./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 6b4ec56b 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_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_password_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9 --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-6b4ec56 [2022-11-20 20:58:34,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:58:34,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:58:35,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:58:35,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:58:35,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:58:35,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:58:35,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:58:35,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:58:35,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:58:35,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:58:35,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:58:35,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:58:35,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:58:35,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:58:35,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:58:35,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:58:35,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:58:35,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:58:35,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:58:35,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:58:35,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:58:35,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:58:35,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:58:35,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:58:35,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:58:35,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:58:35,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:58:35,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:58:35,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:58:35,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:58:35,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:58:35,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:58:35,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:58:35,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:58:35,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:58:35,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:58:35,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:58:35,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:58:35,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:58:35,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:58:35,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 20:58:35,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:58:35,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:58:35,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:58:35,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:58:35,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:58:35,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:58:35,134 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:58:35,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:58:35,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:58:35,135 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:58:35,136 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:58:35,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:58:35,136 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:58:35,136 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:58:35,137 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:58:35,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:58:35,137 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:58:35,137 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:58:35,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:58:35,138 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:58:35,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:58:35,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:58:35,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:58:35,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:58:35,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:58:35,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:58:35,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:58:35,140 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:58:35,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:58:35,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:58:35,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:58:35,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:58:35,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:58:35,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:58:35,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:58:35,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:58:35,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:58:35,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:58:35,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:58:35,143 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:58:35,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:58:35,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:58:35,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:58:35,155 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_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cb77685c99da394e56759788276300560cc521e5b9b98850714a1baff20c383 [2022-11-20 20:58:35,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:58:35,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:58:35,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:58:35,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:58:35,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:58:35,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/array-examples/standard_password_ground.i [2022-11-20 20:58:38,448 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:58:38,635 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:58:38,636 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/sv-benchmarks/c/array-examples/standard_password_ground.i [2022-11-20 20:58:38,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/data/584b59850/aea9c180ab1842759f262bff3c89880e/FLAG95176df8e [2022-11-20 20:58:38,658 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/data/584b59850/aea9c180ab1842759f262bff3c89880e [2022-11-20 20:58:38,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:58:38,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:58:38,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:58:38,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:58:38,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:58:38,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc17a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38, skipping insertion in model container [2022-11-20 20:58:38,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:58:38,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:58:38,882 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_03c47946-9480-4480-b439-8c94a1a08bbb/sv-benchmarks/c/array-examples/standard_password_ground.i[817,830] [2022-11-20 20:58:38,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:58:38,904 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:58:38,916 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_03c47946-9480-4480-b439-8c94a1a08bbb/sv-benchmarks/c/array-examples/standard_password_ground.i[817,830] [2022-11-20 20:58:38,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:58:38,937 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:58:38,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38 WrapperNode [2022-11-20 20:58:38,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:58:38,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:58:38,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:58:38,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:58:38,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,974 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-11-20 20:58:38,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:58:38,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:58:38,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:58:38,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:58:38,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:38,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:39,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:58:39,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:58:39,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:58:39,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:58:39,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (1/1) ... [2022-11-20 20:58:39,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:58:39,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:39,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:58:39,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:58:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:58:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:58:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:58:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:58:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:58:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:58:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:58:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:58:39,170 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:58:39,172 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:58:39,441 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:58:39,495 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:58:39,496 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 20:58:39,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:58:39 BoogieIcfgContainer [2022-11-20 20:58:39,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:58:39,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:58:39,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:58:39,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:58:39,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:58:38" (1/3) ... [2022-11-20 20:58:39,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384636d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:58:39, skipping insertion in model container [2022-11-20 20:58:39,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:58:38" (2/3) ... [2022-11-20 20:58:39,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384636d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:58:39, skipping insertion in model container [2022-11-20 20:58:39,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:58:39" (3/3) ... [2022-11-20 20:58:39,508 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_password_ground.i [2022-11-20 20:58:39,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:58:39,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 20:58:39,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:58:39,610 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;@53119a53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:58:39,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 20:58:39,615 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) [2022-11-20 20:58:39,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 20:58:39,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:39,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 20:58:39,623 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)] === [2022-11-20 20:58:39,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash 110187, now seen corresponding path program 1 times [2022-11-20 20:58:39,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:39,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993937364] [2022-11-20 20:58:39,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:39,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:58:40,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:40,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993937364] [2022-11-20 20:58:40,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993937364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:40,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:58:40,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:58:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307034715] [2022-11-20 20:58:40,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:40,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:58:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:40,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:58:40,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:58:40,068 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) [2022-11-20 20:58:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:40,161 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-11-20 20:58:40,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:58:40,164 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 [2022-11-20 20:58:40,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:40,172 INFO L225 Difference]: With dead ends: 42 [2022-11-20 20:58:40,172 INFO L226 Difference]: Without dead ends: 25 [2022-11-20 20:58:40,175 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 [2022-11-20 20:58:40,178 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:40,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:58:40,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-20 20:58:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2022-11-20 20:58:40,211 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) [2022-11-20 20:58:40,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-20 20:58:40,213 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 3 [2022-11-20 20:58:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:40,213 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-20 20:58:40,213 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) [2022-11-20 20:58:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-20 20:58:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 20:58:40,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:40,214 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-20 20:58:40,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:58:40,215 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)] === [2022-11-20 20:58:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:40,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1012338657, now seen corresponding path program 1 times [2022-11-20 20:58:40,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:40,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124504669] [2022-11-20 20:58:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:40,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:58:40,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:40,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124504669] [2022-11-20 20:58:40,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124504669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:40,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:58:40,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:58:40,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509361354] [2022-11-20 20:58:40,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:40,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:58:40,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:58:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:58:40,354 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:40,377 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-20 20:58:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:58:40,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 20:58:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:40,378 INFO L225 Difference]: With dead ends: 21 [2022-11-20 20:58:40,378 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 20:58:40,379 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 [2022-11-20 20:58:40,380 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:40,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:58:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 20:58:40,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-20 20:58:40,384 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) [2022-11-20 20:58:40,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-20 20:58:40,385 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 6 [2022-11-20 20:58:40,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:40,386 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-20 20:58:40,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-20 20:58:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:58:40,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:40,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-20 20:58:40,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:58:40,387 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)] === [2022-11-20 20:58:40,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1317727249, now seen corresponding path program 1 times [2022-11-20 20:58:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:40,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199913890] [2022-11-20 20:58:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:58:40,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:40,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199913890] [2022-11-20 20:58:40,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199913890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:40,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548119] [2022-11-20 20:58:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:40,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:40,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:40,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:40,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:58:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:40,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:58:40,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:58:40,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:58:40,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:40,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:58:40,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2022-11-20 20:58:40,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533771530] [2022-11-20 20:58:40,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:40,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:58:40,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:40,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:58:40,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:58:40,749 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:40,784 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-20 20:58:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:58:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 20:58:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:40,786 INFO L225 Difference]: With dead ends: 20 [2022-11-20 20:58:40,786 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 20:58:40,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:58:40,788 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:40,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:58:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 20:58:40,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-20 20:58:40,792 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) [2022-11-20 20:58:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-20 20:58:40,793 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2022-11-20 20:58:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:40,793 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-20 20:58:40,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:40,794 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-20 20:58:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:58:40,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:40,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:40,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:58:40,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:41,000 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)] === [2022-11-20 20:58:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1317720935, now seen corresponding path program 1 times [2022-11-20 20:58:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:41,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008485819] [2022-11-20 20:58:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:41,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:58:41,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:41,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008485819] [2022-11-20 20:58:41,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008485819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:41,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416411118] [2022-11-20 20:58:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:41,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:41,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:41,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:41,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:58:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:41,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:58:41,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:58:41,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:58:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:58:41,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416411118] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:58:41,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1455245139] [2022-11-20 20:58:41,241 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-20 20:58:41,241 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:58:41,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:58:41,250 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:58:41,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:58:41,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,400 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-11-20 20:58:41,401 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 [2022-11-20 20:58:41,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,463 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-20 20:58:41,463 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 [2022-11-20 20:58:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,525 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 [2022-11-20 20:58:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:41,636 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 [2022-11-20 20:58:42,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:42,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:42,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:42,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:42,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:42,121 INFO L321 Elim1Store]: treesize reduction 141, result has 7.2 percent of original size [2022-11-20 20:58:42,121 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 [2022-11-20 20:58:42,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:42,397 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:42,398 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 [2022-11-20 20:58:42,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:42,570 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:42,571 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 [2022-11-20 20:58:42,600 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:58:43,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1455245139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:43,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:58:43,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-11-20 20:58:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839170603] [2022-11-20 20:58:43,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:43,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:58:43,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:43,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:58:43,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:58:43,139 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) [2022-11-20 20:58:43,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:43,754 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-20 20:58:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:58:43,755 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 [2022-11-20 20:58:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:43,756 INFO L225 Difference]: With dead ends: 23 [2022-11-20 20:58:43,756 INFO L226 Difference]: Without dead ends: 21 [2022-11-20 20:58:43,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-11-20 20:58:43,757 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:43,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:58:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-20 20:58:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-11-20 20:58:43,762 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) [2022-11-20 20:58:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-20 20:58:43,763 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 7 [2022-11-20 20:58:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:43,763 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-20 20:58:43,764 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) [2022-11-20 20:58:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-20 20:58:43,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 20:58:43,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:43,764 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:43,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:58:43,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:43,965 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)] === [2022-11-20 20:58:43,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:43,966 INFO L85 PathProgramCache]: Analyzing trace with hash -223218956, now seen corresponding path program 1 times [2022-11-20 20:58:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:43,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032311351] [2022-11-20 20:58:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:43,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:58:44,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:44,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032311351] [2022-11-20 20:58:44,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032311351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:44,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999824573] [2022-11-20 20:58:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:44,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:44,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:44,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:44,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:58:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:44,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:58:44,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:58:44,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:58:44,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:58:44,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999824573] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:58:44,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [322971873] [2022-11-20 20:58:44,213 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-20 20:58:44,213 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:58:44,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:58:44,214 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:58:44,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:58:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,272 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-20 20:58:44,273 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 [2022-11-20 20:58:44,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,288 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 [2022-11-20 20:58:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,319 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 [2022-11-20 20:58:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,383 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 [2022-11-20 20:58:44,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:44,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:44,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:44,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:44,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:44,641 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-11-20 20:58:44,642 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 [2022-11-20 20:58:45,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:45,128 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:45,128 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 [2022-11-20 20:58:45,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:45,309 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:45,310 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 [2022-11-20 20:58:45,325 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:58:45,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [322971873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:45,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:58:45,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-11-20 20:58:45,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697981372] [2022-11-20 20:58:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:45,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:58:45,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:45,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:58:45,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:58:45,895 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) [2022-11-20 20:58:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:46,136 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-20 20:58:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:58:46,141 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 [2022-11-20 20:58:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:46,142 INFO L225 Difference]: With dead ends: 19 [2022-11-20 20:58:46,142 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 20:58:46,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-20 20:58:46,143 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:46,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:58:46,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 20:58:46,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 20:58:46,148 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) [2022-11-20 20:58:46,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-20 20:58:46,148 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2022-11-20 20:58:46,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:46,149 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-20 20:58:46,149 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) [2022-11-20 20:58:46,149 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-20 20:58:46,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 20:58:46,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:46,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:46,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 20:58:46,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:46,354 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)] === [2022-11-20 20:58:46,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash 234989379, now seen corresponding path program 1 times [2022-11-20 20:58:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:46,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965371900] [2022-11-20 20:58:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:46,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:58:46,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:46,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965371900] [2022-11-20 20:58:46,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965371900] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:46,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912448026] [2022-11-20 20:58:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:46,447 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:46,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 20:58:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:46,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:58:46,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:46,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:58:46,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:58:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:58:46,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912448026] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:58:46,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1704117975] [2022-11-20 20:58:46,579 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-20 20:58:46,579 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:58:46,580 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:58:46,580 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:58:46,580 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:58:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,638 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-20 20:58:46,638 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 [2022-11-20 20:58:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,658 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 [2022-11-20 20:58:46,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,687 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 [2022-11-20 20:58:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,743 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 [2022-11-20 20:58:46,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:46,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:46,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:46,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:46,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:47,045 INFO L321 Elim1Store]: treesize reduction 333, result has 10.0 percent of original size [2022-11-20 20:58:47,046 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 [2022-11-20 20:58:47,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:47,535 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:47,536 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 [2022-11-20 20:58:47,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:47,719 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:47,720 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 [2022-11-20 20:58:47,734 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:58:48,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1704117975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:48,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:58:48,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 17 [2022-11-20 20:58:48,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755764477] [2022-11-20 20:58:48,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:48,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 20:58:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:48,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 20:58:48,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 20:58:48,391 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) [2022-11-20 20:58:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:48,671 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-20 20:58:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:58:48,674 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 [2022-11-20 20:58:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:48,675 INFO L225 Difference]: With dead ends: 20 [2022-11-20 20:58:48,675 INFO L226 Difference]: Without dead ends: 18 [2022-11-20 20:58:48,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2022-11-20 20:58:48,676 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:48,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 11 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:58:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-20 20:58:48,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 20:58:48,681 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) [2022-11-20 20:58:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-20 20:58:48,682 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-20 20:58:48,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:48,682 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-20 20:58:48,682 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) [2022-11-20 20:58:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-20 20:58:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 20:58:48,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:48,687 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:48,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 20:58:48,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 20:58:48,893 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)] === [2022-11-20 20:58:48,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:48,894 INFO L85 PathProgramCache]: Analyzing trace with hash -228004697, now seen corresponding path program 1 times [2022-11-20 20:58:48,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:48,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743017287] [2022-11-20 20:58:48,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:48,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:58:48,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743017287] [2022-11-20 20:58:48,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743017287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220933447] [2022-11-20 20:58:48,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:48,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:48,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:48,980 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:49,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 20:58:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:49,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:58:49,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:58:49,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:58:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:58:49,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220933447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:58:49,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1450913797] [2022-11-20 20:58:49,108 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-20 20:58:49,108 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:58:49,109 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:58:49,109 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:58:49,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:58:49,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,168 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-11-20 20:58:49,168 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 [2022-11-20 20:58:49,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,217 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-20 20:58:49,218 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 [2022-11-20 20:58:49,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,245 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 [2022-11-20 20:58:49,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,292 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 [2022-11-20 20:58:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:49,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:49,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:49,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:49,502 INFO L321 Elim1Store]: treesize reduction 141, result has 7.2 percent of original size [2022-11-20 20:58:49,503 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 [2022-11-20 20:58:49,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:49,630 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:49,630 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 [2022-11-20 20:58:49,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:49,959 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:49,960 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 [2022-11-20 20:58:49,984 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:58:51,107 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '688#(and (<= 100000 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |#NULL.offset| 0) (= |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) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= |ULTIMATE.start_main_~result~0#1| 1) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#password~0#1.base|) (= |#NULL.base| 0))' at error location [2022-11-20 20:58:51,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:58:51,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:58:51,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-20 20:58:51,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260729257] [2022-11-20 20:58:51,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:58:51,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 20:58:51,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 20:58:51,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2022-11-20 20:58:51,109 INFO L87 Difference]: Start difference. First operand 18 states and 20 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) [2022-11-20 20:58:51,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:51,191 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-11-20 20:58:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:58:51,192 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 15 [2022-11-20 20:58:51,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:51,192 INFO L225 Difference]: With dead ends: 39 [2022-11-20 20:58:51,192 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 20:58:51,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-11-20 20:58:51,194 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:51,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 33 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:58:51,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 20:58:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-20 20:58:51,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-20 20:58:51,201 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 15 [2022-11-20 20:58:51,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:51,202 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-20 20:58:51,202 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) [2022-11-20 20:58:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 20:58:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 20:58:51,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:51,203 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:51,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 20:58:51,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:51,411 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 20:58:51,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1447698393, now seen corresponding path program 2 times [2022-11-20 20:58:51,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:51,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897205048] [2022-11-20 20:58:51,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:51,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:58:51,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:51,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897205048] [2022-11-20 20:58:51,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897205048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:51,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125674161] [2022-11-20 20:58:51,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 20:58:51,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:51,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:51,495 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:51,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 20:58:51,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-20 20:58:51,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 20:58:51,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:58:51,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:58:51,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:58:51,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125674161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:51,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:58:51,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 20:58:51,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120560538] [2022-11-20 20:58:51,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:51,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:58:51,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:51,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:58:51,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:58:51,572 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:51,601 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-20 20:58:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:58:51,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 20:58:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:51,603 INFO L225 Difference]: With dead ends: 24 [2022-11-20 20:58:51,603 INFO L226 Difference]: Without dead ends: 23 [2022-11-20 20:58:51,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:58:51,605 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:51,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:58:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-20 20:58:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-20 20:58:51,612 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) [2022-11-20 20:58:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-20 20:58:51,612 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 21 [2022-11-20 20:58:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:51,613 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-20 20:58:51,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:58:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 20:58:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 20:58:51,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:58:51,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:51,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 20:58:51,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:51,819 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)] === [2022-11-20 20:58:51,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:58:51,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1928977125, now seen corresponding path program 1 times [2022-11-20 20:58:51,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:58:51,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732427191] [2022-11-20 20:58:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:51,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:58:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:51,901 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:58:51,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:58:51,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732427191] [2022-11-20 20:58:51,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732427191] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:58:51,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120580906] [2022-11-20 20:58:51,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:58:51,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:51,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:58:51,907 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:58:51,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 20:58:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:58:51,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:58:51,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:58:52,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:58:52,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:58:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:58:52,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120580906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:58:52,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1948020178] [2022-11-20 20:58:52,124 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-20 20:58:52,125 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:58:52,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:58:52,125 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:58:52,125 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:58:52,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,201 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-20 20:58:52,201 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 [2022-11-20 20:58:52,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,214 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 [2022-11-20 20:58:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,251 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 [2022-11-20 20:58:52,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,290 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 [2022-11-20 20:58:52,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:52,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:52,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:52,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:58:52,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:52,505 INFO L321 Elim1Store]: treesize reduction 176, result has 19.3 percent of original size [2022-11-20 20:58:52,506 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 359 treesize of output 328 [2022-11-20 20:58:52,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:52,921 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:52,922 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 [2022-11-20 20:58:53,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:58:53,183 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-20 20:58:53,183 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 [2022-11-20 20:58:53,194 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:58:54,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1948020178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:58:54,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:58:54,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 8, 8] total 27 [2022-11-20 20:58:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068128963] [2022-11-20 20:58:54,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:58:54,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 20:58:54,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:58:54,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 20:58:54,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2022-11-20 20:58:54,041 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-11-20 20:58:54,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:58:54,482 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-20 20:58:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:58:54,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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 22 [2022-11-20 20:58:54,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:58:54,486 INFO L225 Difference]: With dead ends: 23 [2022-11-20 20:58:54,486 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:58:54,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2022-11-20 20:58:54,487 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:58:54,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:58:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:58:54,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:58:54,488 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) [2022-11-20 20:58:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:58:54,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-20 20:58:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:58:54,489 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:58:54,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2022-11-20 20:58:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:58:54,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:58:54,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-20 20:58:54,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-20 20:58:54,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-20 20:58:54,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-20 20:58:54,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-20 20:58:54,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-20 20:58:54,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 20:58:54,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:58:54,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:58:55,054 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-20 20:58:55,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-20 20:58:55,055 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-11-20 20:58:55,055 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)) [2022-11-20 20:58:55,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-20 20:58:55,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 20:58:55,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 20:58:55,056 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-11-20 20:58:55,056 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-11-20 20:58:55,056 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)) [2022-11-20 20:58:55,057 INFO L899 garLoopResultBuilder]: For program point L28-6(lines 16 40) no Hoare annotation was computed. [2022-11-20 20:58:55,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-20 20:58:55,057 INFO L902 garLoopResultBuilder]: At program point L33(lines 33 38) the Hoare annotation is: true [2022-11-20 20:58:55,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:58:55,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 20:58:55,058 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-11-20 20:58:55,058 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-11-20 20:58:55,058 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-11-20 20:58:55,058 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)) (.cse4 (= |#NULL.base| 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= 0 |ULTIMATE.start_main_~#guess~0#1.base|) .cse2 .cse3 (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#password~0#1.base|) .cse4) (let ((.cse5 (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 .cse5 0) 48) (= 27 (select |#length| 2)) (= (select .cse5 1) 0) (= (select |#valid| |ULTIMATE.start_main_~#password~0#1.base|) 1) (< 0 |#StackHeapBarrier|) .cse4)))) [2022-11-20 20:58:55,062 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:58:55,064 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:58:55,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:58:55 BoogieIcfgContainer [2022-11-20 20:58:55,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:58:55,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:58:55,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:58:55,085 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:58:55,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:58:39" (3/4) ... [2022-11-20 20:58:55,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:58:55,099 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-20 20:58:55,099 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 20:58:55,099 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 20:58:55,100 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:58:55,124 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 [2022-11-20 20:58:55,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:58:55,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:58:55,135 INFO L158 Benchmark]: Toolchain (without parser) took 16473.15ms. Allocated memory was 115.3MB in the beginning and 337.6MB in the end (delta: 222.3MB). Free memory was 58.8MB in the beginning and 301.8MB in the end (delta: -243.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:58:55,136 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 115.3MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:58:55,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.05ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 58.7MB in the beginning and 129.1MB in the end (delta: -70.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-20 20:58:55,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.66ms. Allocated memory is still 159.4MB. Free memory was 129.1MB in the beginning and 127.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:58:55,137 INFO L158 Benchmark]: Boogie Preprocessor took 25.62ms. Allocated memory is still 159.4MB. Free memory was 127.6MB in the beginning and 126.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:58:55,137 INFO L158 Benchmark]: RCFGBuilder took 497.45ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 111.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 20:58:55,137 INFO L158 Benchmark]: TraceAbstraction took 15583.69ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 110.8MB in the beginning and 305.0MB in the end (delta: -194.1MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. [2022-11-20 20:58:55,138 INFO L158 Benchmark]: Witness Printer took 49.93ms. Allocated memory is still 337.6MB. Free memory was 305.0MB in the beginning and 301.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:58:55,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 115.3MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.05ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 58.7MB in the beginning and 129.1MB in the end (delta: -70.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.66ms. Allocated memory is still 159.4MB. Free memory was 129.1MB in the beginning and 127.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.62ms. Allocated memory is still 159.4MB. Free memory was 127.6MB in the beginning and 126.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.45ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 111.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15583.69ms. Allocated memory was 159.4MB in the beginning and 337.6MB in the end (delta: 178.3MB). Free memory was 110.8MB in the beginning and 305.0MB in the end (delta: -194.1MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. * Witness Printer took 49.93ms. Allocated memory is still 337.6MB. Free memory was 305.0MB in the beginning and 301.8MB 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: 15.5s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 55 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 259 GetRequests, 143 SyntacticMatches, 7 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=7, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 12 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 220 HoareAnnotationTreeSize, 4 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 665 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 197 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 426 SizeOfPredicates, 9 NumberOfNonLiveVariables, 667 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 75/116 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: 4.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 35, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 106, TOOLS_POST_TIME: 4.2s, 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: 4.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.5s, 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: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 21, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 35, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 3.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.5s, 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: 458, 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: ((((((((result == 1 && 1 <= i) && guess == 0) && 0 <= guess) && password == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= password) && #NULL == 0) || ((((((((((((((((((((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) - 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! [2022-11-20 20:58:55,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c47946-9480-4480-b439-8c94a1a08bbb/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE