./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/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_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/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 32bit --witnessprinter.graph.data.programhash 58639ff425b05f7497b3d6ac8d1e0a9c9e2e7663b2f2f0cb8654fd8932f07edd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:41:56,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:41:56,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:41:57,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:41:57,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:41:57,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:41:57,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:41:57,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:41:57,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:41:57,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:41:57,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:41:57,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:41:57,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:41:57,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:41:57,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:41:57,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:41:57,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:41:57,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:41:57,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:41:57,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:41:57,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:41:57,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:41:57,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:41:57,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:41:57,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:41:57,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:41:57,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:41:57,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:41:57,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:41:57,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:41:57,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:41:57,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:41:57,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:41:57,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:41:57,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:41:57,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:41:57,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:41:57,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:41:57,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:41:57,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:41:57,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:41:57,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-03 03:41:57,143 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:41:57,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:41:57,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:41:57,145 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:41:57,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:41:57,146 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:41:57,146 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:41:57,146 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:41:57,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:41:57,147 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:41:57,154 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:41:57,154 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:41:57,154 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:41:57,155 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:41:57,155 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:41:57,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:41:57,156 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:41:57,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 03:41:57,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:41:57,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:41:57,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:41:57,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:41:57,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:41:57,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:41:57,158 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-03 03:41:57,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:41:57,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:41:57,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:41:57,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:41:57,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:41:57,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:41:57,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:41:57,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:41:57,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:41:57,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:41:57,163 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:41:57,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:41:57,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:41:57,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:41:57,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:41:57,164 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_1c85f677-93f9-433c-b50e-3c43bcc24327/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58639ff425b05f7497b3d6ac8d1e0a9c9e2e7663b2f2f0cb8654fd8932f07edd [2021-11-03 03:41:57,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:41:57,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:41:57,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:41:57,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:41:57,438 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:41:57,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i [2021-11-03 03:41:57,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/data/587d55149/155dce46774d4ecfbbc003d00de1dfb1/FLAG64ec6d3f0 [2021-11-03 03:41:57,957 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:41:57,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i [2021-11-03 03:41:57,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/data/587d55149/155dce46774d4ecfbbc003d00de1dfb1/FLAG64ec6d3f0 [2021-11-03 03:41:58,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/data/587d55149/155dce46774d4ecfbbc003d00de1dfb1 [2021-11-03 03:41:58,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:41:58,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:41:58,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:41:58,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:41:58,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:41:58,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59fc69ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58, skipping insertion in model container [2021-11-03 03:41:58,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:41:58,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:41:58,563 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i[873,886] [2021-11-03 03:41:58,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:41:58,593 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:41:58,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i[873,886] [2021-11-03 03:41:58,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:41:58,625 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:41:58,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58 WrapperNode [2021-11-03 03:41:58,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:41:58,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:41:58,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:41:58,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:41:58,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:41:58,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:41:58,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:41:58,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:41:58,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:41:58,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:41:58,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:41:58,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:41:58,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (1/1) ... [2021-11-03 03:41:58,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:41:58,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:41:58,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:41:58,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:41:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:41:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:41:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:41:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:41:58,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:41:58,985 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 03:41:58,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:58 BoogieIcfgContainer [2021-11-03 03:41:58,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:41:58,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:41:58,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:41:58,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:41:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:41:58" (1/3) ... [2021-11-03 03:41:58,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a44bc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:58, skipping insertion in model container [2021-11-03 03:41:58,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:41:58" (2/3) ... [2021-11-03 03:41:58,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a44bc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:58, skipping insertion in model container [2021-11-03 03:41:58,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:58" (3/3) ... [2021-11-03 03:41:58,995 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark08_conjunctive.i [2021-11-03 03:41:59,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:41:59,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 03:41:59,048 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:41:59,054 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 03:41:59,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 03:41:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 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 03:41:59,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 03:41:59,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:59,073 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 03:41:59,074 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 03:41:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2021-11-03 03:41:59,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:41:59,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569704544] [2021-11-03 03:41:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:59,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:41:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:59,262 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 03:41:59,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:41:59,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569704544] [2021-11-03 03:41:59,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569704544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:59,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:59,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:41:59,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990786282] [2021-11-03 03:41:59,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:41:59,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:41:59,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:41:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:41:59,295 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:59,376 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-11-03 03:41:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:41:59,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-03 03:41:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:59,385 INFO L225 Difference]: With dead ends: 19 [2021-11-03 03:41:59,386 INFO L226 Difference]: Without dead ends: 14 [2021-11-03 03:41:59,388 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:41:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-03 03:41:59,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-11-03 03:41:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-03 03:41:59,432 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2021-11-03 03:41:59,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:59,433 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-03 03:41:59,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-03 03:41:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 03:41:59,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:59,434 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 03:41:59,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:41:59,435 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:41:59,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2021-11-03 03:41:59,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:41:59,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173155546] [2021-11-03 03:41:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:59,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:41:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:59,470 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 03:41:59,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:41:59,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173155546] [2021-11-03 03:41:59,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173155546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:59,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:59,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:41:59,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609904704] [2021-11-03 03:41:59,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:41:59,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:41:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:41:59,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:41:59,475 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:59,509 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-03 03:41:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:41:59,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 03:41:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:59,511 INFO L225 Difference]: With dead ends: 15 [2021-11-03 03:41:59,511 INFO L226 Difference]: Without dead ends: 14 [2021-11-03 03:41:59,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:41:59,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-03 03:41:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-03 03:41:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 03:41:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-03 03:41:59,515 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-11-03 03:41:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:59,516 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-03 03:41:59,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-03 03:41:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 03:41:59,517 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:59,517 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 03:41:59,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:41:59,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:41:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2021-11-03 03:41:59,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:41:59,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508538420] [2021-11-03 03:41:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:59,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:41:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:59,578 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 03:41:59,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:41:59,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508538420] [2021-11-03 03:41:59,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508538420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:59,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:59,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:41:59,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124585913] [2021-11-03 03:41:59,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:41:59,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:41:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:41:59,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:41:59,588 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 03:41:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:59,652 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-03 03:41:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:41:59,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 03:41:59,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:59,654 INFO L225 Difference]: With dead ends: 18 [2021-11-03 03:41:59,654 INFO L226 Difference]: Without dead ends: 17 [2021-11-03 03:41:59,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:41:59,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-03 03:41:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-11-03 03:41:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-03 03:41:59,659 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2021-11-03 03:41:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:59,660 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-03 03:41:59,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 03:41:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-03 03:41:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 03:41:59,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:59,661 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:41:59,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 03:41:59,662 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:41:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2021-11-03 03:41:59,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:41:59,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296251070] [2021-11-03 03:41:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:59,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:41:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:59,760 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 03:41:59,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:41:59,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296251070] [2021-11-03 03:41:59,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296251070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:41:59,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:41:59,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:41:59,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740196881] [2021-11-03 03:41:59,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:41:59,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:41:59,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:41:59,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:41:59,764 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:41:59,799 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-03 03:41:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:41:59,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 03:41:59,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:41:59,801 INFO L225 Difference]: With dead ends: 15 [2021-11-03 03:41:59,801 INFO L226 Difference]: Without dead ends: 14 [2021-11-03 03:41:59,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:41:59,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-03 03:41:59,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-03 03:41:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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 03:41:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-03 03:41:59,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2021-11-03 03:41:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:41:59,810 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-03 03:41:59,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:41:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-03 03:41:59,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 03:41:59,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:41:59,812 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:41:59,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 03:41:59,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:41:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:41:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash -803359244, now seen corresponding path program 1 times [2021-11-03 03:41:59,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:41:59,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522081944] [2021-11-03 03:41:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:59,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:41:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:41:59,893 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:41:59,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522081944] [2021-11-03 03:41:59,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522081944] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:41:59,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795115366] [2021-11-03 03:41:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:41:59,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:41:59,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:41:59,897 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:41:59,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 03:41:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:41:59,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:41:59,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:00,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:00,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795115366] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:42:00,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2140553843] [2021-11-03 03:42:00,282 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-03 03:42:00,282 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:42:00,289 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:42:00,296 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:42:00,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:42:00,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:00,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-03 03:42:00,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:00,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:42:00,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-03 03:42:00,381 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-11-03 03:42:00,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:00,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-03 03:42:00,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:00,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:00,410 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:00,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:00,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:00,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:00,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:00,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-03 03:42:00,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:00,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:00,483 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:00,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:42:00,524 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:42:00,524 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-11-03 03:42:00,547 INFO L180 QuantifierPusher]: treesize reduction 21, result has 83.5 percent of original size [2021-11-03 03:42:00,554 INFO L185 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-11-03 03:42:00,564 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.8 percent of original size [2021-11-03 03:42:00,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 03:42:00,580 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.6 percent of original size [2021-11-03 03:42:00,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-11-03 03:42:00,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,703 INFO L180 QuantifierPusher]: treesize reduction 13, result has 94.8 percent of original size [2021-11-03 03:42:00,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-03 03:42:00,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-11-03 03:42:00,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,863 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:00,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:00,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:00,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 03:42:00,878 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:00,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:00,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:00,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:01,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:01,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:01,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:01,031 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:42:02,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:42:02,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:42:02,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2021-11-03 03:42:02,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133972501] [2021-11-03 03:42:02,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:42:02,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:42:02,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:42:02,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-11-03 03:42:02,378 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:02,493 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-11-03 03:42:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:42:02,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 03:42:02,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:02,495 INFO L225 Difference]: With dead ends: 25 [2021-11-03 03:42:02,495 INFO L226 Difference]: Without dead ends: 24 [2021-11-03 03:42:02,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2021-11-03 03:42:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-03 03:42:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2021-11-03 03:42:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.263157894736842) internal successors, (24), 21 states have internal predecessors, (24), 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 03:42:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-11-03 03:42:02,503 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 9 [2021-11-03 03:42:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:02,504 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-11-03 03:42:02,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:02,504 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-11-03 03:42:02,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:42:02,504 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:02,505 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 03:42:02,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:02,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:02,725 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:42:02,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:02,726 INFO L85 PathProgramCache]: Analyzing trace with hash 865667262, now seen corresponding path program 1 times [2021-11-03 03:42:02,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:42:02,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321949203] [2021-11-03 03:42:02,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:02,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:42:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:02,786 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:42:02,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321949203] [2021-11-03 03:42:02,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321949203] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:42:02,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699807346] [2021-11-03 03:42:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:02,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:02,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:02,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:42:02,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 03:42:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:02,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:42:02,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:02,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:03,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699807346] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-03 03:42:03,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-11-03 03:42:03,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 10 [2021-11-03 03:42:03,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125414725] [2021-11-03 03:42:03,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:42:03,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:42:03,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:42:03,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:42:03,009 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 03:42:03,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:03,051 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-11-03 03:42:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:42:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 03:42:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:03,052 INFO L225 Difference]: With dead ends: 22 [2021-11-03 03:42:03,052 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 03:42:03,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:42:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 03:42:03,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-03 03:42:03,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:03,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-03 03:42:03,056 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 10 [2021-11-03 03:42:03,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:03,056 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-03 03:42:03,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 03:42:03,057 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-03 03:42:03,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 03:42:03,057 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:03,057 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-03 03:42:03,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:03,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-03 03:42:03,269 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 03:42:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1065881398, now seen corresponding path program 1 times [2021-11-03 03:42:03,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:42:03,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410506898] [2021-11-03 03:42:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:03,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:42:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:03,320 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 03:42:03,321 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:42:03,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410506898] [2021-11-03 03:42:03,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410506898] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:42:03,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577484359] [2021-11-03 03:42:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:03,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:03,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:42:03,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 03:42:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:03,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:42:03,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:03,422 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 03:42:03,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:03,483 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 03:42:03,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577484359] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:42:03,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [14551337] [2021-11-03 03:42:03,485 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-03 03:42:03,486 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:42:03,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:42:03,486 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:42:03,486 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:42:03,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:03,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:42:03,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:03,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-03 03:42:03,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-03 03:42:03,503 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 10=[|v_#valid_10|]} [2021-11-03 03:42:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:03,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-03 03:42:03,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:03,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:03,513 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:03,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,517 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:03,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:03,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:03,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:03,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-03 03:42:03,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:03,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:03,536 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:03,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,540 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:42:03,545 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:42:03,546 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-11-03 03:42:03,557 INFO L180 QuantifierPusher]: treesize reduction 21, result has 83.5 percent of original size [2021-11-03 03:42:03,562 INFO L185 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-11-03 03:42:03,580 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.8 percent of original size [2021-11-03 03:42:03,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-11-03 03:42:03,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,590 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.7 percent of original size 89 [2021-11-03 03:42:03,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,650 INFO L180 QuantifierPusher]: treesize reduction 13, result has 94.6 percent of original size [2021-11-03 03:42:03,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-03 03:42:03,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-11-03 03:42:03,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,740 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:03,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:03,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:03,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 03:42:03,756 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:03,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:03,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:03,873 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:42:04,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:42:04,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:42:04,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-03 03:42:04,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435503352] [2021-11-03 03:42:04,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 03:42:04,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:42:04,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 03:42:04,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:42:04,913 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 03:42:05,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:05,004 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-11-03 03:42:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 03:42:05,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 03:42:05,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:05,005 INFO L225 Difference]: With dead ends: 31 [2021-11-03 03:42:05,005 INFO L226 Difference]: Without dead ends: 30 [2021-11-03 03:42:05,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-11-03 03:42:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-03 03:42:05,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-11-03 03:42:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 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 03:42:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2021-11-03 03:42:05,010 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 11 [2021-11-03 03:42:05,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:05,010 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-11-03 03:42:05,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 03:42:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-11-03 03:42:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 03:42:05,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:05,011 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1] [2021-11-03 03:42:05,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:05,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-03 03:42:05,225 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:42:05,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1075330740, now seen corresponding path program 2 times [2021-11-03 03:42:05,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:42:05,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913068773] [2021-11-03 03:42:05,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:05,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:42:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:05,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:42:05,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913068773] [2021-11-03 03:42:05,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913068773] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:42:05,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317381536] [2021-11-03 03:42:05,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:42:05,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:05,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:05,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:42:05,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 03:42:05,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-03 03:42:05,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:42:05,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 03:42:05,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:05,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:05,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317381536] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:42:05,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1558566981] [2021-11-03 03:42:05,890 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-03 03:42:05,891 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:42:05,891 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:42:05,891 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:42:05,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:42:05,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:05,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-03 03:42:05,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:05,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:42:05,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-03 03:42:05,914 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 10=[|v_#valid_11|]} [2021-11-03 03:42:05,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:05,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-03 03:42:05,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:05,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:05,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:05,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:05,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:05,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:05,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:05,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:05,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-03 03:42:05,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:05,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:05,964 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:05,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:05,968 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:42:05,971 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:42:05,971 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-11-03 03:42:05,980 INFO L180 QuantifierPusher]: treesize reduction 21, result has 83.5 percent of original size [2021-11-03 03:42:05,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-03 03:42:05,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:05,990 INFO L185 QuantifierPusher]: treesize reduction 8, result has 91.7 percent of original size 88 [2021-11-03 03:42:05,995 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-11-03 03:42:05,999 INFO L185 QuantifierPusher]: treesize reduction 7, result has 93.8 percent of original size 105 [2021-11-03 03:42:06,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,057 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.2 percent of original size [2021-11-03 03:42:06,079 INFO L185 QuantifierPusher]: treesize reduction 12, result has 95.1 percent of original size 231 [2021-11-03 03:42:06,088 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.5 percent of original size [2021-11-03 03:42:06,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-11-03 03:42:06,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,152 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:06,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:06,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:06,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 03:42:06,171 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:06,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:06,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:06,322 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:42:07,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:42:07,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:42:07,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2021-11-03 03:42:07,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659431649] [2021-11-03 03:42:07,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-03 03:42:07,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:42:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-03 03:42:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=749, Unknown=0, NotChecked=0, Total=870 [2021-11-03 03:42:07,589 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:07,909 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-11-03 03:42:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 03:42:07,910 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-03 03:42:07,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:07,911 INFO L225 Difference]: With dead ends: 44 [2021-11-03 03:42:07,911 INFO L226 Difference]: Without dead ends: 43 [2021-11-03 03:42:07,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=249, Invalid=1233, Unknown=0, NotChecked=0, Total=1482 [2021-11-03 03:42:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-03 03:42:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2021-11-03 03:42:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 40 states have internal predecessors, (43), 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 03:42:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2021-11-03 03:42:07,918 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 19 [2021-11-03 03:42:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:07,918 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2021-11-03 03:42:07,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2021-11-03 03:42:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 03:42:07,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:07,920 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1] [2021-11-03 03:42:07,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:08,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-11-03 03:42:08,133 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:42:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:08,134 INFO L85 PathProgramCache]: Analyzing trace with hash 953924228, now seen corresponding path program 2 times [2021-11-03 03:42:08,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:42:08,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327509869] [2021-11-03 03:42:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:08,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:42:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:08,226 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 03:42:08,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:42:08,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327509869] [2021-11-03 03:42:08,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327509869] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:42:08,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798655125] [2021-11-03 03:42:08,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:42:08,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:08,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:08,236 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:42:08,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 03:42:08,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-03 03:42:08,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:42:08,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:42:08,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-03 03:42:08,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:08,502 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-03 03:42:08,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798655125] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:42:08,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1928710648] [2021-11-03 03:42:08,505 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-03 03:42:08,505 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:42:08,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:42:08,506 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:42:08,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:42:08,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,515 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:08,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:42:08,517 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:42:08,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-03 03:42:08,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-03 03:42:08,524 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 10=[|v_#valid_12|]} [2021-11-03 03:42:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:08,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-03 03:42:08,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:08,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:42:08,533 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:08,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,537 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:08,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:08,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:42:08,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-03 03:42:08,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:08,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:42:08,554 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:42:08,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:42:08,560 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:42:08,560 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-11-03 03:42:08,569 INFO L180 QuantifierPusher]: treesize reduction 21, result has 83.5 percent of original size [2021-11-03 03:42:08,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-03 03:42:08,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-03 03:42:08,591 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size [2021-11-03 03:42:08,596 INFO L185 QuantifierPusher]: treesize reduction 8, result has 92.9 percent of original size 105 [2021-11-03 03:42:08,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,641 INFO L180 QuantifierPusher]: treesize reduction 13, result has 95.0 percent of original size [2021-11-03 03:42:08,653 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-03 03:42:08,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-11-03 03:42:08,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,721 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:08,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:08,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:42:08,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 03:42:08,732 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:42:08,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:42:08,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:42:08,831 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:42:09,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:42:09,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:42:09,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2021-11-03 03:42:09,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341009180] [2021-11-03 03:42:09,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 03:42:09,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:42:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 03:42:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2021-11-03 03:42:09,839 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:10,071 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-11-03 03:42:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 03:42:10,072 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-03 03:42:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:10,073 INFO L225 Difference]: With dead ends: 41 [2021-11-03 03:42:10,073 INFO L226 Difference]: Without dead ends: 40 [2021-11-03 03:42:10,073 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=238, Invalid=884, Unknown=0, NotChecked=0, Total=1122 [2021-11-03 03:42:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-03 03:42:10,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-03 03:42:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 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 03:42:10,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-11-03 03:42:10,078 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 26 [2021-11-03 03:42:10,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:10,078 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-11-03 03:42:10,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:42:10,079 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-11-03 03:42:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 03:42:10,080 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:10,080 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1] [2021-11-03 03:42:10,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:10,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:10,305 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:42:10,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:10,306 INFO L85 PathProgramCache]: Analyzing trace with hash 237862964, now seen corresponding path program 3 times [2021-11-03 03:42:10,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:42:10,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078248704] [2021-11-03 03:42:10,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:10,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:42:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:10,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:42:10,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078248704] [2021-11-03 03:42:10,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078248704] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:42:10,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878228214] [2021-11-03 03:42:10,537 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-03 03:42:10,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:42:10,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:10,539 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:42:10,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 03:42:10,641 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-03 03:42:10,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:42:10,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 03:42:10,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:42:11,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:22,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878228214] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:43:22,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [160609350] [2021-11-03 03:43:22,566 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-03 03:43:22,566 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:43:22,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:43:22,566 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:43:22,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:43:22,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:43:22,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:43:22,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:43:22,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-03 03:43:22,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-03 03:43:22,579 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 10=[|v_#valid_13|]} [2021-11-03 03:43:22,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:43:22,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-03 03:43:22,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:43:22,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 03:43:22,589 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:43:22,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,593 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:43:22,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:43:22,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:43:22,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:43:22,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-03 03:43:22,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:43:22,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:43:22,613 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:43:22,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:43:22,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:43:22,620 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-11-03 03:43:22,629 INFO L180 QuantifierPusher]: treesize reduction 21, result has 83.5 percent of original size [2021-11-03 03:43:22,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-03 03:43:22,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,638 INFO L185 QuantifierPusher]: treesize reduction 11, result has 88.3 percent of original size 83 [2021-11-03 03:43:22,642 INFO L180 QuantifierPusher]: treesize reduction 11, result has 90.6 percent of original size [2021-11-03 03:43:22,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-03 03:43:22,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,690 INFO L180 QuantifierPusher]: treesize reduction 5, result has 98.0 percent of original size [2021-11-03 03:43:22,706 INFO L185 QuantifierPusher]: treesize reduction 19, result has 91.8 percent of original size 212 [2021-11-03 03:43:22,714 INFO L180 QuantifierPusher]: treesize reduction 19, result has 92.5 percent of original size [2021-11-03 03:43:22,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 03:43:22,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,758 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:43:22,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:43:22,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:43:22,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-03 03:43:22,768 INFO L180 QuantifierPusher]: treesize reduction 29, result has 61.3 percent of original size [2021-11-03 03:43:22,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:43:22,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:43:22,918 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:43:24,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:43:24,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:43:24,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 17] total 47 [2021-11-03 03:43:24,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239893864] [2021-11-03 03:43:24,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-03 03:43:24,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:43:24,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-03 03:43:24,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2578, Unknown=29, NotChecked=0, Total=2970 [2021-11-03 03:43:24,474 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 48 states, 47 states have (on average 2.4468085106382977) internal successors, (115), 48 states have internal predecessors, (115), 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 03:43:26,855 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 (* c_ULTIMATE.start_main_~sum~0 (- 1)))) (let ((.cse29 (+ (div (+ .cse10 2147483639) 2) 1)) (.cse28 (+ |c_ULTIMATE.start_main_#t~post6| 1)) (.cse22 (* c_ULTIMATE.start_main_~i~0 (- 1))) (.cse41 (* 2 c_ULTIMATE.start_main_~i~0))) (and (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int)) (let ((.cse2 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse6 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse7 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (.cse1 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse2)) (.cse0 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse9 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse3 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse4 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse8 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse5 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120))) (or (<= (+ .cse0 2) .cse1) (<= (+ |c_ULTIMATE.start_main_#t~post6| (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) 2147483646) (- 2)) 9 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse2) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| 1) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| 14 .cse3 .cse4) (+ .cse5 .cse6)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 .cse7) (<= (+ 2147483649 .cse3 .cse4) (+ .cse8 .cse9 c_ULTIMATE.start_main_~sum~0 .cse6)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 .cse7) (< .cse1 .cse0) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= 2147483636 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse8 .cse5 c_ULTIMATE.start_main_~sum~0)) (<= (+ .cse8 .cse9 c_ULTIMATE.start_main_~sum~0 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (+ .cse3 2147483639 .cse4)) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse8 .cse5 c_ULTIMATE.start_main_~sum~0) 2147483630) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))))) (<= |c_ULTIMATE.start_main_#t~post6| (div (+ .cse10 (* |c_ULTIMATE.start_main_#t~post6| (- 1)) 2147483641) 2)) (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_65_68 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int)) (let ((.cse21 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse17 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse13 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse19 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse21)) (.cse18 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse11 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_65_68)) (.cse12 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse16 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse20 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (.cse14 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse15 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (or (<= 0 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse11 9 .cse12 .cse13)) (<= (+ .cse14 .cse15 4) (+ .cse11 .cse12 .cse16 .cse17)) (<= (+ .cse18 2) .cse19) (<= (+ |c_ULTIMATE.start_main_#t~post6| 2) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse12 .cse16 c_ULTIMATE.start_main_~sum~0 .cse20) (+ 2147483638 .cse14 .cse15)) (<= (+ |c_ULTIMATE.start_main_#t~post6| aux_div_v_ULTIMATE.start_main_~sum~0_65_68 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 10 .cse21) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse14 15 .cse15) (+ .cse13 .cse17)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| aux_div_v_ULTIMATE.start_main_~sum~0_64_120 1) (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) 2147483630 (* aux_div_v_ULTIMATE.start_main_~i~0_52_153 (- 5))) 2)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse11 .cse12 .cse13 17) 0) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| c_ULTIMATE.start_main_~sum~0) (+ 2147483643 .cse11)) (< .cse19 .cse18) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= (+ 7 .cse11 .cse12 .cse16 .cse20) (+ .cse14 .cse15)) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))))) (<= c_ULTIMATE.start_main_~i~0 (div (+ .cse22 .cse10 2147483644) 2)) (<= (+ |c_ULTIMATE.start_main_#t~post6| c_ULTIMATE.start_main_~sum~0) 2147483646) (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int)) (let ((.cse26 (* c_ULTIMATE.start_main_~i~0 (- 1)))) (let ((.cse24 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (.cse23 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse25 (div (+ .cse26 (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 2) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 (- 4)) (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 (- 2)) (- 8)) (- 5))) (.cse27 (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)))) (or (<= (+ .cse23 2) .cse24) (<= c_ULTIMATE.start_main_~i~0 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= .cse25 (+ (div (+ .cse26 (* c_ULTIMATE.start_main_~sum~0 (- 1)) .cse27 2147483636) 5) 1)) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (< .cse24 .cse23) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= .cse25 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ (* 2 c_ULTIMATE.start_main_~i~0) c_ULTIMATE.start_main_~sum~0 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151) (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) 2147483630) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151) (<= .cse25 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) .cse27 (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)))))) (<= .cse28 (div .cse29 2)) (forall ((aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58 Int)) (or (<= (+ (* 2 aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58) 1) (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) (* |c_ULTIMATE.start_main_#t~post6| (- 1)) 2147483634) 2)) (<= (div (+ (* aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58 5) c_ULTIMATE.start_main_~sum~0 (- 2147483637)) (- 2)) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| 1) aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58))) (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_65_68 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int)) (let ((.cse33 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse37 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse39 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse33)) (.cse38 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse32 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse30 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_65_68)) (.cse31 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse36 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse40 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (.cse34 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse35 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (or (<= 0 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse30 9 .cse31 .cse32)) (<= (+ c_ULTIMATE.start_main_~i~0 aux_div_v_ULTIMATE.start_main_~sum~0_65_68 9 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse33) 0) (<= (+ .cse34 .cse35 4) (+ .cse30 .cse31 .cse36 .cse37)) (<= (+ .cse38 2) .cse39) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ c_ULTIMATE.start_main_~i~0 1) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ c_ULTIMATE.start_main_~i~0 14 .cse34 .cse35) (+ .cse32 .cse37)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= (+ (* 2 c_ULTIMATE.start_main_~i~0) .cse31 .cse32 c_ULTIMATE.start_main_~sum~0) 2147483630) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (< .cse39 .cse38) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= (+ c_ULTIMATE.start_main_~i~0 .cse30 16 .cse31 .cse32) 0) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= (+ c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~sum~0) (+ .cse30 2147483644)) (<= (+ 7 .cse30 .cse31 .cse36 .cse40) (+ .cse34 .cse35)) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151) (<= (+ c_ULTIMATE.start_main_~i~0 .cse31 .cse36 c_ULTIMATE.start_main_~sum~0 .cse40) (+ .cse34 2147483639 .cse35)))))) (<= (+ c_ULTIMATE.start_main_~i~0 c_ULTIMATE.start_main_~sum~0) 2147483647) (<= .cse41 .cse29) (<= .cse28 (div (+ .cse10 2147483646) 2)) (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int)) (let ((.cse44 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse48 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse43 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse44)) (.cse42 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse50 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse45 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse46 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse49 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse47 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120))) (or (<= (+ .cse42 2) .cse43) (<= (+ |c_ULTIMATE.start_main_#t~post6| (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) 2147483646) (- 2)) 9 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse44) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| 1) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| 14 .cse45 .cse46) (+ .cse47 .cse48)) (<= (+ 2147483649 .cse45 .cse46) (+ .cse49 .cse50 c_ULTIMATE.start_main_~sum~0 .cse48)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (< .cse43 .cse42) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= 2147483636 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse49 .cse47 c_ULTIMATE.start_main_~sum~0)) (<= (+ .cse49 .cse50 c_ULTIMATE.start_main_~sum~0 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (+ .cse45 2147483639 .cse46)) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse49 .cse47 c_ULTIMATE.start_main_~sum~0) 2147483630) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))))) (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_66_116 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_65_68 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int)) (let ((.cse63 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse57 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse60 (* 2 c_ULTIMATE.start_main_~i~0)) (.cse59 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse63)) (.cse58 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse62 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_66_116)) (.cse53 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse51 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_65_68)) (.cse52 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse56 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse61 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (.cse54 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse55 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (or (<= 0 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse51 9 .cse52 .cse53)) (<= (+ .cse54 .cse55 4) (+ .cse51 .cse52 .cse56 .cse57)) (<= (+ .cse58 2) .cse59) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ c_ULTIMATE.start_main_~i~0 .cse54 15 .cse55) (+ .cse53 .cse57)) (<= (+ .cse60 .cse52 .cse56 c_ULTIMATE.start_main_~sum~0 .cse61) (+ 2147483638 .cse54 .cse55)) (<= (+ .cse60 c_ULTIMATE.start_main_~sum~0) (+ 2147483643 .cse51)) (<= (+ c_ULTIMATE.start_main_~i~0 aux_div_v_ULTIMATE.start_main_~sum~0_64_120 1) aux_div_v_ULTIMATE.start_main_~sum~0_66_116) (<= (+ c_ULTIMATE.start_main_~i~0 .cse52 .cse62 c_ULTIMATE.start_main_~sum~0) 2147483628) (<= (+ c_ULTIMATE.start_main_~i~0 2) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (<= (+ c_ULTIMATE.start_main_~i~0 .cse56 .cse61) (+ .cse62 .cse54 8 .cse55)) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (<= (+ c_ULTIMATE.start_main_~i~0 aux_div_v_ULTIMATE.start_main_~sum~0_65_68 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 10 .cse63) 0) (< .cse59 .cse58) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= c_ULTIMATE.start_main_~i~0 (+ .cse51 .cse52 .cse62 13)) (<= (+ c_ULTIMATE.start_main_~i~0 .cse51 .cse52 .cse53 17) 0) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= (+ 7 .cse51 .cse52 .cse56 .cse61) (+ .cse54 .cse55)) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))))) (<= c_ULTIMATE.start_main_~i~0 (div (+ (div (+ .cse22 .cse10 2147483639) 2) (- 1)) 2)) (<= (+ .cse41 c_ULTIMATE.start_main_~sum~0) 2147483646)))) is different from false [2021-11-03 03:43:28,892 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse22 (+ |c_ULTIMATE.start_main_#t~post6| 1)) (.cse10 (* c_ULTIMATE.start_main_~sum~0 (- 1)))) (and (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int)) (let ((.cse2 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse6 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse7 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (.cse1 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse2)) (.cse0 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse9 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse3 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse4 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse8 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse5 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120))) (or (<= (+ .cse0 2) .cse1) (<= (+ |c_ULTIMATE.start_main_#t~post6| (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) 2147483646) (- 2)) 9 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse2) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| 1) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| 14 .cse3 .cse4) (+ .cse5 .cse6)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 .cse7) (<= (+ 2147483649 .cse3 .cse4) (+ .cse8 .cse9 c_ULTIMATE.start_main_~sum~0 .cse6)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 .cse7) (< .cse1 .cse0) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= 2147483636 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse8 .cse5 c_ULTIMATE.start_main_~sum~0)) (<= (+ .cse8 .cse9 c_ULTIMATE.start_main_~sum~0 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (+ .cse3 2147483639 .cse4)) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse8 .cse5 c_ULTIMATE.start_main_~sum~0) 2147483630) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))))) (<= |c_ULTIMATE.start_main_#t~post6| (div (+ .cse10 (* |c_ULTIMATE.start_main_#t~post6| (- 1)) 2147483641) 2)) (forall ((aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_64_120 Int) (aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 Int) (aux_div_v_ULTIMATE.start_main_~i~0_52_153 Int) (aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 Int) (aux_div_v_ULTIMATE.start_main_~sum~0_65_68 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 Int) (aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 Int)) (let ((.cse21 (* 2 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (let ((.cse17 (* 5 aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133)) (.cse13 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse19 (+ aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 .cse21)) (.cse18 (* 2 aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73)) (.cse11 (* 2 aux_div_v_ULTIMATE.start_main_~sum~0_65_68)) (.cse12 (* 5 aux_div_v_ULTIMATE.start_main_~i~0_52_153)) (.cse16 (* 4 aux_div_v_ULTIMATE.start_main_~sum~0_64_120)) (.cse20 (* 5 aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375)) (.cse14 (* 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151)) (.cse15 (* 4 aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))) (or (<= 0 (+ aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73 .cse11 9 .cse12 .cse13)) (<= (+ .cse14 .cse15 4) (+ .cse11 .cse12 .cse16 .cse17)) (<= (+ .cse18 2) .cse19) (<= (+ |c_ULTIMATE.start_main_#t~post6| 2) aux_div_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ (div (+ (* aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 2) (* aux_div_v_ULTIMATE.start_main_~sum~0_64_120 (- 2)) (* aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 4) 4) 4) 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse12 .cse16 c_ULTIMATE.start_main_~sum~0 .cse20) (+ 2147483638 .cse14 .cse15)) (<= (+ |c_ULTIMATE.start_main_#t~post6| aux_div_v_ULTIMATE.start_main_~sum~0_65_68 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 10 .cse21) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse14 15 .cse15) (+ .cse13 .cse17)) (<= aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 (+ aux_div_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| aux_div_v_ULTIMATE.start_main_~sum~0_64_120 1) (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) 2147483630 (* aux_div_v_ULTIMATE.start_main_~i~0_52_153 (- 5))) 2)) (<= (+ aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375 1) aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133) (<= (+ |c_ULTIMATE.start_main_#t~post6| .cse11 .cse12 .cse13 17) 0) (< aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151 0) (<= aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 (+ aux_div_v_ULTIMATE.start_main_~i~0_52_153 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6| c_ULTIMATE.start_main_~sum~0) (+ 2147483643 .cse11)) (< .cse19 .cse18) (<= aux_div_v_ULTIMATE.start_main_~sum~0_64_120 0) (<= (+ aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375_133 1) aux_div_aux_mod_v_ULTIMATE.start_main_~i~0_52_153_375) (<= (+ 7 .cse11 .cse12 .cse16 .cse20) (+ .cse14 .cse15)) (<= 2 aux_mod_aux_mod_aux_div_aux_mod_v_ULTIMATE.start_main_~sum~0_64_120_225_73_151))))) (<= (+ |c_ULTIMATE.start_main_#t~post6| c_ULTIMATE.start_main_~sum~0) 2147483646) (<= .cse22 (div (+ (div (+ .cse10 2147483639) 2) 1) 2)) (forall ((aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58 Int)) (or (<= (+ (* 2 aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58) 1) (div (+ (* c_ULTIMATE.start_main_~sum~0 (- 1)) (* |c_ULTIMATE.start_main_#t~post6| (- 1)) 2147483634) 2)) (<= (div (+ (* aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58 5) c_ULTIMATE.start_main_~sum~0 (- 2147483637)) (- 2)) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6| 1) aux_div_aux_div_v_ULTIMATE.start_main_~i~0_51_99_58))) (<= .cse22 (div (+ .cse10 2147483646) 2)))) is different from false [2021-11-03 03:43:43,854 WARN L207 SmtUtils]: Spent 12.53 s on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2021-11-03 03:44:52,892 WARN L207 SmtUtils]: Spent 17.93 s on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2021-11-03 03:46:02,303 WARN L207 SmtUtils]: Spent 29.23 s on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-11-03 03:47:07,830 WARN L207 SmtUtils]: Spent 10.85 s on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-11-03 03:47:10,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:10,398 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2021-11-03 03:47:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-03 03:47:10,398 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.4468085106382977) internal successors, (115), 48 states have internal predecessors, (115), 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 39 [2021-11-03 03:47:10,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:10,399 INFO L225 Difference]: With dead ends: 81 [2021-11-03 03:47:10,399 INFO L226 Difference]: Without dead ends: 80 [2021-11-03 03:47:10,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1538 ImplicationChecksByTransitivity, 262.9s TimeCoverageRelationStatistics Valid=921, Invalid=4562, Unknown=75, NotChecked=294, Total=5852 [2021-11-03 03:47:10,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-03 03:47:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-03 03:47:10,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0126582278481013) internal successors, (80), 79 states have internal predecessors, (80), 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 03:47:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2021-11-03 03:47:10,411 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 39 [2021-11-03 03:47:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:10,412 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2021-11-03 03:47:10,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.4468085106382977) internal successors, (115), 48 states have internal predecessors, (115), 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 03:47:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2021-11-03 03:47:10,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 03:47:10,415 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:10,415 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1] [2021-11-03 03:47:10,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:10,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:47:10,641 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-03 03:47:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1923662644, now seen corresponding path program 4 times [2021-11-03 03:47:10,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:47:10,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180210137] [2021-11-03 03:47:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:10,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:47:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:11,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:47:11,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180210137] [2021-11-03 03:47:11,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180210137] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:47:11,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589892943] [2021-11-03 03:47:11,317 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-03 03:47:11,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:47:11,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:11,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:47:11,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c85f677-93f9-433c-b50e-3c43bcc24327/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 03:47:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:11,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-03 03:47:11,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:13,396 INFO L328 TraceCheckSpWp]: Computing backward predicates...