./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH --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 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:10:57,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:10:57,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:10:58,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:10:58,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:10:58,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:10:58,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:10:58,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:10:58,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:10:58,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:10:58,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:10:58,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:10:58,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:10:58,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:10:58,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:10:58,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:10:58,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:10:58,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:10:58,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:10:58,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:10:58,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:10:58,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:10:58,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:10:58,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:10:58,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:10:58,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:10:58,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:10:58,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:10:58,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:10:58,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:10:58,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:10:58,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:10:58,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:10:58,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:10:58,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:10:58,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:10:58,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:10:58,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:10:58,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:10:58,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:10:58,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:10:58,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-03 04:10:58,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:10:58,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:10:58,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:10:58,142 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:10:58,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:10:58,143 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:10:58,143 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:10:58,143 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:10:58,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:10:58,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:10:58,144 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:10:58,145 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:10:58,145 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:10:58,145 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:10:58,146 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:10:58,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:10:58,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:10:58,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:10:58,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:10:58,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:10:58,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:10:58,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:10:58,148 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-03 04:10:58,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:10:58,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:10:58,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:10:58,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:10:58,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:10:58,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:58,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:10:58,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:10:58,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:10:58,151 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:10:58,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:10:58,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:10:58,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:10:58,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:10:58,152 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_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f [2021-11-03 04:10:58,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:10:58,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:10:58,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:10:58,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:10:58,416 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:10:58,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-11-03 04:10:58,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/data/bc6472dcb/4a0e2d1f39fd4327ba06c3619c64b086/FLAGddef3b602 [2021-11-03 04:10:58,978 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:10:58,979 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-11-03 04:10:58,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/data/bc6472dcb/4a0e2d1f39fd4327ba06c3619c64b086/FLAGddef3b602 [2021-11-03 04:10:59,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/data/bc6472dcb/4a0e2d1f39fd4327ba06c3619c64b086 [2021-11-03 04:10:59,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:10:59,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:10:59,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:59,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:10:59,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:10:59,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c59c8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59, skipping insertion in model container [2021-11-03 04:10:59,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:10:59,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:10:59,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:59,515 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:10:59,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:59,547 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:10:59,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59 WrapperNode [2021-11-03 04:10:59,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:59,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:10:59,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:10:59,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:10:59,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:10:59,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:10:59,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:10:59,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:10:59,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:10:59,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:10:59,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:10:59,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:10:59,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (1/1) ... [2021-11-03 04:10:59,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:59,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:10:59,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:10:59,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:10:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:10:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:10:59,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:10:59,916 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:10:59,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:59 BoogieIcfgContainer [2021-11-03 04:10:59,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:10:59,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:10:59,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:10:59,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:10:59,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:10:59" (1/3) ... [2021-11-03 04:10:59,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3658263e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:10:59, skipping insertion in model container [2021-11-03 04:10:59,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:59" (2/3) ... [2021-11-03 04:10:59,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3658263e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:10:59, skipping insertion in model container [2021-11-03 04:10:59,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:59" (3/3) ... [2021-11-03 04:10:59,928 INFO L111 eAbstractionObserver]: Analyzing ICFG java_LogBuiltIn.c [2021-11-03 04:10:59,934 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:10:59,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 04:10:59,991 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:10:59,999 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:10:59,999 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 04:11:00,024 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) [2021-11-03 04:11:00,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:11:00,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:00,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:11:00,031 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)] === [2021-11-03 04:11:00,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:00,036 INFO L85 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-11-03 04:11:00,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:00,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338033833] [2021-11-03 04:11:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:00,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:00,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:00,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338033833] [2021-11-03 04:11:00,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338033833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:00,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:00,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:11:00,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457466326] [2021-11-03 04:11:00,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:11:00,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:11:00,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:00,265 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) [2021-11-03 04:11:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:00,295 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-11-03 04:11:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:11:00,297 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 [2021-11-03 04:11:00,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:00,305 INFO L225 Difference]: With dead ends: 11 [2021-11-03 04:11:00,306 INFO L226 Difference]: Without dead ends: 8 [2021-11-03 04:11:00,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:00,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-03 04:11:00,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-03 04:11:00,341 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) [2021-11-03 04:11:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-03 04:11:00,343 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2021-11-03 04:11:00,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:00,345 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-03 04:11:00,346 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) [2021-11-03 04:11:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-03 04:11:00,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:11:00,347 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:00,347 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:11:00,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:11:00,349 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)] === [2021-11-03 04:11:00,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-11-03 04:11:00,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:00,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624145102] [2021-11-03 04:11:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:00,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:00,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:00,437 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:00,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624145102] [2021-11-03 04:11:00,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624145102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:00,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:00,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:11:00,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385004265] [2021-11-03 04:11:00,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:11:00,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:11:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:00,450 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) [2021-11-03 04:11:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:00,498 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-03 04:11:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:11:00,499 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 [2021-11-03 04:11:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:00,500 INFO L225 Difference]: With dead ends: 15 [2021-11-03 04:11:00,500 INFO L226 Difference]: Without dead ends: 14 [2021-11-03 04:11:00,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:11:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-03 04:11:00,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-11-03 04:11:00,503 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) [2021-11-03 04:11:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-03 04:11:00,504 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2021-11-03 04:11:00,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:00,505 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-11-03 04:11:00,505 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) [2021-11-03 04:11:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-03 04:11:00,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:11:00,506 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:00,506 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:11:00,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:11:00,507 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)] === [2021-11-03 04:11:00,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-11-03 04:11:00,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:00,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430176195] [2021-11-03 04:11:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:00,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:00,540 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:00,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430176195] [2021-11-03 04:11:00,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430176195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:00,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:00,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:11:00,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854267329] [2021-11-03 04:11:00,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:11:00,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:00,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:11:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:00,544 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) [2021-11-03 04:11:00,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:00,561 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-11-03 04:11:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:11:00,561 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 [2021-11-03 04:11:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:00,562 INFO L225 Difference]: With dead ends: 12 [2021-11-03 04:11:00,562 INFO L226 Difference]: Without dead ends: 11 [2021-11-03 04:11:00,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:11:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-03 04:11:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-03 04:11:00,565 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) [2021-11-03 04:11:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-11-03 04:11:00,566 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2021-11-03 04:11:00,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:00,567 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-11-03 04:11:00,567 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) [2021-11-03 04:11:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-11-03 04:11:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 04:11:00,568 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:00,568 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2021-11-03 04:11:00,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:11:00,569 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)] === [2021-11-03 04:11:00,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:00,570 INFO L85 PathProgramCache]: Analyzing trace with hash 860863857, now seen corresponding path program 1 times [2021-11-03 04:11:00,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:00,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240424377] [2021-11-03 04:11:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:00,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:00,628 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:00,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240424377] [2021-11-03 04:11:00,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240424377] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:11:00,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097418195] [2021-11-03 04:11:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:00,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:11:00,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:11:00,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:11:00,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 04:11:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:00,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:11:00,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:00,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:00,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:00,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097418195] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:11:00,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1027488316] [2021-11-03 04:11:00,909 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:11:00,909 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:11:00,915 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:11:00,926 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:11:00,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:11:00,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:00,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-03 04:11:00,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:00,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-03 04:11:01,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-11-03 04:11:01,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,356 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:01,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:01,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,389 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,444 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,464 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 04:11:01,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:11:01,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-11-03 04:11:01,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-03 04:11:01,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-03 04:11:01,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-03 04:11:01,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:01,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:01,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:11:01,504 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:01,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:01,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,560 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,571 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,585 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,606 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,631 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,647 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,656 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-03 04:11:01,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-03 04:11:01,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-11-03 04:11:01,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-11-03 04:11:01,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,734 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-03 04:11:01,754 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-11-03 04:11:01,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-03 04:11:01,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-03 04:11:01,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-03 04:11:01,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-03 04:11:01,792 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,807 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,824 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-11-03 04:11:01,833 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:01,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:01,847 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-11-03 04:11:01,860 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-11-03 04:11:01,873 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-11-03 04:11:01,889 INFO L185 QuantifierPusher]: treesize reduction 24, result has 90.1 percent of original size 218 [2021-11-03 04:11:01,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:01,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:02,010 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:11:02,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:11:02,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:11:02,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-03 04:11:02,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776544026] [2021-11-03 04:11:02,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:11:02,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:02,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:11:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:11:02,330 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) [2021-11-03 04:11:02,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:02,432 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-11-03 04:11:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:11:02,433 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 [2021-11-03 04:11:02,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:02,434 INFO L225 Difference]: With dead ends: 28 [2021-11-03 04:11:02,434 INFO L226 Difference]: Without dead ends: 27 [2021-11-03 04:11:02,435 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:11:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-03 04:11:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-11-03 04:11:02,439 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) [2021-11-03 04:11:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-11-03 04:11:02,440 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 10 [2021-11-03 04:11:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:02,441 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-11-03 04:11:02,441 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) [2021-11-03 04:11:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-11-03 04:11:02,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:11:02,442 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:02,443 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1] [2021-11-03 04:11:02,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:02,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:11:02,669 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)] === [2021-11-03 04:11:02,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash -333652957, now seen corresponding path program 2 times [2021-11-03 04:11:02,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:02,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781262491] [2021-11-03 04:11:02,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:02,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:02,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:02,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781262491] [2021-11-03 04:11:02,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781262491] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:11:02,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91174622] [2021-11-03 04:11:02,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:11:02,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:11:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:11:02,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:11:02,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 04:11:02,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-03 04:11:02,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:11:02,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:11:02,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:03,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:03,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91174622] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:11:03,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1027112209] [2021-11-03 04:11:03,243 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:11:03,243 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:11:03,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:11:03,244 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:11:03,244 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:11:03,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-03 04:11:03,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-03 04:11:03,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-11-03 04:11:03,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,339 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:03,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:03,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,349 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,361 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 04:11:03,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:11:03,391 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:11:03,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-03 04:11:03,395 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 04:11:03,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 04:11:03,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:03,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:03,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:11:03,416 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:03,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:03,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,459 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,504 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:11:03,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-03 04:11:03,507 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-03 04:11:03,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-03 04:11:03,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-03 04:11:03,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,527 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,530 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-03 04:11:03,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 04:11:03,533 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-03 04:11:03,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 04:11:03,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 04:11:03,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-03 04:11:03,545 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-03 04:11:03,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-11-03 04:11:03,550 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-03 04:11:03,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-11-03 04:11:03,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,585 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,595 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,603 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,609 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-03 04:11:03,619 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-03 04:11:03,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-11-03 04:11:03,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-11-03 04:11:03,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,643 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-11-03 04:11:03,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-03 04:11:03,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:11:03,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:11:03,673 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:11:03,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-11-03 04:11:03,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,687 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-03 04:11:03,696 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:03,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:03,709 INFO L185 QuantifierPusher]: treesize reduction 11, result has 89.6 percent of original size 95 [2021-11-03 04:11:03,716 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 214 [2021-11-03 04:11:03,721 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 214 [2021-11-03 04:11:03,729 INFO L185 QuantifierPusher]: treesize reduction 9, result has 96.0 percent of original size 218 [2021-11-03 04:11:03,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:03,792 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:11:04,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:11:04,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:11:04,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2021-11-03 04:11:04,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391227109] [2021-11-03 04:11:04,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-03 04:11:04,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:04,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-03 04:11:04,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-11-03 04:11:04,092 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) [2021-11-03 04:11:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:04,294 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2021-11-03 04:11:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-03 04:11:04,294 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 [2021-11-03 04:11:04,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:04,296 INFO L225 Difference]: With dead ends: 58 [2021-11-03 04:11:04,296 INFO L226 Difference]: Without dead ends: 57 [2021-11-03 04:11:04,297 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2021-11-03 04:11:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-03 04:11:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-11-03 04:11:04,303 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) [2021-11-03 04:11:04,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-11-03 04:11:04,304 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 25 [2021-11-03 04:11:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:04,305 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-11-03 04:11:04,305 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) [2021-11-03 04:11:04,305 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-11-03 04:11:04,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 04:11:04,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:04,307 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1] [2021-11-03 04:11:04,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:04,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-03 04:11:04,529 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)] === [2021-11-03 04:11:04,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:04,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1266934173, now seen corresponding path program 3 times [2021-11-03 04:11:04,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:04,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566799509] [2021-11-03 04:11:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:04,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:04,862 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:04,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566799509] [2021-11-03 04:11:04,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566799509] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:11:04,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421505155] [2021-11-03 04:11:04,863 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 04:11:04,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:11:04,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:11:04,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:11:04,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 04:11:04,941 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 04:11:04,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:11:04,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-03 04:11:04,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:05,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:05,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421505155] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:11:05,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1957895310] [2021-11-03 04:11:05,761 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:11:05,762 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:11:05,762 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:11:05,762 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:11:05,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:11:05,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-03 04:11:05,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-03 04:11:05,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-11-03 04:11:05,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,867 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:05,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:05,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,888 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,892 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,896 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,899 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-03 04:11:05,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 04:11:05,901 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-03 04:11:05,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:11:05,904 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-03 04:11:05,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-03 04:11:05,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,928 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-03 04:11:05,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-03 04:11:05,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:11:05,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-03 04:11:05,938 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:05,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-11-03 04:11:05,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-11-03 04:11:05,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 04:11:05,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 04:11:05,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:05,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:11:05,964 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:05,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:05,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:05,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:05,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,010 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,017 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,027 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,032 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-03 04:11:06,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-03 04:11:06,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-03 04:11:06,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 310 [2021-11-03 04:11:06,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,074 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-03 04:11:06,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-03 04:11:06,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-03 04:11:06,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-03 04:11:06,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:06,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:06,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 04:11:06,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-11-03 04:11:06,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-11-03 04:11:06,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-11-03 04:11:06,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:06,183 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:11:06,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:11:06,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:11:06,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2021-11-03 04:11:06,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144788874] [2021-11-03 04:11:06,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-03 04:11:06,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-03 04:11:06,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1985, Unknown=0, NotChecked=0, Total=2550 [2021-11-03 04:11:06,494 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) [2021-11-03 04:11:07,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:07,056 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2021-11-03 04:11:07,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-03 04:11:07,057 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 [2021-11-03 04:11:07,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:07,059 INFO L225 Difference]: With dead ends: 118 [2021-11-03 04:11:07,059 INFO L226 Difference]: Without dead ends: 117 [2021-11-03 04:11:07,062 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1346, Invalid=3910, Unknown=0, NotChecked=0, Total=5256 [2021-11-03 04:11:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-03 04:11:07,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-11-03 04:11:07,071 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) [2021-11-03 04:11:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-11-03 04:11:07,073 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 55 [2021-11-03 04:11:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:07,073 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-11-03 04:11:07,074 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) [2021-11-03 04:11:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-11-03 04:11:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-03 04:11:07,078 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:07,078 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1] [2021-11-03 04:11:07,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:07,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-11-03 04:11:07,293 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)] === [2021-11-03 04:11:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:07,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1393971939, now seen corresponding path program 4 times [2021-11-03 04:11:07,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:07,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200939198] [2021-11-03 04:11:07,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:07,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:08,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:08,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200939198] [2021-11-03 04:11:08,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200939198] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:11:08,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15038210] [2021-11-03 04:11:08,247 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 04:11:08,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:11:08,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:11:08,253 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:11:08,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 04:11:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:08,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-03 04:11:08,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:08,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:10,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15038210] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:11:10,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [9443008] [2021-11-03 04:11:10,862 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:11:10,862 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:11:10,862 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:11:10,862 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:11:10,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:11:10,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:10,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-03 04:11:10,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:10,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-03 04:11:10,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:10,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-11-03 04:11:10,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:10,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:10,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:10,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:10,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:10,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:10,979 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:10,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:10,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:10,987 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:10,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,000 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,012 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,015 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 04:11:11,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:11:11,018 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-11-03 04:11:11,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-03 04:11:11,022 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-03 04:11:11,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-03 04:11:11,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:11,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:11:11,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-03 04:11:11,042 INFO L180 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-11-03 04:11:11,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:11:11,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,123 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-03 04:11:11,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-11-03 04:11:11,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:11:11,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-03 04:11:11,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-11-03 04:11:11,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:11:11,145 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,150 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,156 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,160 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-03 04:11:11,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-11-03 04:11:11,168 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-11-03 04:11:11,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-11-03 04:11:11,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-11-03 04:11:11,182 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,188 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-11-03 04:11:11,190 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-11-03 04:11:11,192 INFO L185 QuantifierPusher]: treesize reduction 12, result has 87.9 percent of original size 87 [2021-11-03 04:11:11,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,208 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,222 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,226 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-03 04:11:11,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-03 04:11:11,236 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-11-03 04:11:11,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 04:11:11,239 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-03 04:11:11,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-11-03 04:11:11,243 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,251 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,260 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-03 04:11:11,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-11-03 04:11:11,278 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-03 04:11:11,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-03 04:11:11,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-03 04:11:11,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:11:11,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:11:11,298 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-11-03 04:11:11,301 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-11-03 04:11:11,303 INFO L185 QuantifierPusher]: treesize reduction 12, result has 88.8 percent of original size 95 [2021-11-03 04:11:11,308 INFO L185 QuantifierPusher]: treesize reduction 24, result has 89.9 percent of original size 214 [2021-11-03 04:11:11,330 INFO L185 QuantifierPusher]: treesize reduction 24, result has 90.1 percent of original size 218 [2021-11-03 04:11:11,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:11,401 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:11:11,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:11:11,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:11:11,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2021-11-03 04:11:11,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435802310] [2021-11-03 04:11:11,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-11-03 04:11:11,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:11,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-11-03 04:11:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2269, Invalid=7433, Unknown=0, NotChecked=0, Total=9702 [2021-11-03 04:11:11,773 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) [2021-11-03 04:11:13,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:13,609 INFO L93 Difference]: Finished difference Result 238 states and 261 transitions. [2021-11-03 04:11:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-03 04:11:13,610 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 [2021-11-03 04:11:13,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:13,613 INFO L225 Difference]: With dead ends: 238 [2021-11-03 04:11:13,613 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 04:11:13,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4770 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5558, Invalid=15322, Unknown=0, NotChecked=0, Total=20880 [2021-11-03 04:11:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 04:11:13,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-11-03 04:11:13,656 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) [2021-11-03 04:11:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-11-03 04:11:13,658 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 115 [2021-11-03 04:11:13,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:13,659 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-11-03 04:11:13,659 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) [2021-11-03 04:11:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-11-03 04:11:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-03 04:11:13,664 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:13,664 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1] [2021-11-03 04:11:13,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:13,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2021-11-03 04:11:13,885 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)] === [2021-11-03 04:11:13,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1923709923, now seen corresponding path program 5 times [2021-11-03 04:11:13,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:11:13,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058981329] [2021-11-03 04:11:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:13,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:11:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 4711 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-11-03 04:11:16,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:11:16,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058981329] [2021-11-03 04:11:16,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058981329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:16,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:16,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-11-03 04:11:16,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765411638] [2021-11-03 04:11:16,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-03 04:11:16,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:11:16,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-03 04:11:16,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-11-03 04:11:16,981 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) [2021-11-03 04:11:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:17,356 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2021-11-03 04:11:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-03 04:11:17,357 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 [2021-11-03 04:11:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:17,358 INFO L225 Difference]: With dead ends: 236 [2021-11-03 04:11:17,358 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:11:17,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 30 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-11-03 04:11:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:11:17,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:11:17,362 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) [2021-11-03 04:11:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:11:17,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2021-11-03 04:11:17,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:17,362 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:11:17,363 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) [2021-11-03 04:11:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:11:17,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:11:17,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:11:17,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:11:17,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:11:17,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:11:17,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-11-03 04:11:17,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 04:11:17,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:11:17,836 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-11-03 04:11:17,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 04:11:17,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-11-03 04:11:17,837 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-11-03 04:11:17,837 INFO L857 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2021-11-03 04:11:17,837 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))) [2021-11-03 04:11:17,837 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-11-03 04:11:17,838 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-11-03 04:11:17,838 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 04:11:17,838 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-11-03 04:11:17,838 INFO L857 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-11-03 04:11:17,840 INFO L731 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2021-11-03 04:11:17,841 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:11:17,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:11:17 BoogieIcfgContainer [2021-11-03 04:11:17,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:11:17,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:11:17,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:11:17,865 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:11:17,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:59" (3/4) ... [2021-11-03 04:11:17,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:11:17,876 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-03 04:11:17,877 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 04:11:17,877 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:11:17,906 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:11:17,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:11:17,908 INFO L168 Benchmark]: Toolchain (without parser) took 18561.54 ms. Allocated memory was 90.2 MB in the beginning and 197.1 MB in the end (delta: 107.0 MB). Free memory was 56.3 MB in the beginning and 139.2 MB in the end (delta: -82.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:17,908 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:11:17,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.85 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 67.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:17,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 66.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:11:17,909 INFO L168 Benchmark]: Boogie Preprocessor took 18.01 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 65.1 MB in the end (delta: 941.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:11:17,909 INFO L168 Benchmark]: RCFGBuilder took 321.84 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 55.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:17,910 INFO L168 Benchmark]: TraceAbstraction took 17942.32 ms. Allocated memory was 90.2 MB in the beginning and 197.1 MB in the end (delta: 107.0 MB). Free memory was 55.4 MB in the beginning and 142.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 110.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:17,910 INFO L168 Benchmark]: Witness Printer took 42.31 ms. Allocated memory is still 197.1 MB. Free memory was 142.3 MB in the beginning and 139.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:17,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 194.85 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 67.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 66.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.01 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 65.1 MB in the end (delta: 941.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 321.84 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 55.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17942.32 ms. Allocated memory was 90.2 MB in the beginning and 197.1 MB in the end (delta: 107.0 MB). Free memory was 55.4 MB in the beginning and 142.3 MB in the end (delta: -86.9 MB). Peak memory consumption was 110.6 MB. Max. memory is 16.1 GB. * Witness Printer took 42.31 ms. Allocated memory is still 197.1 MB. Free memory was 142.3 MB in the beginning and 139.2 MB in the end (delta: 3.1 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 17.8s, OverallIterations: 8, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 651 SDslu, 642 SDs, 0 SdLazy, 1037 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 871 GetRequests, 506 SyntacticMatches, 30 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7260 ImplicationChecksByTransitivity, 8.5s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 32 NumberOfFragments, 311 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 144 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.0s 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! [2021-11-03 04:11:17,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76613943-45cb-4fed-8d39-9a19401bec27/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE