./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8 --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-4e77c04 [2021-10-13 07:43:14,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:43:14,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:43:14,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:43:14,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:43:14,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:43:14,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:43:14,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:43:14,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:43:14,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:43:14,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:43:14,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:43:14,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:43:14,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:43:14,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:43:14,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:43:14,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:43:14,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:43:14,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:43:14,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:43:14,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:43:14,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:43:14,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:43:14,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:43:14,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:43:14,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:43:14,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:43:14,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:43:14,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:43:14,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:43:14,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:43:14,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:43:14,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:43:14,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:43:14,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:43:14,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:43:14,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:43:14,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:43:14,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:43:14,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:43:14,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:43:14,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-13 07:43:14,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:43:14,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:43:14,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:43:14,904 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:43:14,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:43:14,904 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:43:14,905 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:43:14,905 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:43:14,905 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:43:14,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:43:14,907 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:43:14,907 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:43:14,908 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:43:14,908 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:43:14,908 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:43:14,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:43:14,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:43:14,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:43:14,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:43:14,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:43:14,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:43:14,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:43:14,911 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 07:43:14,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:43:14,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:43:14,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:43:14,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:43:14,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:43:14,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:43:14,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:43:14,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:43:14,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:43:14,916 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:43:14,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:43:14,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:43:14,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:43:14,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:43:14,917 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_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28857c86a3c83fc75b1b8cf8125f1c52a370911 [2021-10-13 07:43:15,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:43:15,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:43:15,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:43:15,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:43:15,286 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:43:15,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-10-13 07:43:15,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/data/a35498748/34beccb85d2b43a69517c28051ac65bb/FLAG660548c5b [2021-10-13 07:43:15,839 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:43:15,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-10-13 07:43:15,845 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/data/a35498748/34beccb85d2b43a69517c28051ac65bb/FLAG660548c5b [2021-10-13 07:43:16,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/data/a35498748/34beccb85d2b43a69517c28051ac65bb [2021-10-13 07:43:16,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:43:16,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:43:16,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:43:16,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:43:16,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:43:16,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f88a2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16, skipping insertion in model container [2021-10-13 07:43:16,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:43:16,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:43:16,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:43:16,443 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:43:16,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:43:16,466 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:43:16,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16 WrapperNode [2021-10-13 07:43:16,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:43:16,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:43:16,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:43:16,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:43:16,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:43:16,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:43:16,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:43:16,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:43:16,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:43:16,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:43:16,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:43:16,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:43:16,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (1/1) ... [2021-10-13 07:43:16,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:43:16,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:43:16,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:43:16,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:43:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:43:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:43:16,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:43:16,819 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:43:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:43:16 BoogieIcfgContainer [2021-10-13 07:43:16,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:43:16,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:43:16,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:43:16,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:43:16,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:43:16" (1/3) ... [2021-10-13 07:43:16,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0feb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:43:16, skipping insertion in model container [2021-10-13 07:43:16,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:16" (2/3) ... [2021-10-13 07:43:16,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0feb9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:43:16, skipping insertion in model container [2021-10-13 07:43:16,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:43:16" (3/3) ... [2021-10-13 07:43:16,841 INFO L111 eAbstractionObserver]: Analyzing ICFG java_LogBuiltIn.c [2021-10-13 07:43:16,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:43:16,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 07:43:16,902 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:43:16,916 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 [2021-10-13 07:43:16,918 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 07:43:16,936 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) [2021-10-13 07:43:16,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 07:43:16,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:16,944 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 07:43:16,946 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)] === [2021-10-13 07:43:16,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:16,953 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-13 07:43:16,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:16,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322070509] [2021-10-13 07:43:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:16,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:17,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:17,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:17,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322070509] [2021-10-13 07:43:17,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322070509] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:43:17,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:43:17,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:43:17,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671828770] [2021-10-13 07:43:17,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:43:17,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:17,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:43:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:43:17,194 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) [2021-10-13 07:43:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:17,260 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-10-13 07:43:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:43:17,262 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 [2021-10-13 07:43:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:17,269 INFO L225 Difference]: With dead ends: 11 [2021-10-13 07:43:17,269 INFO L226 Difference]: Without dead ends: 8 [2021-10-13 07:43:17,272 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:43:17,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-13 07:43:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-13 07:43:17,298 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) [2021-10-13 07:43:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-13 07:43:17,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2021-10-13 07:43:17,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:17,300 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-13 07:43:17,301 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) [2021-10-13 07:43:17,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-13 07:43:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:43:17,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:17,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:43:17,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:43:17,302 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)] === [2021-10-13 07:43:17,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:17,303 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-10-13 07:43:17,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:17,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853797445] [2021-10-13 07:43:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:17,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:17,341 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:17,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853797445] [2021-10-13 07:43:17,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853797445] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:43:17,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:43:17,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:43:17,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717795411] [2021-10-13 07:43:17,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:43:17,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:17,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:43:17,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:43:17,345 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) [2021-10-13 07:43:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:17,388 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-10-13 07:43:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:43:17,389 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 [2021-10-13 07:43:17,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:17,390 INFO L225 Difference]: With dead ends: 15 [2021-10-13 07:43:17,390 INFO L226 Difference]: Without dead ends: 14 [2021-10-13 07:43:17,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:43:17,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-13 07:43:17,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-10-13 07:43:17,393 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) [2021-10-13 07:43:17,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-13 07:43:17,394 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2021-10-13 07:43:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:17,394 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-13 07:43:17,394 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) [2021-10-13 07:43:17,395 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-13 07:43:17,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 07:43:17,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:17,395 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 07:43:17,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:43:17,396 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)] === [2021-10-13 07:43:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:17,397 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-10-13 07:43:17,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:17,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759573175] [2021-10-13 07:43:17,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:17,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:17,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:17,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759573175] [2021-10-13 07:43:17,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759573175] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:43:17,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:43:17,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:43:17,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729519900] [2021-10-13 07:43:17,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:43:17,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:17,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:43:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:43:17,470 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) [2021-10-13 07:43:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:17,499 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-10-13 07:43:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:43:17,501 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 [2021-10-13 07:43:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:17,502 INFO L225 Difference]: With dead ends: 12 [2021-10-13 07:43:17,502 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:43:17,502 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:43:17,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:43:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-13 07:43:17,506 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) [2021-10-13 07:43:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-13 07:43:17,507 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2021-10-13 07:43:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:17,507 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-13 07:43:17,508 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) [2021-10-13 07:43:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-13 07:43:17,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:43:17,509 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:17,510 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2021-10-13 07:43:17,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:43:17,510 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)] === [2021-10-13 07:43:17,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:17,511 INFO L82 PathProgramCache]: Analyzing trace with hash 860863857, now seen corresponding path program 1 times [2021-10-13 07:43:17,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:17,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140222127] [2021-10-13 07:43:17,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:17,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:17,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:17,586 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:17,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140222127] [2021-10-13 07:43:17,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140222127] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:43:17,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467953780] [2021-10-13 07:43:17,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:17,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:17,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:43:17,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:43:17,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:43:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:17,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:43:17,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:43:17,764 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:17,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:43:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:17,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467953780] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:43:17,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344316209] [2021-10-13 07:43:17,926 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:43:17,926 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:43:17,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:43:17,937 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:43:17,937 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:43:17,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-13 07:43:18,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-13 07:43:18,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-13 07:43:18,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,392 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:18,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:18,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,419 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-13 07:43:18,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-13 07:43:18,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-13 07:43:18,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-13 07:43:18,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,526 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-13 07:43:18,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-13 07:43:18,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:18,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:18,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-13 07:43:18,573 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:18,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:18,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:18,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,704 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,770 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,804 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,818 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:43:18,849 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-13 07:43:18,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-13 07:43:18,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-13 07:43:18,876 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,884 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-13 07:43:18,906 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-13 07:43:18,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-13 07:43:18,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-13 07:43:18,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-13 07:43:18,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-13 07:43:18,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,966 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-13 07:43:18,972 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:18,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:18,985 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-13 07:43:18,998 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-10-13 07:43:19,007 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-10-13 07:43:19,017 INFO L185 QuantifierPusher]: treesize reduction 24, result has 90.1 percent of original size 218 [2021-10-13 07:43:19,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:19,115 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-13 07:43:19,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:43:19,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-13 07:43:19,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-10-13 07:43:19,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389211653] [2021-10-13 07:43:19,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:43:19,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:19,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:43:19,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-10-13 07:43:19,435 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) [2021-10-13 07:43:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:19,516 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-10-13 07:43:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:43:19,516 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 [2021-10-13 07:43:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:19,517 INFO L225 Difference]: With dead ends: 28 [2021-10-13 07:43:19,517 INFO L226 Difference]: Without dead ends: 27 [2021-10-13 07:43:19,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 419.5ms TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:43:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-13 07:43:19,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-13 07:43:19,522 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) [2021-10-13 07:43:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-10-13 07:43:19,523 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 10 [2021-10-13 07:43:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:19,523 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-10-13 07:43:19,523 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) [2021-10-13 07:43:19,523 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-10-13 07:43:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:43:19,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:19,524 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1] [2021-10-13 07:43:19,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:19,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:19,740 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)] === [2021-10-13 07:43:19,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:19,741 INFO L82 PathProgramCache]: Analyzing trace with hash -333652957, now seen corresponding path program 2 times [2021-10-13 07:43:19,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:19,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948576496] [2021-10-13 07:43:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:19,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:19,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:19,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948576496] [2021-10-13 07:43:19,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948576496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:43:19,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311864047] [2021-10-13 07:43:19,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 07:43:19,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:19,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:43:19,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:43:19,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 07:43:20,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-13 07:43:20,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:43:20,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:43:20,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:43:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:20,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:43:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:20,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311864047] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:43:20,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168363128] [2021-10-13 07:43:20,468 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:43:20,469 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:43:20,469 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:43:20,469 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:43:20,469 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:43:20,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-13 07:43:20,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-13 07:43:20,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-13 07:43:20,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,587 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:20,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:20,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,600 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,612 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,614 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,628 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,632 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-13 07:43:20,635 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-13 07:43:20,636 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-13 07:43:20,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-13 07:43:20,641 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:43:20,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:43:20,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:20,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:20,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-13 07:43:20,665 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:20,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:20,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:20,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,739 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,772 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,785 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,797 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,802 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-13 07:43:20,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-10-13 07:43:20,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-10-13 07:43:20,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-10-13 07:43:20,814 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-10-13 07:43:20,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-13 07:43:20,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-13 07:43:20,843 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-10-13 07:43:20,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-10-13 07:43:20,849 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-13 07:43:20,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-10-13 07:43:20,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:43:20,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-10-13 07:43:20,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-10-13 07:43:20,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-10-13 07:43:20,872 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,887 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-13 07:43:20,951 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:43:20,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-13 07:43:20,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-10-13 07:43:20,974 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,981 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:20,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-10-13 07:43:20,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:20,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:21,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-13 07:43:21,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-13 07:43:21,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-13 07:43:21,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-13 07:43:21,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-10-13 07:43:21,024 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:21,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:21,031 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:21,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:21,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-13 07:43:21,043 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:21,045 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:21,055 INFO L185 QuantifierPusher]: treesize reduction 11, result has 89.6 percent of original size 95 [2021-10-13 07:43:21,063 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 214 [2021-10-13 07:43:21,070 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 214 [2021-10-13 07:43:21,079 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 218 [2021-10-13 07:43:21,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:21,166 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-13 07:43:21,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:43:21,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-13 07:43:21,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2021-10-13 07:43:21,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104889449] [2021-10-13 07:43:21,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 07:43:21,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:21,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 07:43:21,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-10-13 07:43:21,533 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) [2021-10-13 07:43:21,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:21,780 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2021-10-13 07:43:21,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 07:43:21,781 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 [2021-10-13 07:43:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:21,782 INFO L225 Difference]: With dead ends: 58 [2021-10-13 07:43:21,782 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 07:43:21,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 733.9ms TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 07:43:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 07:43:21,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-10-13 07:43:21,791 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) [2021-10-13 07:43:21,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-10-13 07:43:21,792 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 25 [2021-10-13 07:43:21,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:21,793 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-10-13 07:43:21,793 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) [2021-10-13 07:43:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-10-13 07:43:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 07:43:21,796 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:21,796 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1] [2021-10-13 07:43:21,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:22,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-13 07:43:22,025 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)] === [2021-10-13 07:43:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1266934173, now seen corresponding path program 3 times [2021-10-13 07:43:22,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:22,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880303456] [2021-10-13 07:43:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:22,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:22,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:22,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880303456] [2021-10-13 07:43:22,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880303456] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:43:22,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490882945] [2021-10-13 07:43:22,483 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 07:43:22,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:22,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:43:22,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:43:22,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 07:43:22,587 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 07:43:22,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:43:22,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 07:43:22,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:43:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:22,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:43:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:23,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490882945] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:43:23,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2085857904] [2021-10-13 07:43:23,584 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:43:23,584 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:43:23,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:43:23,585 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:43:23,585 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:43:23,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,599 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-13 07:43:23,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-13 07:43:23,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-13 07:43:23,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,686 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:23,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:23,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,696 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,710 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,715 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,719 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-10-13 07:43:23,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-13 07:43:23,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-10-13 07:43:23,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-13 07:43:23,725 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-10-13 07:43:23,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-10-13 07:43:23,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,739 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,747 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,752 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-10-13 07:43:23,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-13 07:43:23,759 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-13 07:43:23,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-13 07:43:23,763 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,768 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-13 07:43:23,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-13 07:43:23,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:43:23,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:43:23,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:23,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-13 07:43:23,795 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:23,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:23,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,837 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,892 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-10-13 07:43:23,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-10-13 07:43:23,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-10-13 07:43:23,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-10-13 07:43:23,911 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-10-13 07:43:23,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-10-13 07:43:23,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-10-13 07:43:23,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-10-13 07:43:23,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:23,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:23,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-10-13 07:43:23,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-13 07:43:23,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-13 07:43:23,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-10-13 07:43:23,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:23,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:24,025 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-13 07:43:24,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:43:24,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-13 07:43:24,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2021-10-13 07:43:24,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081742400] [2021-10-13 07:43:24,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-13 07:43:24,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:24,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-13 07:43:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1985, Unknown=0, NotChecked=0, Total=2550 [2021-10-13 07:43:24,366 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) [2021-10-13 07:43:24,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:24,939 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2021-10-13 07:43:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-13 07:43:24,941 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 [2021-10-13 07:43:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:24,942 INFO L225 Difference]: With dead ends: 118 [2021-10-13 07:43:24,943 INFO L226 Difference]: Without dead ends: 117 [2021-10-13 07:43:24,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 1507.5ms TimeCoverageRelationStatistics Valid=1346, Invalid=3910, Unknown=0, NotChecked=0, Total=5256 [2021-10-13 07:43:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-13 07:43:24,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-10-13 07:43:24,954 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) [2021-10-13 07:43:24,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-10-13 07:43:24,956 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 55 [2021-10-13 07:43:24,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:24,956 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-10-13 07:43:24,957 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) [2021-10-13 07:43:24,957 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-10-13 07:43:24,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-10-13 07:43:24,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:24,961 INFO L512 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1] [2021-10-13 07:43:24,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:25,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:25,188 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)] === [2021-10-13 07:43:25,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:25,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1393971939, now seen corresponding path program 4 times [2021-10-13 07:43:25,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:25,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291564452] [2021-10-13 07:43:25,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:25,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:26,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:26,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291564452] [2021-10-13 07:43:26,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291564452] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:43:26,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221282295] [2021-10-13 07:43:26,161 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 07:43:26,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:26,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:43:26,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:43:26,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 07:43:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:26,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 07:43:26,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:43:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:26,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:43:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:43:28,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221282295] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:43:28,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [300962751] [2021-10-13 07:43:28,699 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:43:28,699 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:43:28,699 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:43:28,699 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:43:28,699 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:43:28,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-10-13 07:43:28,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-13 07:43:28,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-10-13 07:43:28,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,808 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:28,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:28,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,816 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,824 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,839 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,841 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-13 07:43:28,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-10-13 07:43:28,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-10-13 07:43:28,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-10-13 07:43:28,847 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,851 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-13 07:43:28,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-13 07:43:28,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:28,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:43:28,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-10-13 07:43:28,867 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-10-13 07:43:28,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:43:28,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:28,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,904 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,922 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,928 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-13 07:43:28,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-10-13 07:43:28,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-10-13 07:43:28,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-10-13 07:43:28,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-10-13 07:43:28,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-10-13 07:43:28,962 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,967 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,976 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-13 07:43:28,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-13 07:43:28,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:28,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-13 07:43:28,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-13 07:43:28,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-10-13 07:43:28,996 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:28,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,003 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-13 07:43:29,005 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-13 07:43:29,007 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-10-13 07:43:29,012 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,029 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,037 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,042 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,046 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:43:29,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-10-13 07:43:29,051 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-13 07:43:29,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-10-13 07:43:29,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-10-13 07:43:29,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-13 07:43:29,058 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,078 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:43:29,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-13 07:43:29,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-13 07:43:29,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-13 07:43:29,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-10-13 07:43:29,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:43:29,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:43:29,109 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-13 07:43:29,112 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-13 07:43:29,136 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-10-13 07:43:29,143 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-10-13 07:43:29,152 INFO L185 QuantifierPusher]: treesize reduction 24, result has 90.1 percent of original size 218 [2021-10-13 07:43:29,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:29,225 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-13 07:43:29,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:43:29,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-13 07:43:29,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2021-10-13 07:43:29,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272102921] [2021-10-13 07:43:29,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-10-13 07:43:29,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:29,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-10-13 07:43:29,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2269, Invalid=7433, Unknown=0, NotChecked=0, Total=9702 [2021-10-13 07:43:29,622 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) [2021-10-13 07:43:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:31,490 INFO L93 Difference]: Finished difference Result 238 states and 261 transitions. [2021-10-13 07:43:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-10-13 07:43:31,491 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 [2021-10-13 07:43:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:31,496 INFO L225 Difference]: With dead ends: 238 [2021-10-13 07:43:31,497 INFO L226 Difference]: Without dead ends: 237 [2021-10-13 07:43:31,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4770 ImplicationChecksByTransitivity, 4093.8ms TimeCoverageRelationStatistics Valid=5558, Invalid=15322, Unknown=0, NotChecked=0, Total=20880 [2021-10-13 07:43:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-10-13 07:43:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-10-13 07:43:31,522 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) [2021-10-13 07:43:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-10-13 07:43:31,525 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 115 [2021-10-13 07:43:31,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:31,526 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-10-13 07:43:31,527 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) [2021-10-13 07:43:31,527 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-10-13 07:43:31,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-10-13 07:43:31,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:43:31,535 INFO L512 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1] [2021-10-13 07:43:31,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:43:31,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:43:31,760 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)] === [2021-10-13 07:43:31,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:43:31,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1923709923, now seen corresponding path program 5 times [2021-10-13 07:43:31,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:43:31,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457234628] [2021-10-13 07:43:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:43:31,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:43:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:43:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 4711 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-10-13 07:43:35,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:43:35,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457234628] [2021-10-13 07:43:35,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457234628] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:43:35,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:43:35,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-10-13 07:43:35,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270274456] [2021-10-13 07:43:35,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-10-13 07:43:35,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:43:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-10-13 07:43:35,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-10-13 07:43:35,820 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) [2021-10-13 07:43:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:43:36,334 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2021-10-13 07:43:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-13 07:43:36,335 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 [2021-10-13 07:43:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:43:36,337 INFO L225 Difference]: With dead ends: 236 [2021-10-13 07:43:36,338 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:43:36,341 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 30 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 2648.1ms TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-10-13 07:43:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:43:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:43:36,342 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) [2021-10-13 07:43:36,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:43:36,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2021-10-13 07:43:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:43:36,343 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:43:36,343 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) [2021-10-13 07:43:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:43:36,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:43:36,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 07:43:36,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 07:43:36,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 07:43:36,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 07:43:36,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-10-13 07:43:36,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:43:36,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:43:36,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-10-13 07:43:36,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:43:36,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-10-13 07:43:36,812 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-13 07:43:36,812 INFO L857 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2021-10-13 07:43:36,813 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))) [2021-10-13 07:43:36,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-10-13 07:43:36,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-10-13 07:43:36,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:43:36,814 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-13 07:43:36,814 INFO L857 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-10-13 07:43:36,818 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:43:36,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:43:36 BoogieIcfgContainer [2021-10-13 07:43:36,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:43:36,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:43:36,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:43:36,842 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:43:36,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:43:16" (3/4) ... [2021-10-13 07:43:36,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:43:36,853 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 07:43:36,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:43:36,854 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:43:36,886 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:43:36,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:43:36,890 INFO L168 Benchmark]: Toolchain (without parser) took 20654.47 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 60.8 MB in the beginning and 83.7 MB in the end (delta: -22.8 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:43:36,891 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:43:36,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.55 ms. Allocated memory is still 102.8 MB. Free memory was 60.6 MB in the beginning and 79.0 MB in the end (delta: -18.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:43:36,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.64 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:43:36,892 INFO L168 Benchmark]: Boogie Preprocessor took 17.89 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 77.0 MB in the end (delta: 643.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:43:36,895 INFO L168 Benchmark]: RCFGBuilder took 304.16 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 67.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:43:36,901 INFO L168 Benchmark]: TraceAbstraction took 20018.23 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 66.7 MB in the beginning and 85.8 MB in the end (delta: -19.1 MB). Peak memory consumption was 99.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:43:36,901 INFO L168 Benchmark]: Witness Printer took 47.41 ms. Allocated memory is still 218.1 MB. Free memory was 85.8 MB in the beginning and 83.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:43:36,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 102.8 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.55 ms. Allocated memory is still 102.8 MB. Free memory was 60.6 MB in the beginning and 79.0 MB in the end (delta: -18.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.64 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 77.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.89 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 77.0 MB in the end (delta: 643.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.16 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 67.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20018.23 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 66.7 MB in the beginning and 85.8 MB in the end (delta: -19.1 MB). Peak memory consumption was 99.2 MB. Max. memory is 16.1 GB. * Witness Printer took 47.41 ms. Allocated memory is still 218.1 MB. Free memory was 85.8 MB in the beginning and 83.7 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: 19917.7ms, OverallIterations: 8, TraceHistogramMax: 47, EmptinessCheckTime: 28.5ms, AutomataDifference: 3512.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 459.9ms, InitialAbstractionConstructionTime: 12.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 651 SDslu, 642 SDs, 0 SdLazy, 1037 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 768.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 871 GetRequests, 506 SyntacticMatches, 30 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7260 ImplicationChecksByTransitivity, 9478.7ms 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: 67.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 32 NumberOfFragments, 311 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 36.4ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 144 FormulaSimplificationTreeSizeReductionInter, 416.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 53.6ms SsaConstructionTime, 916.6ms SatisfiabilityAnalysisTime, 9215.0ms 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! [2021-10-13 07:43:36,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9575dc-3c86-40ed-bb31-faca5b0d42aa/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...