51:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:49,118 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:51:49,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.507936507936508) internal successors, (158), 62 states have internal predecessors, (158), 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) [2021-10-16 02:51:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:51:49,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:51:49,122 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:51:49,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:51:49,123 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:51:49,124 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:51:49,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-10-16 02:51:49,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:51:49,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:51:49,688 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-10-16 02:51:49,688 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:51:49,688 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-10-16 02:51:49,689 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-16 02:51:49,689 INFO L857 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2021-10-16 02:51:49,689 INFO L853 garLoopResultBuilder]: At program point L7-2(lines 7 12) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_mlog_~res~0))) (or (and (<= ULTIMATE.start_mlog_~x 2047) .cse0 (<= ULTIMATE.start_mlog_~res~0 20)) (and (<= ULTIMATE.start_mlog_~x 134217727) (<= ULTIMATE.start_mlog_~res~0 4) .cse0) (and (<= ULTIMATE.start_mlog_~x 511) .cse0 (<= ULTIMATE.start_mlog_~res~0 22)) (and (<= ULTIMATE.start_mlog_~res~0 2147483624) .cse0 (<= ULTIMATE.start_mlog_~x 255)) (and (<= ULTIMATE.start_mlog_~x 536870911) .cse0 (<= ULTIMATE.start_mlog_~res~0 2)) (and .cse0 (<= ULTIMATE.start_mlog_~res~0 5) (<= ULTIMATE.start_mlog_~x 67108863)) (and (<= ULTIMATE.start_mlog_~x 127) .cse0 (<= ULTIMATE.start_mlog_~res~0 2147483625)) (and .cse0 (<= ULTIMATE.start_mlog_~x 131071) (<= ULTIMATE.start_mlog_~res~0 14)) (and (<= ULTIMATE.start_mlog_~x 262143) (<= ULTIMATE.start_mlog_~res~0 13) .cse0) (and (<= ULTIMATE.start_mlog_~res~0 12) .cse0 (<= ULTIMATE.start_mlog_~x 524287)) (and .cse0 (<= ULTIMATE.start_mlog_~res~0 1) (<= ULTIMATE.start_mlog_~x 1073741823)) (and (<= ULTIMATE.start_mlog_~res~0 17) .cse0 (<= ULTIMATE.start_mlog_~x 16383)) (and (<= ULTIMATE.start_mlog_~res~0 2147483631) .cse0 (<= ULTIMATE.start_mlog_~x 1)) (and (<= ULTIMATE.start_mlog_~x 2097151) .cse0 (<= ULTIMATE.start_mlog_~res~0 10)) (and (<= ULTIMATE.start_mlog_~x 32767) .cse0 (<= ULTIMATE.start_mlog_~res~0 16)) (and (<= ULTIMATE.start_mlog_~x 63) .cse0 (<= ULTIMATE.start_mlog_~res~0 2147483626)) (and (<= ULTIMATE.start_mlog_~res~0 3) .cse0 (<= ULTIMATE.start_mlog_~x 268435455)) (and (<= ULTIMATE.start_mlog_~res~0 15) .cse0 (<= ULTIMATE.start_mlog_~x 65535)) (and .cse0 (<= ULTIMATE.start_mlog_~x 4194303) (<= ULTIMATE.start_mlog_~res~0 9)) (and .cse0 (<= ULTIMATE.start_mlog_~res~0 0) (<= ULTIMATE.start_mlog_~x 2147483647)) (and (<= ULTIMATE.start_mlog_~res~0 7) .cse0 (<= ULTIMATE.start_mlog_~x 16777215)) (and .cse0 (<= ULTIMATE.start_mlog_~res~0 2147483627) (<= ULTIMATE.start_mlog_~x 31)) (and .cse0 (<= ULTIMATE.start_mlog_~x 3) (<= ULTIMATE.start_mlog_~res~0 2147483630)) (and (<= ULTIMATE.start_mlog_~res~0 11) .cse0 (<= ULTIMATE.start_mlog_~x 1048575)) (and (<= ULTIMATE.start_mlog_~res~0 21) .cse0 (<= ULTIMATE.start_mlog_~x 1023)) (and .cse0 (<= ULTIMATE.start_mlog_~res~0 2147483628) (<= ULTIMATE.start_mlog_~x 15)) (and .cse0 (<= ULTIMATE.start_mlog_~x 8191) (<= ULTIMATE.start_mlog_~res~0 18)) (and (<= ULTIMATE.start_mlog_~x 4095) .cse0 (<= ULTIMATE.start_mlog_~res~0 19)) (and (<= ULTIMATE.start_mlog_~x 33554431) (<= ULTIMATE.start_mlog_~res~0 6) .cse0) (and (<= ULTIMATE.start_mlog_~x 7) .cse0 (<= ULTIMATE.start_mlog_~res~0 2147483629)) (and (<= ULTIMATE.start_mlog_~x 8388607) (<= ULTIMATE.start_mlog_~res~0 8) .cse0))) [2021-10-16 02:51:49,689 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-10-16 02:51:49,689 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-10-16 02:51:49,689 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:51:49,690 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-16 02:51:49,690 INFO L857 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-10-16 02:51:49,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:51:49,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:51:49 BoogieIcfgContainer [2021-10-16 02:51:49,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:51:49,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:51:49,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:51:49,729 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:51:49,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:51:27" (3/4) ... [2021-10-16 02:51:49,734 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:51:49,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-16 02:51:49,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:51:49,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:51:49,783 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:51:49,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:51:49,784 INFO L168 Benchmark]: Toolchain (without parser) took 23026.68 ms. Allocated memory was 100.7 MB in the beginning and 264.2 MB in the end (delta: 163.6 MB). Free memory was 68.7 MB in the beginning and 168.6 MB in the end (delta: -100.0 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:49,784 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:49,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 100.7 MB. Free memory was 68.5 MB in the beginning and 78.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:49,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.97 ms. Allocated memory is still 100.7 MB. Free memory was 78.9 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:49,785 INFO L168 Benchmark]: Boogie Preprocessor took 34.85 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 76.8 MB in the end (delta: 948.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:49,786 INFO L168 Benchmark]: RCFGBuilder took 393.08 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 67.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:49,786 INFO L168 Benchmark]: TraceAbstraction took 22216.37 ms. Allocated memory was 100.7 MB in the beginning and 264.2 MB in the end (delta: 163.6 MB). Free memory was 66.9 MB in the beginning and 170.7 MB in the end (delta: -103.8 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:49,787 INFO L168 Benchmark]: Witness Printer took 54.50 ms. Allocated memory is still 264.2 MB. Free memory was 170.7 MB in the beginning and 168.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:49,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 100.7 MB. Free memory was 68.5 MB in the beginning and 78.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.97 ms. Allocated memory is still 100.7 MB. Free memory was 78.9 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.85 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 76.8 MB in the end (delta: 948.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 393.08 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 67.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22216.37 ms. Allocated memory was 100.7 MB in the beginning and 264.2 MB in the end (delta: 163.6 MB). Free memory was 66.9 MB in the beginning and 170.7 MB in the end (delta: -103.8 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. * Witness Printer took 54.50 ms. Allocated memory is still 264.2 MB. Free memory was 170.7 MB in the beginning and 168.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: 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, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 22114.0ms, OverallIterations: 8, TraceHistogramMax: 47, EmptinessCheckTime: 32.7ms, AutomataDifference: 4068.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 562.7ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 651 SDslu, 642 SDs, 0 SdLazy, 1037 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 849.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 871 GetRequests, 506 SyntacticMatches, 30 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7260 ImplicationChecksByTransitivity, 10614.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=7, InterpolantAutomatonStates: 252, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 82.1ms AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 32 NumberOfFragments, 311 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 38.9ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 144 FormulaSimplificationTreeSizeReductionInter, 515.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 81.5ms SsaConstructionTime, 1019.4ms SatisfiabilityAnalysisTime, 9942.3ms InterpolantComputationTime, 659 NumberOfCodeBlocks, 659 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 848 ConstructedInterpolants, 0 QuantifiedInterpolants, 2502 SizeOfPredicates, 41 NumberOfNonLiveVariables, 479 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 5359/10033 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 4 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((x <= 2047 && 0 <= res) && res <= 20) || ((x <= 134217727 && res <= 4) && 0 <= res)) || ((x <= 511 && 0 <= res) && res <= 22)) || ((res <= 2147483624 && 0 <= res) && x <= 255)) || ((x <= 536870911 && 0 <= res) && res <= 2)) || ((0 <= res && res <= 5) && x <= 67108863)) || ((x <= 127 && 0 <= res) && res <= 2147483625)) || ((0 <= res && x <= 131071) && res <= 14)) || ((x <= 262143 && res <= 13) && 0 <= res)) || ((res <= 12 && 0 <= res) && x <= 524287)) || ((0 <= res && res <= 1) && x <= 1073741823)) || ((res <= 17 && 0 <= res) && x <= 16383)) || ((res <= 2147483631 && 0 <= res) && x <= 1)) || ((x <= 2097151 && 0 <= res) && res <= 10)) || ((x <= 32767 && 0 <= res) && res <= 16)) || ((x <= 63 && 0 <= res) && res <= 2147483626)) || ((res <= 3 && 0 <= res) && x <= 268435455)) || ((res <= 15 && 0 <= res) && x <= 65535)) || ((0 <= res && x <= 4194303) && res <= 9)) || ((0 <= res && res <= 0) && x <= 2147483647)) || ((res <= 7 && 0 <= res) && x <= 16777215)) || ((0 <= res && res <= 2147483627) && x <= 31)) || ((0 <= res && x <= 3) && res <= 2147483630)) || ((res <= 11 && 0 <= res) && x <= 1048575)) || ((res <= 21 && 0 <= res) && x <= 1023)) || ((0 <= res && res <= 2147483628) && x <= 15)) || ((0 <= res && x <= 8191) && res <= 18)) || ((x <= 4095 && 0 <= res) && res <= 19)) || ((x <= 33554431 && res <= 6) && 0 <= res)) || ((x <= 7 && 0 <= res) && res <= 2147483629)) || ((x <= 8388607 && res <= 8) && 0 <= res) RESULT: Ultimate proved your program to be correct! [2021-10-16 02:51:49,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26eb9de7-ddf5-4856-96c3-216c0f98aef5/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...