./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF --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 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:31:31,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:31:31,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:31:31,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:31:31,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:31:31,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:31:31,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:31:31,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:31:31,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:31:31,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:31:31,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:31:31,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:31:31,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:31:31,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:31:31,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:31:31,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:31:31,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:31:31,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:31:31,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:31:31,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:31:31,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:31:31,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:31:31,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:31:31,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:31:31,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:31:31,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:31:31,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:31:31,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:31:31,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:31:31,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:31:31,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:31:31,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:31:31,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:31:31,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:31:31,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:31:31,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:31:31,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:31:31,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:31:31,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:31:31,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:31:31,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:31:31,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-13 01:31:32,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:31:32,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:31:32,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:31:32,007 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:31:32,008 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:31:32,008 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:31:32,008 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:31:32,009 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:31:32,017 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:31:32,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:31:32,019 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:31:32,019 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:31:32,020 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:31:32,020 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:31:32,020 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:31:32,021 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:31:32,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:31:32,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:31:32,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:31:32,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:31:32,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:31:32,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:31:32,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:31:32,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:31:32,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:31:32,024 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 01:31:32,025 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:31:32,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:31:32,025 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:31:32,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:31:32,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:31:32,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:31:32,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:32,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:31:32,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:31:32,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:31:32,031 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:31:32,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:31:32,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:31:32,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:31:32,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:31:32,032 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_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 [2021-11-13 01:31:32,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:31:32,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:31:32,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:31:32,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:31:32,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:31:32,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2021-11-13 01:31:32,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/data/41f6dd290/5859a9068d2748369f1c10ec11c7cc0f/FLAG4545a6fca [2021-11-13 01:31:33,131 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:31:33,132 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2021-11-13 01:31:33,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/data/41f6dd290/5859a9068d2748369f1c10ec11c7cc0f/FLAG4545a6fca [2021-11-13 01:31:33,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/data/41f6dd290/5859a9068d2748369f1c10ec11c7cc0f [2021-11-13 01:31:33,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:31:33,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:31:33,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:33,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:31:33,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:31:33,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ffe276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33, skipping insertion in model container [2021-11-13 01:31:33,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:31:33,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:31:33,749 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_ca6b9fb8-0701-40f9-9ed0-845d42352994/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i[873,886] [2021-11-13 01:31:33,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:33,768 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:31:33,779 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_ca6b9fb8-0701-40f9-9ed0-845d42352994/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i[873,886] [2021-11-13 01:31:33,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:31:33,799 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:31:33,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33 WrapperNode [2021-11-13 01:31:33,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:31:33,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:31:33,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:31:33,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:31:33,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:31:33,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:31:33,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:31:33,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:31:33,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:31:33,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:31:33,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:31:33,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:31:33,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (1/1) ... [2021-11-13 01:31:33,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:31:33,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:33,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:31:33,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:31:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:31:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:31:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:31:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:31:34,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:31:34,288 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:31:34,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:34 BoogieIcfgContainer [2021-11-13 01:31:34,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:31:34,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:31:34,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:31:34,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:31:34,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:31:33" (1/3) ... [2021-11-13 01:31:34,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b425f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:34, skipping insertion in model container [2021-11-13 01:31:34,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:33" (2/3) ... [2021-11-13 01:31:34,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b425f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:34, skipping insertion in model container [2021-11-13 01:31:34,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:34" (3/3) ... [2021-11-13 01:31:34,302 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark22_conjunctive.i [2021-11-13 01:31:34,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:31:34,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-13 01:31:34,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:31:34,400 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 [2021-11-13 01:31:34,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 01:31:34,436 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) [2021-11-13 01:31:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:31:34,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:34,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:31:34,448 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)] === [2021-11-13 01:31:34,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2021-11-13 01:31:34,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:34,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520361428] [2021-11-13 01:31:34,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:34,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:34,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:34,646 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:34,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520361428] [2021-11-13 01:31:34,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520361428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:34,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:34,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:31:34,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433874135] [2021-11-13 01:31:34,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:34,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:31:34,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:31:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:31:34,695 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) [2021-11-13 01:31:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:34,813 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-11-13 01:31:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:31:34,816 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 [2021-11-13 01:31:34,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:34,826 INFO L225 Difference]: With dead ends: 19 [2021-11-13 01:31:34,826 INFO L226 Difference]: Without dead ends: 14 [2021-11-13 01:31:34,830 INFO L932 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 [2021-11-13 01:31:34,835 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.79ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:34,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 16 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 89.79ms Time] [2021-11-13 01:31:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-13 01:31:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-11-13 01:31:34,883 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) [2021-11-13 01:31:34,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-13 01:31:34,886 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2021-11-13 01:31:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:34,886 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-13 01:31:34,887 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) [2021-11-13 01:31:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-13 01:31:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:31:34,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:34,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:31:34,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:31:34,889 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)] === [2021-11-13 01:31:34,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2021-11-13 01:31:34,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:34,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504038923] [2021-11-13 01:31:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:34,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:34,935 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:34,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504038923] [2021-11-13 01:31:34,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504038923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:34,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:34,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:31:34,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853735356] [2021-11-13 01:31:34,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:34,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:31:34,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:31:34,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:31:34,940 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) [2021-11-13 01:31:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:34,958 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-13 01:31:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:31:34,959 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 [2021-11-13 01:31:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:34,960 INFO L225 Difference]: With dead ends: 15 [2021-11-13 01:31:34,960 INFO L226 Difference]: Without dead ends: 14 [2021-11-13 01:31:34,960 INFO L932 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 [2021-11-13 01:31:34,963 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.39ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:34,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.50ms Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 14.39ms Time] [2021-11-13 01:31:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-13 01:31:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-13 01:31:34,968 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) [2021-11-13 01:31:34,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-13 01:31:34,969 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-11-13 01:31:34,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:34,969 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-13 01:31:34,970 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) [2021-11-13 01:31:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-13 01:31:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:31:34,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:34,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:31:34,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:31:34,972 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)] === [2021-11-13 01:31:34,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:34,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2021-11-13 01:31:34,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:34,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287784438] [2021-11-13 01:31:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:34,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:35,035 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:35,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287784438] [2021-11-13 01:31:35,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287784438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:35,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:35,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:31:35,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010738448] [2021-11-13 01:31:35,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:35,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:31:35,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:35,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:31:35,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:31:35,039 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) [2021-11-13 01:31:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:35,091 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-13 01:31:35,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:31:35,093 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 [2021-11-13 01:31:35,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:35,094 INFO L225 Difference]: With dead ends: 18 [2021-11-13 01:31:35,095 INFO L226 Difference]: Without dead ends: 17 [2021-11-13 01:31:35,095 INFO L932 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 [2021-11-13 01:31:35,097 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.06ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:35,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 19 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 36.06ms Time] [2021-11-13 01:31:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-13 01:31:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-11-13 01:31:35,103 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) [2021-11-13 01:31:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-13 01:31:35,104 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2021-11-13 01:31:35,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:35,104 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-13 01:31:35,105 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) [2021-11-13 01:31:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-13 01:31:35,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:31:35,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:35,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:35,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:31:35,106 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)] === [2021-11-13 01:31:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2021-11-13 01:31:35,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:35,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014104194] [2021-11-13 01:31:35,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:35,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:35,215 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:35,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014104194] [2021-11-13 01:31:35,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014104194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:35,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:31:35,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:31:35,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706442905] [2021-11-13 01:31:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:35,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:31:35,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:35,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:31:35,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:31:35,218 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) [2021-11-13 01:31:35,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:35,243 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-13 01:31:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:31:35,244 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 [2021-11-13 01:31:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:35,245 INFO L225 Difference]: With dead ends: 15 [2021-11-13 01:31:35,245 INFO L226 Difference]: Without dead ends: 14 [2021-11-13 01:31:35,245 INFO L932 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 [2021-11-13 01:31:35,247 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.51ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.92ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:35,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.51ms Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 14.92ms Time] [2021-11-13 01:31:35,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-13 01:31:35,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-13 01:31:35,254 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) [2021-11-13 01:31:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-13 01:31:35,255 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2021-11-13 01:31:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:35,255 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-13 01:31:35,256 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) [2021-11-13 01:31:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-13 01:31:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:31:35,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:35,257 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:35,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:31:35,257 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)] === [2021-11-13 01:31:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash -803359244, now seen corresponding path program 1 times [2021-11-13 01:31:35,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:35,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856131734] [2021-11-13 01:31:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:35,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:35,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:35,328 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:35,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856131734] [2021-11-13 01:31:35,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856131734] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:35,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758366980] [2021-11-13 01:31:35,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:35,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:35,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:35,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:31:35,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:31:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:35,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:31:35,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:35,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:35,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:35,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758366980] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:35,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2089279997] [2021-11-13 01:31:35,619 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-13 01:31:35,619 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:31:35,625 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:31:35,631 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:31:35,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:31:35,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:31:35,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-13 01:31:35,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:31:35,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-13 01:31:35,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-13 01:31:35,711 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-11-13 01:31:35,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:35,741 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 [2021-11-13 01:31:35,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:31:35,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:31:35,745 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:31:35,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:35,769 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:35,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:35,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:35,789 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 [2021-11-13 01:31:35,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:31:35,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:31:35,795 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:31:35,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:35,812 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,814 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 01:31:35,817 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:31:35,818 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-13 01:31:35,828 INFO L180 QuantifierPusher]: treesize reduction 16, result has 84.0 percent of original size [2021-11-13 01:31:35,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:35,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-13 01:31:35,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,856 INFO L185 QuantifierPusher]: treesize reduction 8, result has 90.6 percent of original size 77 [2021-11-13 01:31:35,861 INFO L180 QuantifierPusher]: treesize reduction 8, result has 91.3 percent of original size [2021-11-13 01:31:35,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:35,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:35,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:35,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:35,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-13 01:31:35,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:36,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-13 01:31:36,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:36,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-13 01:31:36,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,116 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:31:36,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:31:36,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:36,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:36,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:36,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:36,142 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:31:36,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:31:36,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:36,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:36,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:36,240 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:31:37,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:31:37,096 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:31:37,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2021-11-13 01:31:37,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900441452] [2021-11-13 01:31:37,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:31:37,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 01:31:37,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 01:31:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-13 01:31:37,099 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) [2021-11-13 01:31:37,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:37,216 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-11-13 01:31:37,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:31:37,217 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 [2021-11-13 01:31:37,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:37,218 INFO L225 Difference]: With dead ends: 25 [2021-11-13 01:31:37,218 INFO L226 Difference]: Without dead ends: 24 [2021-11-13 01:31:37,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-11-13 01:31:37,221 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.60ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.11ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:37,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 13 Invalid, 65 Unknown, 0 Unchecked, 1.60ms Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 59.11ms Time] [2021-11-13 01:31:37,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-13 01:31:37,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2021-11-13 01:31:37,227 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) [2021-11-13 01:31:37,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-11-13 01:31:37,228 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 9 [2021-11-13 01:31:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:37,228 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-11-13 01:31:37,229 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) [2021-11-13 01:31:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-11-13 01:31:37,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:31:37,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:37,230 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-13 01:31:37,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:37,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:37,456 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)] === [2021-11-13 01:31:37,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash 865667262, now seen corresponding path program 1 times [2021-11-13 01:31:37,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:37,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434680087] [2021-11-13 01:31:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:37,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:37,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:37,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434680087] [2021-11-13 01:31:37,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434680087] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:37,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178698475] [2021-11-13 01:31:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:37,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:37,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:37,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:31:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 01:31:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:37,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:31:37,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:37,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:37,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178698475] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:37,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:31:37,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 10 [2021-11-13 01:31:37,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109387214] [2021-11-13 01:31:37,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:37,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:31:37,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:37,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:31:37,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:31:37,721 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) [2021-11-13 01:31:37,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:37,764 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-11-13 01:31:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:31:37,765 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 [2021-11-13 01:31:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:37,766 INFO L225 Difference]: With dead ends: 22 [2021-11-13 01:31:37,766 INFO L226 Difference]: Without dead ends: 21 [2021-11-13 01:31:37,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:31:37,768 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.66ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.82ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:37,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 27 Unknown, 0 Unchecked, 0.66ms Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 23.82ms Time] [2021-11-13 01:31:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-13 01:31:37,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-13 01:31:37,773 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) [2021-11-13 01:31:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-13 01:31:37,774 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 10 [2021-11-13 01:31:37,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:37,774 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-13 01:31:37,774 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) [2021-11-13 01:31:37,775 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-13 01:31:37,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:31:37,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:37,775 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-13 01:31:37,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:38,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-13 01:31:38,004 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)] === [2021-11-13 01:31:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1065881398, now seen corresponding path program 1 times [2021-11-13 01:31:38,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:38,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741155939] [2021-11-13 01:31:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:38,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:38,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:38,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741155939] [2021-11-13 01:31:38,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741155939] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:38,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099038990] [2021-11-13 01:31:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:38,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:38,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:38,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:31:38,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 01:31:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:38,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:31:38,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:38,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:38,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099038990] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:38,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [244188116] [2021-11-13 01:31:38,247 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-13 01:31:38,247 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:31:38,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:31:38,248 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:31:38,248 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:31:38,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,275 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:31:38,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-13 01:31:38,277 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:31:38,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-13 01:31:38,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-13 01:31:38,289 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 10=[|v_#valid_10|]} [2021-11-13 01:31:38,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:38,299 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 [2021-11-13 01:31:38,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:31:38,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:31:38,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:31:38,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:38,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:38,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:38,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:38,323 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 [2021-11-13 01:31:38,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:31:38,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:31:38,330 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:31:38,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 01:31:38,344 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:31:38,344 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-13 01:31:38,354 INFO L180 QuantifierPusher]: treesize reduction 16, result has 84.0 percent of original size [2021-11-13 01:31:38,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:38,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,372 INFO L185 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-11-13 01:31:38,379 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.3 percent of original size [2021-11-13 01:31:38,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:38,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:38,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-13 01:31:38,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-13 01:31:38,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-13 01:31:38,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,599 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:31:38,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:31:38,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:38,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:38,637 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:31:38,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:31:38,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:38,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:38,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:38,698 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:31:39,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [244188116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:31:39,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:31:39,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5] total 14 [2021-11-13 01:31:39,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726708678] [2021-11-13 01:31:39,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:31:39,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:31:39,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:39,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:31:39,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:31:39,330 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:40,100 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-11-13 01:31:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:31:40,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 01:31:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:40,102 INFO L225 Difference]: With dead ends: 21 [2021-11-13 01:31:40,102 INFO L226 Difference]: Without dead ends: 20 [2021-11-13 01:31:40,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-11-13 01:31:40,103 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 18 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.86ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.85ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:40,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 23 Unknown, 0 Unchecked, 0.86ms Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 39.85ms Time] [2021-11-13 01:31:40,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-13 01:31:40,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-13 01:31:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:40,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-13 01:31:40,111 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2021-11-13 01:31:40,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:40,111 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-13 01:31:40,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:31:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-13 01:31:40,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 01:31:40,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:40,113 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1] [2021-11-13 01:31:40,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:40,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-13 01:31:40,340 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)] === [2021-11-13 01:31:40,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:40,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1075330740, now seen corresponding path program 2 times [2021-11-13 01:31:40,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:40,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278715408] [2021-11-13 01:31:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:40,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:40,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:40,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278715408] [2021-11-13 01:31:40,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278715408] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:40,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803283611] [2021-11-13 01:31:40,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 01:31:40,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:40,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:40,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:31:40,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 01:31:40,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-13 01:31:40,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:31:40,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 01:31:40,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:40,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:31:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:40,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803283611] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:31:40,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [876796012] [2021-11-13 01:31:40,956 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-13 01:31:40,956 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:31:40,957 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:31:40,957 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:31:40,957 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:31:40,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:40,971 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:31:40,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:40,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-13 01:31:40,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:31:40,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:40,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-13 01:31:40,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-13 01:31:40,992 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 10=[|v_#valid_11|]} [2021-11-13 01:31:40,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:41,001 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 [2021-11-13 01:31:41,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:31:41,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:31:41,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:31:41,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:41,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:41,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:41,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:31:41,026 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 [2021-11-13 01:31:41,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:31:41,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:31:41,030 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:31:41,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,034 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,036 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 01:31:41,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:31:41,037 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-13 01:31:41,042 INFO L180 QuantifierPusher]: treesize reduction 16, result has 84.0 percent of original size [2021-11-13 01:31:41,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:41,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-13 01:31:41,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,058 INFO L185 QuantifierPusher]: treesize reduction 8, result has 90.6 percent of original size 77 [2021-11-13 01:31:41,061 INFO L180 QuantifierPusher]: treesize reduction 8, result has 91.3 percent of original size [2021-11-13 01:31:41,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:31:41,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-13 01:31:41,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-11-13 01:31:41,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-11-13 01:31:41,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,169 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:31:41,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:31:41,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:41,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:41,187 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:31:41,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:31:41,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:31:41,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:31:41,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:31:41,224 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:31:42,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:31:42,078 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:31:42,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2021-11-13 01:31:42,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111405144] [2021-11-13 01:31:42,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:31:42,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 01:31:42,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:31:42,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 01:31:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2021-11-13 01:31:42,081 INFO L87 Difference]: Start difference. First operand 20 states and 20 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) [2021-11-13 01:31:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:31:42,436 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-11-13 01:31:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 01:31:42,437 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 [2021-11-13 01:31:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:31:42,438 INFO L225 Difference]: With dead ends: 41 [2021-11-13 01:31:42,438 INFO L226 Difference]: Without dead ends: 40 [2021-11-13 01:31:42,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=231, Invalid=1101, Unknown=0, NotChecked=0, Total=1332 [2021-11-13 01:31:42,440 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.35ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.70ms IncrementalHoareTripleChecker+Time [2021-11-13 01:31:42,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 19 Invalid, 121 Unknown, 0 Unchecked, 2.35ms Time], IncrementalHoareTripleChecker [19 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 127.70ms Time] [2021-11-13 01:31:42,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-13 01:31:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-13 01:31:42,449 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) [2021-11-13 01:31:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-11-13 01:31:42,451 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 19 [2021-11-13 01:31:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:31:42,451 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-11-13 01:31:42,452 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) [2021-11-13 01:31:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-11-13 01:31:42,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 01:31:42,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:31:42,454 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1] [2021-11-13 01:31:42,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:31:42,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-13 01:31:42,668 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 01:31:42,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:31:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash 237862964, now seen corresponding path program 3 times [2021-11-13 01:31:42,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:31:42,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764141606] [2021-11-13 01:31:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:31:42,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:31:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:31:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:42,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:31:42,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764141606] [2021-11-13 01:31:42,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764141606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:31:42,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301451520] [2021-11-13 01:31:42,950 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 01:31:42,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:31:42,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:31:42,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:31:42,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 01:31:43,015 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 01:31:43,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 01:31:43,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-13 01:31:43,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:31:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:31:43,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:32:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:32:40,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301451520] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:32:40,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1311570023] [2021-11-13 01:32:40,908 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-13 01:32:40,908 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:32:40,908 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:32:40,909 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:32:40,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:32:40,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,914 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:32:40,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-13 01:32:40,916 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 01:32:40,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-13 01:32:40,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-13 01:32:40,921 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 10=[|v_#valid_12|]} [2021-11-13 01:32:40,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:32:40,928 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 [2021-11-13 01:32:40,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:32:40,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 01:32:40,930 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 01:32:40,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:40,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:32:40,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:32:40,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:32:40,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 01:32:40,944 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 [2021-11-13 01:32:40,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:32:40,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 01:32:40,948 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 01:32:40,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:40,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 01:32:40,955 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 01:32:40,955 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-13 01:32:40,961 INFO L180 QuantifierPusher]: treesize reduction 16, result has 84.0 percent of original size [2021-11-13 01:32:40,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-13 01:32:40,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-13 01:32:40,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-13 01:32:40,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:40,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-13 01:32:40,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:40,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:41,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-11-13 01:32:41,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:41,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-13 01:32:41,044 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:41,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-13 01:32:41,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,094 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:32:41,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:32:41,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:41,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:32:41,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:41,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:32:41,110 INFO L180 QuantifierPusher]: treesize reduction 24, result has 66.7 percent of original size [2021-11-13 01:32:41,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-13 01:32:41,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 01:32:41,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-13 01:32:41,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:32:41,156 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:32:42,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 01:32:42,659 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:32:42,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 17] total 47 [2021-11-13 01:32:42,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405124328] [2021-11-13 01:32:42,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 01:32:42,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-13 01:32:42,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:32:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-13 01:32:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=2482, Unknown=20, NotChecked=0, Total=2862 [2021-11-13 01:32:42,664 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) [2021-11-13 01:32:45,007 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~x~0#1| (- 1)))) (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| (- 1))) (.cse2 (* 2 |c_ULTIMATE.start_main_~y~0#1|)) (.cse3 (+ |c_ULTIMATE.start_main_#t~post6#1| 1)) (.cse23 (+ (div (+ .cse1 2147483639) 2) 1))) (and (<= |c_ULTIMATE.start_main_~y~0#1| (div (+ (- 1) (div (+ .cse0 .cse1 2147483639) 2)) 2)) (<= (+ .cse2 |c_ULTIMATE.start_main_~x~0#1|) 2147483646) (<= .cse3 (div (+ .cse1 2147483646) 2)) (forall ((|aux_div_v_ULTIMATE.start_main_~x~0#1_55_70| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| Int) (|aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| Int) (|aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| Int) (|aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| Int)) (let ((.cse9 (* 2 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|))) (let ((.cse8 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_55_70|)) (.cse12 (* 4 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse6 (* 5 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401|)) (.cse5 (+ .cse9 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse4 (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67|)) (.cse10 (* 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse11 (* 4 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse7 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse13 (* 5 |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|))) (or (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| (+ |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| 1)) (<= (+ .cse4 2) .cse5) (<= 0 (+ 9 .cse6 .cse7 .cse8 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (< |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| .cse6 .cse7 17 .cse8) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 1) (div (+ (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| (- 5)) 2147483630) 2)) (<= 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| 1) |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ (div (+ (* |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 4) (* |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| (- 2)) 4 (* |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 2)) 4) 1)) (<= (+ .cse9 |c_ULTIMATE.start_main_#t~post6#1| |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| |aux_div_v_ULTIMATE.start_main_~x~0#1_55_70| 10) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1|) (+ 2147483643 .cse8)) (<= (+ .cse10 4 .cse11) (+ .cse12 .cse6 (* 5 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) .cse8)) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| 1)) (<= (+ .cse12 7 .cse6 .cse13 .cse8) (+ .cse10 .cse11)) (<= (+ .cse12 |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1| .cse6 .cse13) (+ 2147483638 .cse10 .cse11)) (<= (+ |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| 1) |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) (<= (+ 2 |c_ULTIMATE.start_main_#t~post6#1|) |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (< .cse5 .cse4) (<= |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 15 .cse10 .cse11) (+ .cse7 .cse13)))))) (forall ((|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| Int) (|aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| Int) (|aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| Int) (|aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| Int)) (let ((.cse18 (* 2 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|))) (let ((.cse17 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse21 (* 5 |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|)) (.cse15 (+ .cse18 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse14 (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67|)) (.cse19 (* 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse20 (* 4 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse22 (* 4 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse16 (* 5 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401|))) (or (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| (+ |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| 1)) (<= (+ .cse14 2) .cse15) (< |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 0) (<= 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| 1) |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ (div (+ (* |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 4) (* |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| (- 2)) 4 (* |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 2)) 4) 1)) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1| .cse16 .cse17) 2147483630) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| 1)) (<= (+ .cse18 (div (+ (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) 2147483646) (- 2)) 9 |c_ULTIMATE.start_main_#t~post6#1| |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) 0) (<= (+ 14 |c_ULTIMATE.start_main_#t~post6#1| .cse19 .cse20) (+ .cse17 .cse21)) (<= (+ |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| 1) |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= 2147483636 (+ |c_ULTIMATE.start_main_~x~0#1| .cse16 .cse17 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (<= (+ .cse22 |c_ULTIMATE.start_main_~x~0#1| .cse16 .cse21) (+ .cse19 2147483639 .cse20)) (< .cse15 .cse14) (<= (+ 2147483649 .cse19 .cse20) (+ .cse22 |c_ULTIMATE.start_main_~x~0#1| .cse16 (* 5 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|))) (<= |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 0))))) (<= |c_ULTIMATE.start_main_~y~0#1| (div (+ .cse0 2147483644 .cse1) 2)) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1|) 2147483646) (<= |c_ULTIMATE.start_main_#t~post6#1| (div (+ (* |c_ULTIMATE.start_main_#t~post6#1| (- 1)) .cse1 2147483641) 2)) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63| Int)) (or (<= (+ (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63|) 1) (div (+ (* |c_ULTIMATE.start_main_#t~post6#1| (- 1)) (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) 2147483634) 2)) (<= (div (+ |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63| 5) (- 2147483637)) (- 2)) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63|))) (<= .cse2 .cse23) (<= .cse3 (div .cse23 2)) (<= (+ |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|) 2147483647)))) is different from false [2021-11-13 01:32:47,022 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post6#1| 1)) (.cse1 (* |c_ULTIMATE.start_main_~x~0#1| (- 1)))) (and (<= .cse0 (div (+ .cse1 2147483646) 2)) (forall ((|aux_div_v_ULTIMATE.start_main_~x~0#1_55_70| Int) (|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| Int) (|aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| Int) (|aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| Int) (|aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| Int)) (let ((.cse7 (* 2 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|))) (let ((.cse6 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_55_70|)) (.cse10 (* 4 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse4 (* 5 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401|)) (.cse3 (+ .cse7 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse2 (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67|)) (.cse8 (* 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse9 (* 4 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse5 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse11 (* 5 |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|))) (or (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| (+ |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| 1)) (<= (+ .cse2 2) .cse3) (<= 0 (+ 9 .cse4 .cse5 .cse6 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (< |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| .cse4 .cse5 17 .cse6) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 1) (div (+ (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) (* |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| (- 5)) 2147483630) 2)) (<= 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| 1) |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ (div (+ (* |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 4) (* |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| (- 2)) 4 (* |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 2)) 4) 1)) (<= (+ .cse7 |c_ULTIMATE.start_main_#t~post6#1| |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| |aux_div_v_ULTIMATE.start_main_~x~0#1_55_70| 10) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1|) (+ 2147483643 .cse6)) (<= (+ .cse8 4 .cse9) (+ .cse10 .cse4 (* 5 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) .cse6)) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| 1)) (<= (+ .cse10 7 .cse4 .cse11 .cse6) (+ .cse8 .cse9)) (<= (+ .cse10 |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1| .cse4 .cse11) (+ 2147483638 .cse8 .cse9)) (<= (+ |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| 1) |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) (<= (+ 2 |c_ULTIMATE.start_main_#t~post6#1|) |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (< .cse3 .cse2) (<= |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 15 .cse8 .cse9) (+ .cse5 .cse11)))))) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1|) 2147483646) (forall ((|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| Int) (|aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| Int) (|aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| Int) (|aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| Int)) (let ((.cse17 (* 2 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|))) (let ((.cse14 (+ (div (+ (* |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 4) (* |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| (- 2)) 4 (* |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 2)) 4) 1)) (.cse16 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse20 (* 5 |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|)) (.cse13 (+ .cse17 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse12 (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67|)) (.cse18 (* 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse19 (* 4 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse21 (* 4 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse15 (* 5 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401|))) (or (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| (+ |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| 1)) (<= (+ .cse12 2) .cse13) (< |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 0) (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| .cse14) (<= 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| 1) |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| .cse14) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1| .cse15 .cse16) 2147483630) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| 1)) (<= (+ .cse17 (div (+ (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) 2147483646) (- 2)) 9 |c_ULTIMATE.start_main_#t~post6#1| |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) 0) (<= (+ 14 |c_ULTIMATE.start_main_#t~post6#1| .cse18 .cse19) (+ .cse16 .cse20)) (<= (+ |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| 1) |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= 2147483636 (+ |c_ULTIMATE.start_main_~x~0#1| .cse15 .cse16 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (<= (+ .cse21 |c_ULTIMATE.start_main_~x~0#1| .cse15 .cse20) (+ .cse18 2147483639 .cse19)) (< .cse13 .cse12) (<= (+ 2147483649 .cse18 .cse19) (+ .cse21 |c_ULTIMATE.start_main_~x~0#1| .cse15 (* 5 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|))) (<= |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 0))))) (<= |c_ULTIMATE.start_main_#t~post6#1| (div (+ (* |c_ULTIMATE.start_main_#t~post6#1| (- 1)) .cse1 2147483641) 2)) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63| Int)) (or (<= (+ (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63|) 1) (div (+ (* |c_ULTIMATE.start_main_#t~post6#1| (- 1)) (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) 2147483634) 2)) (<= (div (+ |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63| 5) (- 2147483637)) (- 2)) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63|))) (<= .cse0 (div (+ (div (+ .cse1 2147483639) 2) 1) 2)))) is different from false [2021-11-13 01:32:57,609 WARN L227 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 124 DAG size of output: 114 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:33:37,781 WARN L227 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 106 DAG size of output: 100 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:33:39,793 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_#t~post6#1| 1)) (.cse1 (* |c_ULTIMATE.start_main_~x~0#1| (- 1)))) (and (<= .cse0 (div (+ .cse1 2147483646) 2)) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1|) 2147483646) (forall ((|aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| Int) (|aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| Int) (|aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| Int) (|aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| Int) (|aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| Int)) (let ((.cse7 (* 2 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|))) (let ((.cse4 (+ (div (+ (* |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 4) (* |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| (- 2)) 4 (* |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 2)) 4) 1)) (.cse6 (* 2 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse10 (* 5 |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|)) (.cse3 (+ .cse7 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse2 (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67|)) (.cse8 (* 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse9 (* 4 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (.cse11 (* 4 |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127|)) (.cse5 (* 5 |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401|))) (or (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| (+ |aux_div_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67| 1)) (<= (+ .cse2 2) .cse3) (< |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139| 0) (<= |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| .cse4) (<= 2 |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= (+ |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423| 1) |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283|) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| .cse4) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| |c_ULTIMATE.start_main_~x~0#1| .cse5 .cse6) 2147483630) (<= |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| (+ |aux_div_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401| 1)) (<= (+ .cse7 (div (+ (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) 2147483646) (- 2)) 9 |c_ULTIMATE.start_main_#t~post6#1| |aux_mod_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) 0) (<= (+ 14 |c_ULTIMATE.start_main_#t~post6#1| .cse8 .cse9) (+ .cse6 .cse10)) (<= (+ |aux_div_v_ULTIMATE.start_main_~y~0#1_42_283| 1) |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|) (<= 2147483636 (+ |c_ULTIMATE.start_main_~x~0#1| .cse5 .cse6 |aux_div_aux_mod_aux_div_v_ULTIMATE.start_main_#t~post6#1_57_114_67_139|)) (<= (+ .cse11 |c_ULTIMATE.start_main_~x~0#1| .cse5 .cse10) (+ .cse8 2147483639 .cse9)) (< .cse3 .cse2) (<= (+ 2147483649 .cse8 .cse9) (+ .cse11 |c_ULTIMATE.start_main_~x~0#1| .cse5 (* 5 |aux_div_aux_mod_aux_mod_aux_mod_v_ULTIMATE.start_main_~y~0#1_42_283_117_401_423|))) (<= |aux_div_v_ULTIMATE.start_main_~x~0#1_54_127| 0))))) (<= |c_ULTIMATE.start_main_#t~post6#1| (div (+ (* |c_ULTIMATE.start_main_#t~post6#1| (- 1)) .cse1 2147483641) 2)) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63| Int)) (or (<= (+ (* 2 |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63|) 1) (div (+ (* |c_ULTIMATE.start_main_#t~post6#1| (- 1)) (* |c_ULTIMATE.start_main_~x~0#1| (- 1)) 2147483634) 2)) (<= (div (+ |c_ULTIMATE.start_main_~x~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63| 5) (- 2147483637)) (- 2)) 0) (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_41_105_63|))) (<= .cse0 (div (+ (div (+ .cse1 2147483639) 2) 1) 2)))) is different from false [2021-11-13 01:34:20,090 WARN L227 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 43 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 01:34:21,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:21,016 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2021-11-13 01:34:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-13 01:34:21,017 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 [2021-11-13 01:34:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:21,019 INFO L225 Difference]: With dead ends: 81 [2021-11-13 01:34:21,019 INFO L226 Difference]: Without dead ends: 80 [2021-11-13 01:34:21,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 79 SyntacticMatches, 7 SemanticMatches, 74 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 148.0s TimeCoverageRelationStatistics Valid=883, Invalid=4345, Unknown=40, NotChecked=432, Total=5700 [2021-11-13 01:34:21,024 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 99 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 184.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.84ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 180 IncrementalHoareTripleChecker+Unchecked, 239.41ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:21,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 38 Invalid, 393 Unknown, 0 Unchecked, 2.84ms Time], IncrementalHoareTripleChecker [68 Valid, 145 Invalid, 0 Unknown, 180 Unchecked, 239.41ms Time] [2021-11-13 01:34:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-13 01:34:21,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-13 01:34:21,041 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) [2021-11-13 01:34:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2021-11-13 01:34:21,043 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 39 [2021-11-13 01:34:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:21,044 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2021-11-13 01:34:21,044 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) [2021-11-13 01:34:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2021-11-13 01:34:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 01:34:21,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:21,048 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1] [2021-11-13 01:34:21,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:21,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-13 01:34:21,264 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)] === [2021-11-13 01:34:21,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1923662644, now seen corresponding path program 4 times [2021-11-13 01:34:21,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:34:21,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019024265] [2021-11-13 01:34:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:21,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:34:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:22,245 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:22,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:34:22,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019024265] [2021-11-13 01:34:22,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019024265] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:34:22,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925692779] [2021-11-13 01:34:22,246 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-13 01:34:22,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:34:22,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:34:22,247 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:34:22,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6b9fb8-0701-40f9-9ed0-845d42352994/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 01:34:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:22,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-13 01:34:22,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:24,491 INFO L328 TraceCheckSpWp]: Computing backward predicates...