./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_password_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_password_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh --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 3cb77685c99da394e56759788276300560cc521e5b9b98850714a1baff20c383 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:11:16,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:11:16,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:11:16,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:11:16,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:11:16,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:11:16,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:11:16,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:11:16,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:11:16,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:11:16,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:11:16,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:11:16,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:11:16,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:11:16,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:11:16,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:11:16,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:11:16,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:11:16,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:11:16,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:11:16,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:11:16,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:11:16,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:11:16,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:11:16,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:11:16,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:11:16,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:11:16,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:11:16,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:11:16,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:11:16,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:11:16,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:11:16,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:11:16,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:11:16,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:11:16,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:11:16,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:11:16,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:11:16,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:11:16,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:11:16,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:11:16,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 15:11:16,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:11:16,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:11:16,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:11:16,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:11:16,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:11:16,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:11:16,910 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:11:16,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:11:16,910 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:11:16,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:11:16,911 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:11:16,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:11:16,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:11:16,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:11:16,911 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:11:16,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:11:16,911 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:11:16,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:11:16,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:11:16,912 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:11:16,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:11:16,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:11:16,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:11:16,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:11:16,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:11:16,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:11:16,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:11:16,914 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:11:16,914 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:11:16,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:11:16,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:11:16,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:11:16,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:11:16,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:11:16,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:11:16,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:11:16,915 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:11:16,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:11:16,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:11:16,915 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:11:16,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:11:16,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:11:16,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:11:16,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cb77685c99da394e56759788276300560cc521e5b9b98850714a1baff20c383 [2022-12-14 15:11:17,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:11:17,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:11:17,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:11:17,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:11:17,140 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:11:17,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-examples/standard_password_ground.i [2022-12-14 15:11:19,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:11:19,869 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:11:19,870 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/sv-benchmarks/c/array-examples/standard_password_ground.i [2022-12-14 15:11:19,874 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/data/320d9efdd/086698e90d6e427f937545de9279bc7f/FLAG5bc3275d7 [2022-12-14 15:11:19,885 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/data/320d9efdd/086698e90d6e427f937545de9279bc7f [2022-12-14 15:11:19,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:11:19,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:11:19,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:11:19,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:11:19,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:11:19,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:11:19" (1/1) ... [2022-12-14 15:11:19,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46eaf35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:19, skipping insertion in model container [2022-12-14 15:11:19,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:11:19" (1/1) ... [2022-12-14 15:11:19,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:11:19,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:11:20,040 WARN L237 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_438a7669-fd6c-46dd-a2d3-47e9465fca55/sv-benchmarks/c/array-examples/standard_password_ground.i[817,830] [2022-12-14 15:11:20,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:11:20,061 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:11:20,072 WARN L237 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_438a7669-fd6c-46dd-a2d3-47e9465fca55/sv-benchmarks/c/array-examples/standard_password_ground.i[817,830] [2022-12-14 15:11:20,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:11:20,091 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:11:20,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20 WrapperNode [2022-12-14 15:11:20,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:11:20,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:11:20,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:11:20,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:11:20,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,118 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-12-14 15:11:20,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:11:20,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:11:20,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:11:20,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:11:20,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:11:20,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:11:20,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:11:20,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:11:20,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (1/1) ... [2022-12-14 15:11:20,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:11:20,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:20,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:11:20,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:11:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:11:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:11:20,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:11:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:11:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:11:20,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:11:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:11:20,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:11:20,253 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:11:20,255 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:11:20,375 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:11:20,432 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:11:20,433 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 15:11:20,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:11:20 BoogieIcfgContainer [2022-12-14 15:11:20,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:11:20,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:11:20,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:11:20,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:11:20,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:11:19" (1/3) ... [2022-12-14 15:11:20,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c57d571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:11:20, skipping insertion in model container [2022-12-14 15:11:20,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:11:20" (2/3) ... [2022-12-14 15:11:20,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c57d571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:11:20, skipping insertion in model container [2022-12-14 15:11:20,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:11:20" (3/3) ... [2022-12-14 15:11:20,446 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_password_ground.i [2022-12-14 15:11:20,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:11:20,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 15:11:20,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:11:20,500 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c82673f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:11:20,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 15:11:20,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 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) [2022-12-14 15:11:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:11:20,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:20,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:11:20,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash 111179, now seen corresponding path program 1 times [2022-12-14 15:11:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:20,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334725453] [2022-12-14 15:11:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:20,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:11:20,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:20,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334725453] [2022-12-14 15:11:20,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334725453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:20,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:11:20,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:11:20,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923915383] [2022-12-14 15:11:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:20,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:11:20,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:11:20,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:11:20,805 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 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) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:11:20,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:20,871 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-12-14 15:11:20,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:11:20,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 15:11:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:20,881 INFO L225 Difference]: With dead ends: 42 [2022-12-14 15:11:20,881 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 15:11:20,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:11:20,888 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:20,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 15:11:20,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2022-12-14 15:11:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 20 states have internal predecessors, (23), 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) [2022-12-14 15:11:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-12-14 15:11:20,920 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 3 [2022-12-14 15:11:20,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:20,920 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-12-14 15:11:20,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:11:20,921 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-12-14 15:11:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:11:20,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:20,921 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 15:11:20,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:11:20,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:20,922 INFO L85 PathProgramCache]: Analyzing trace with hash -982785954, now seen corresponding path program 1 times [2022-12-14 15:11:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:20,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487689380] [2022-12-14 15:11:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:20,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:11:21,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:21,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487689380] [2022-12-14 15:11:21,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487689380] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:21,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792812854] [2022-12-14 15:11:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:21,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:21,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:21,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:21,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:11:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:21,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:11:21,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:11:21,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:11:21,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792812854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:21,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:11:21,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 15:11:21,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402872312] [2022-12-14 15:11:21,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:21,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:11:21,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:21,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:11:21,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:11:21,172 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-12-14 15:11:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:21,222 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-12-14 15:11:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:11:21,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2022-12-14 15:11:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:21,223 INFO L225 Difference]: With dead ends: 25 [2022-12-14 15:11:21,224 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 15:11:21,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:11:21,225 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 24 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:21,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 33 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 15:11:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-12-14 15:11:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 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) [2022-12-14 15:11:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-12-14 15:11:21,228 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 6 [2022-12-14 15:11:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:21,228 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-12-14 15:11:21,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2022-12-14 15:11:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-12-14 15:11:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:11:21,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:21,229 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-12-14 15:11:21,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:11:21,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:21,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:21,433 INFO L85 PathProgramCache]: Analyzing trace with hash -401593456, now seen corresponding path program 1 times [2022-12-14 15:11:21,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:21,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749655549] [2022-12-14 15:11:21,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:21,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:11:21,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:21,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749655549] [2022-12-14 15:11:21,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749655549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:21,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:11:21,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:11:21,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650415912] [2022-12-14 15:11:21,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:21,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:11:21,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:11:21,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:11:21,595 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-12-14 15:11:21,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:21,613 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-12-14 15:11:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:11:21,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-12-14 15:11:21,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:21,614 INFO L225 Difference]: With dead ends: 20 [2022-12-14 15:11:21,614 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 15:11:21,615 INFO L412 NwaCegarLoop]: 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 [2022-12-14 15:11:21,616 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:21,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:21,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 15:11:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-12-14 15:11:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-12-14 15:11:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 15:11:21,619 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2022-12-14 15:11:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:21,620 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 15:11:21,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-12-14 15:11:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 15:11:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:11:21,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:21,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:21,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:11:21,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:21,621 INFO L85 PathProgramCache]: Analyzing trace with hash -401588103, now seen corresponding path program 1 times [2022-12-14 15:11:21,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:21,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143391238] [2022-12-14 15:11:21,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:11:21,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:21,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143391238] [2022-12-14 15:11:21,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143391238] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:21,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680942398] [2022-12-14 15:11:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:21,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:21,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:21,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:21,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:11:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:21,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:11:21,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:11:21,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:11:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:11:21,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680942398] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:11:21,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1832589042] [2022-12-14 15:11:21,777 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 15:11:21,777 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:11:21,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:11:21,783 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:11:21,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:11:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,873 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:11:21,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:11:21,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2022-12-14 15:11:21,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 15:11:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:21,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2022-12-14 15:11:22,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:22,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:22,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:22,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:22,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:22,199 INFO L321 Elim1Store]: treesize reduction 141, result has 7.2 percent of original size [2022-12-14 15:11:22,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 391 treesize of output 322 [2022-12-14 15:11:22,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:22,339 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:22,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:22,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:22,419 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:22,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:22,435 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:11:22,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1832589042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:22,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:11:22,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-12-14 15:11:22,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890577852] [2022-12-14 15:11:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:22,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:11:22,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:11:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:11:22,793 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) [2022-12-14 15:11:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:23,176 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-12-14 15:11:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:11:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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 [2022-12-14 15:11:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:23,177 INFO L225 Difference]: With dead ends: 23 [2022-12-14 15:11:23,177 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 15:11:23,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:11:23,179 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:23,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:11:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 15:11:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-12-14 15:11:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:11:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 15:11:23,183 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 7 [2022-12-14 15:11:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:23,183 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 15:11:23,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) [2022-12-14 15:11:23,183 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 15:11:23,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:11:23,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:23,184 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:23,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:11:23,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:23,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:23,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:23,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2067780372, now seen corresponding path program 1 times [2022-12-14 15:11:23,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:23,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882891644] [2022-12-14 15:11:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:23,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:11:23,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:23,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882891644] [2022-12-14 15:11:23,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882891644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:23,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691519872] [2022-12-14 15:11:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:23,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:23,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:23,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:23,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:11:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:23,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:11:23,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:11:23,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:11:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:11:23,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691519872] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:11:23,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1422552697] [2022-12-14 15:11:23,624 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:11:23,624 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:11:23,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:11:23,624 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:11:23,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:11:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,663 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:11:23,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:11:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2022-12-14 15:11:23,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 15:11:23,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2022-12-14 15:11:23,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:23,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:23,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:23,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:23,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:23,952 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-12-14 15:11:23,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 359 treesize of output 328 [2022-12-14 15:11:24,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:24,232 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:24,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:24,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:24,345 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:24,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:24,355 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:11:24,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1422552697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:24,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:11:24,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-12-14 15:11:24,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655694233] [2022-12-14 15:11:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:24,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:11:24,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:24,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:11:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:11:24,763 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-12-14 15:11:24,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:24,903 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 15:11:24,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:11:24,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 [2022-12-14 15:11:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:24,904 INFO L225 Difference]: With dead ends: 19 [2022-12-14 15:11:24,904 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 15:11:24,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-12-14 15:11:24,905 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:24,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:24,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 15:11:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 15:11:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-12-14 15:11:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 15:11:24,908 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2022-12-14 15:11:24,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:24,908 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 15:11:24,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-12-14 15:11:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 15:11:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:11:24,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:24,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:24,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:11:25,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:25,111 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:25,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1432879261, now seen corresponding path program 1 times [2022-12-14 15:11:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:25,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086412620] [2022-12-14 15:11:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:25,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:11:25,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:25,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086412620] [2022-12-14 15:11:25,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086412620] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:25,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673546111] [2022-12-14 15:11:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:25,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:25,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:25,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:25,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:11:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:25,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:11:25,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:11:25,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:11:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:11:25,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673546111] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:11:25,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284480909] [2022-12-14 15:11:25,264 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 15:11:25,264 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:11:25,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:11:25,264 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:11:25,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:11:25,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,295 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 15:11:25,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 15:11:25,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,326 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:11:25,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:11:25,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 15:11:25,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2022-12-14 15:11:25,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:25,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,551 INFO L321 Elim1Store]: treesize reduction 333, result has 10.0 percent of original size [2022-12-14 15:11:25,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 379 treesize of output 347 [2022-12-14 15:11:25,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,844 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:25,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:25,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:25,964 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:25,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:25,975 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:11:26,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1284480909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:26,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:11:26,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 17 [2022-12-14 15:11:26,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199053159] [2022-12-14 15:11:26,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:26,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:11:26,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:11:26,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:11:26,356 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:11:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:26,505 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-12-14 15:11:26,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:11:26,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 15:11:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:26,506 INFO L225 Difference]: With dead ends: 20 [2022-12-14 15:11:26,506 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 15:11:26,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2022-12-14 15:11:26,507 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:26,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 15:11:26,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 15:11:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 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) [2022-12-14 15:11:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-14 15:11:26,509 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-14 15:11:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:26,509 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-14 15:11:26,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:11:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-14 15:11:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 15:11:26,510 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:26,510 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:26,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:11:26,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 15:11:26,711 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:26,713 INFO L85 PathProgramCache]: Analyzing trace with hash 773988487, now seen corresponding path program 1 times [2022-12-14 15:11:26,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:26,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722177382] [2022-12-14 15:11:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:26,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:11:26,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:26,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722177382] [2022-12-14 15:11:26,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722177382] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:26,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4462588] [2022-12-14 15:11:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:26,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:26,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:26,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:26,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:11:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:26,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:11:26,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:11:26,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:11:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:11:26,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4462588] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:11:26,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1212223106] [2022-12-14 15:11:26,851 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 15:11:26,851 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:11:26,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:11:26,852 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:11:26,852 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:11:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,885 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 15:11:26,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 15:11:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,919 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:11:26,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:11:26,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 15:11:26,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:26,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2022-12-14 15:11:27,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:27,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:27,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:27,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:27,150 INFO L321 Elim1Store]: treesize reduction 141, result has 7.2 percent of original size [2022-12-14 15:11:27,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 371 treesize of output 322 [2022-12-14 15:11:27,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:27,220 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:27,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:27,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:27,447 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:27,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:27,459 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:11:27,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1212223106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:27,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:11:27,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 17 [2022-12-14 15:11:27,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015179808] [2022-12-14 15:11:27,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:27,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:11:27,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:27,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:11:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:11:27,949 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2022-12-14 15:11:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:28,210 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-14 15:11:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:11:28,210 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) Word has length 15 [2022-12-14 15:11:28,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:28,211 INFO L225 Difference]: With dead ends: 18 [2022-12-14 15:11:28,211 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 15:11:28,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2022-12-14 15:11:28,211 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:28,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:11:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 15:11:28,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 15:11:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-12-14 15:11:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 15:11:28,214 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 15 [2022-12-14 15:11:28,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:28,214 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 15:11:28,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2022-12-14 15:11:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 15:11:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:11:28,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:28,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:28,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:11:28,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:28,417 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:28,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:28,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1776160581, now seen corresponding path program 1 times [2022-12-14 15:11:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:28,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678407242] [2022-12-14 15:11:28,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:11:28,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:28,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678407242] [2022-12-14 15:11:28,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678407242] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:28,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23947874] [2022-12-14 15:11:28,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:28,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:28,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:28,476 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:28,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:11:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:28,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:11:28,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:11:28,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:11:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:11:28,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23947874] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:11:28,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1197525241] [2022-12-14 15:11:28,554 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 15:11:28,555 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:11:28,555 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:11:28,555 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:11:28,555 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:11:28,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,584 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 15:11:28,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 15:11:28,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,612 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:11:28,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:11:28,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-12-14 15:11:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2022-12-14 15:11:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:28,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:28,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:11:28,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:28,824 INFO L321 Elim1Store]: treesize reduction 141, result has 7.2 percent of original size [2022-12-14 15:11:28,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 371 treesize of output 322 [2022-12-14 15:11:28,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:28,899 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:28,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:29,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:11:29,078 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 15:11:29,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 27 [2022-12-14 15:11:29,086 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:11:29,568 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '850#(and (<= 100000 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~#guess~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_#t~post7#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~#guess~0#1.base|) (= |ULTIMATE.start_main_~#password~0#1.offset| 0) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= |ULTIMATE.start_main_~result~0#1| 1) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#password~0#1.base|) (= |#NULL.base| 0))' at error location [2022-12-14 15:11:29,568 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:11:29,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:11:29,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-14 15:11:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221140598] [2022-12-14 15:11:29,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:11:29,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:11:29,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:11:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-12-14 15:11:29,569 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-12-14 15:11:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:29,610 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-12-14 15:11:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:11:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 16 [2022-12-14 15:11:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:29,611 INFO L225 Difference]: With dead ends: 37 [2022-12-14 15:11:29,611 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 15:11:29,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-12-14 15:11:29,612 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:29,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 31 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:29,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 15:11:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-12-14 15:11:29,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2022-12-14 15:11:29,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-12-14 15:11:29,615 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2022-12-14 15:11:29,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:29,615 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-12-14 15:11:29,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-12-14 15:11:29,615 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-12-14 15:11:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:11:29,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:11:29,616 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:29,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:11:29,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:29,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:11:29,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:11:29,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1049764251, now seen corresponding path program 2 times [2022-12-14 15:11:29,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:11:29,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168454470] [2022-12-14 15:11:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:11:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:11:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:11:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 15:11:29,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:11:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168454470] [2022-12-14 15:11:29,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168454470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:11:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947810344] [2022-12-14 15:11:29,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:11:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:11:29,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:11:29,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:11:29,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 15:11:29,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:11:29,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:11:29,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:11:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 15:11:29,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:11:29,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947810344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:11:29,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:11:29,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-14 15:11:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018790738] [2022-12-14 15:11:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:11:29,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:11:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:11:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:11:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:11:29,937 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-14 15:11:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:11:29,951 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-12-14 15:11:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:11:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 22 [2022-12-14 15:11:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:11:29,951 INFO L225 Difference]: With dead ends: 23 [2022-12-14 15:11:29,951 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:11:29,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:11:29,952 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:11:29,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:11:29,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:11:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:11:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:11:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:11:29,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-12-14 15:11:29,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:11:29,953 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:11:29,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-12-14 15:11:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:11:29,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:11:29,954 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 15:11:29,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 15:11:29,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 15:11:29,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 15:11:29,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 15:11:29,955 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 15:11:29,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:11:30,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:11:30,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:11:30,422 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-12-14 15:11:30,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 15:11:30,423 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-12-14 15:11:30,423 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 37) the Hoare annotation is: (and (let ((.cse0 (<= 100000 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (= |ULTIMATE.start_main_~#guess~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#guess~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#password~0#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~x~0#1| 0) (not (= |ULTIMATE.start_main_~result~0#1| 0))) (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) .cse1 (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3 (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|)))) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~result~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#password~0#1.base|) (= |#NULL.base| 0)) [2022-12-14 15:11:30,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-12-14 15:11:30,423 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 15:11:30,423 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L895 garLoopResultBuilder]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~#guess~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~#guess~0#1.base|) (= |ULTIMATE.start_main_~#password~0#1.offset| 0) (<= |ULTIMATE.start_main_~result~0#1| 1) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#password~0#1.base|) (= |#NULL.base| 0)) [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point L28-6(lines 16 40) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L902 garLoopResultBuilder]: At program point L33(lines 33 38) the Hoare annotation is: true [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 15:11:30,424 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-12-14 15:11:30,425 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-12-14 15:11:30,425 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~result~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~#guess~0#1.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~#password~0#1.offset| 0)) (.cse3 (= |#NULL.offset| 0)) (.cse5 (= |#NULL.base| 0))) (or (let ((.cse4 (select |#memory_int| 1))) (and (< |#StackHeapBarrier| |ULTIMATE.start_main_~#password~0#1.base|) .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) (= 2 (select |#length| 1)) (= (select |#valid| |ULTIMATE.start_main_~#guess~0#1.base|) 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#guess~0#1.base|) .cse1 (= (select |#valid| 1) 1) .cse2 (not (= |ULTIMATE.start_main_~#password~0#1.base| |ULTIMATE.start_main_~#guess~0#1.base|)) (= (select |#valid| 0) 0) (= (select |#length| |ULTIMATE.start_main_~#guess~0#1.base|) 400000) (= (select |#length| |ULTIMATE.start_main_~#password~0#1.base|) 400000) (= (select |#valid| 2) 1) .cse3 (= (select .cse4 0) 48) (= 27 (select |#length| 2)) (= (select .cse4 1) 0) (= (select |#valid| |ULTIMATE.start_main_~#password~0#1.base|) 1) (< 0 |#StackHeapBarrier|) .cse5)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 (<= 0 |ULTIMATE.start_main_~#guess~0#1.base|) .cse2 .cse3 (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#password~0#1.base|) .cse5))) [2022-12-14 15:11:30,428 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:11:30,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:11:30,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:11:30 BoogieIcfgContainer [2022-12-14 15:11:30,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:11:30,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:11:30,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:11:30,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:11:30,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:11:20" (3/4) ... [2022-12-14 15:11:30,450 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:11:30,457 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-14 15:11:30,458 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 15:11:30,458 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 15:11:30,458 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:11:30,474 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((100000 <= i && guess == 0) && 0 <= guess) && password == 0) && x == 0) && !(result == 0)) || (((((((((100000 <= i && x <= 2147483647) && guess == 0) && cond <= 1) && 1 <= x) && 0 <= guess) && password == 0) && \old(cond) <= 1) && 0 <= cond) && 0 <= \old(cond))) && #NULL == 0) && result <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= password) && #NULL == 0 [2022-12-14 15:11:30,483 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:11:30,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:11:30,483 INFO L158 Benchmark]: Toolchain (without parser) took 10595.55ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 89.1MB in the beginning and 136.0MB in the end (delta: -47.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,483 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:11:30,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.79ms. Allocated memory is still 127.9MB. Free memory was 89.1MB in the beginning and 78.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.04ms. Allocated memory is still 127.9MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,484 INFO L158 Benchmark]: Boogie Preprocessor took 19.47ms. Allocated memory is still 127.9MB. Free memory was 77.2MB in the beginning and 75.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,485 INFO L158 Benchmark]: RCFGBuilder took 296.08ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 75.8MB in the beginning and 145.0MB in the end (delta: -69.2MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,485 INFO L158 Benchmark]: TraceAbstraction took 10004.20ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 139.2MB in the end (delta: 8.5MB). Peak memory consumption was 104.7MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,485 INFO L158 Benchmark]: Witness Printer took 36.59ms. Allocated memory is still 176.2MB. Free memory was 139.2MB in the beginning and 136.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:11:30,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.79ms. Allocated memory is still 127.9MB. Free memory was 89.1MB in the beginning and 78.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.04ms. Allocated memory is still 127.9MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.47ms. Allocated memory is still 127.9MB. Free memory was 77.2MB in the beginning and 75.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.08ms. Allocated memory was 127.9MB in the beginning and 176.2MB in the end (delta: 48.2MB). Free memory was 75.8MB in the beginning and 145.0MB in the end (delta: -69.2MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10004.20ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 139.2MB in the end (delta: 8.5MB). Peak memory consumption was 104.7MB. Max. memory is 16.1GB. * Witness Printer took 36.59ms. Allocated memory is still 176.2MB. Free memory was 139.2MB in the beginning and 136.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 194 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 54 mSDtfsCounter, 383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 134 SyntacticMatches, 7 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=8, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 16 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 223 HoareAnnotationTreeSize, 4 FomulaSimplifications, 39 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 668 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 186 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 385 SizeOfPredicates, 8 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 66/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 35, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 106, TOOLS_POST_TIME: 2.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 106, TOOLS_QUANTIFIERELIM_TIME: 2.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 198, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 13, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 21, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 35, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 1.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 21, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 457, DAG_COMPRESSION_RETAINED_NODES: 137, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((((((((((((((((unknown-#StackHeapBarrier-unknown < password && result == 1) && i == 0) && 2 == unknown-#length-unknown[1]) && \valid[guess] == 1) && unknown-#StackHeapBarrier-unknown < guess) && guess == 0) && \valid[1] == 1) && password == 0) && !(password == guess)) && \valid[0] == 0) && unknown-#length-unknown[guess] == 400000) && unknown-#length-unknown[password] == 400000) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && \valid[password] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((result == 1 && 1 <= i) && i <= 2147483647) && guess == 0) && 0 <= guess) && password == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= password) && #NULL == 0) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((100000 <= i && guess == 0) && 0 <= guess) && password == 0) && x == 0) && !(result == 0)) || (((((((((100000 <= i && x <= 2147483647) && guess == 0) && cond <= 1) && 1 <= x) && 0 <= guess) && password == 0) && \old(cond) <= 1) && 0 <= cond) && 0 <= \old(cond))) && #NULL == 0) && result <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= password) && #NULL == 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((#NULL <= 0 && guess == 0) && 0 <= i) && 0 <= guess) && password == 0) && result <= 1) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= password) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 15:11:30,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_438a7669-fd6c-46dd-a2d3-47e9465fca55/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE