./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/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_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/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_be4d5685-a782-4b30-95f0-72346ebb09be/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 e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f --- 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 20:33:13,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:33:13,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:33:13,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:33:13,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:33:13,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:33:13,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:33:13,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:33:13,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:33:13,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:33:13,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:33:13,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:33:13,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:33:13,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:33:13,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:33:13,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:33:13,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:33:13,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:33:13,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:33:13,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:33:13,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:33:13,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:33:13,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:33:13,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:33:13,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:33:13,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:33:13,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:33:13,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:33:13,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:33:13,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:33:13,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:33:14,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:33:14,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:33:14,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:33:14,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:33:14,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:33:14,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:33:14,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:33:14,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:33:14,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:33:14,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:33:14,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 20:33:14,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:33:14,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:33:14,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:33:14,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:33:14,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:33:14,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:33:14,065 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:33:14,066 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:33:14,066 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:33:14,066 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:33:14,068 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:33:14,068 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:33:14,068 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:33:14,069 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:33:14,069 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:33:14,069 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:33:14,070 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:33:14,070 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:33:14,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:33:14,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:33:14,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:33:14,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:33:14,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:33:14,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:33:14,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:33:14,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:33:14,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:33:14,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:33:14,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:33:14,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:33:14,075 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:33:14,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:33:14,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:33:14,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:33:14,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:33:14,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:33:14,078 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:33:14,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:33:14,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:33:14,079 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:33:14,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:33:14,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:33:14,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:33:14,080 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_be4d5685-a782-4b30-95f0-72346ebb09be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f [2022-11-20 20:33:14,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:33:14,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:33:14,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:33:14,476 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:33:14,477 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:33:14,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-regression/test22-1.c [2022-11-20 20:33:17,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:33:18,130 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:33:18,130 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/sv-benchmarks/c/ldv-regression/test22-1.c [2022-11-20 20:33:18,137 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/data/8e7b8d36e/1f274b1b32eb44639ce18190f1246c8a/FLAG94f1ae03d [2022-11-20 20:33:18,155 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/data/8e7b8d36e/1f274b1b32eb44639ce18190f1246c8a [2022-11-20 20:33:18,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:33:18,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:33:18,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:33:18,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:33:18,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:33:18,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754085f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18, skipping insertion in model container [2022-11-20 20:33:18,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:33:18,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:33:18,389 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_be4d5685-a782-4b30-95f0-72346ebb09be/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2022-11-20 20:33:18,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:33:18,399 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:33:18,416 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_be4d5685-a782-4b30-95f0-72346ebb09be/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2022-11-20 20:33:18,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:33:18,434 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:33:18,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18 WrapperNode [2022-11-20 20:33:18,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:33:18,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:33:18,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:33:18,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:33:18,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,479 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-11-20 20:33:18,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:33:18,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:33:18,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:33:18,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:33:18,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,507 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:33:18,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:33:18,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:33:18,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:33:18,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (1/1) ... [2022-11-20 20:33:18,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:33:18,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:33:18,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:33:18,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:33:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:33:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:33:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:33:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-11-20 20:33:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-11-20 20:33:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:33:18,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:33:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:33:18,738 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:33:18,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:33:19,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:33:19,213 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:33:19,214 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 20:33:19,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:33:19 BoogieIcfgContainer [2022-11-20 20:33:19,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:33:19,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:33:19,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:33:19,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:33:19,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:33:18" (1/3) ... [2022-11-20 20:33:19,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6124e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:33:19, skipping insertion in model container [2022-11-20 20:33:19,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:18" (2/3) ... [2022-11-20 20:33:19,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6124e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:33:19, skipping insertion in model container [2022-11-20 20:33:19,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:33:19" (3/3) ... [2022-11-20 20:33:19,238 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-1.c [2022-11-20 20:33:19,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:33:19,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 20:33:19,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:33:19,363 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;@715810cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:33:19,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 20:33:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 20:33:19,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:19,378 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:33:19,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:33:19,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1545319897, now seen corresponding path program 1 times [2022-11-20 20:33:19,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:33:19,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285478375] [2022-11-20 20:33:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:19,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:33:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:33:20,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:33:20,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285478375] [2022-11-20 20:33:20,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285478375] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:33:20,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977468563] [2022-11-20 20:33:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:20,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:33:20,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:33:20,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:33:20,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:33:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:21,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 20:33:21,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:21,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:21,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:21,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2022-11-20 20:33:22,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:33:22,105 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:33:22,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2022-11-20 20:33:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:33:22,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:33:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:33:22,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977468563] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:33:22,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2001101683] [2022-11-20 20:33:22,882 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-20 20:33:22,887 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:33:22,892 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:33:22,898 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:33:22,899 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:33:22,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:22,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:23,013 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 0 case distinctions, treesize of input 89 treesize of output 65 [2022-11-20 20:33:24,362 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-11-20 20:33:24,388 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:33:28,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2001101683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:28,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:33:28,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 7, 7] total 30 [2022-11-20 20:33:28,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238045341] [2022-11-20 20:33:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:28,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 20:33:28,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:33:28,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 20:33:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-20 20:33:28,317 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:28,368 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-20 20:33:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 20:33:28,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2022-11-20 20:33:28,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:28,379 INFO L225 Difference]: With dead ends: 30 [2022-11-20 20:33:28,380 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 20:33:28,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-20 20:33:28,387 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:28,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 42 Unchecked, 0.0s Time] [2022-11-20 20:33:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 20:33:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-20 20:33:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-20 20:33:28,431 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2022-11-20 20:33:28,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:28,433 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-20 20:33:28,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-20 20:33:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 20:33:28,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:28,435 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:33:28,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 20:33:28,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 20:33:28,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:33:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash 660276606, now seen corresponding path program 1 times [2022-11-20 20:33:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:33:28,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50553060] [2022-11-20 20:33:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:33:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:33:28,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:33:28,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50553060] [2022-11-20 20:33:28,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50553060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:28,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:28,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:33:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755075957] [2022-11-20 20:33:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:28,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:33:28,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:33:28,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:33:28,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:33:28,768 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:33:28,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:28,817 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-20 20:33:28,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:33:28,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2022-11-20 20:33:28,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:28,819 INFO L225 Difference]: With dead ends: 19 [2022-11-20 20:33:28,819 INFO L226 Difference]: Without dead ends: 18 [2022-11-20 20:33:28,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:33:28,822 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:28,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:33:28,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-20 20:33:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 20:33:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-20 20:33:28,840 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 16 [2022-11-20 20:33:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:28,841 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-20 20:33:28,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:33:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-20 20:33:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 20:33:28,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:28,845 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:33:28,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:33:28,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:33:28,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:28,848 INFO L85 PathProgramCache]: Analyzing trace with hash -649786592, now seen corresponding path program 1 times [2022-11-20 20:33:28,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:33:28,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594968874] [2022-11-20 20:33:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:33:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:33:29,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:33:29,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594968874] [2022-11-20 20:33:29,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594968874] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:33:29,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347233150] [2022-11-20 20:33:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:29,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:33:29,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:33:29,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:33:29,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:33:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:29,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-20 20:33:29,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:29,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-20 20:33:29,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:29,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-20 20:33:29,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:29,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-20 20:33:30,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:33:30,440 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:33:30,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2022-11-20 20:33:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:33:30,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:33:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:33:31,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347233150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:33:31,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1231022556] [2022-11-20 20:33:31,293 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-20 20:33:31,293 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:33:31,293 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:33:31,294 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:33:31,294 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:33:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:31,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:31,337 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 0 case distinctions, treesize of input 89 treesize of output 65 [2022-11-20 20:33:32,873 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-11-20 20:33:32,892 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:33:38,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1231022556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:38,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:33:38,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 8, 10] total 39 [2022-11-20 20:33:38,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401044755] [2022-11-20 20:33:38,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:38,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 20:33:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:33:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 20:33:38,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 20:33:38,535 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:38,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:38,554 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-11-20 20:33:38,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 20:33:38,555 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2022-11-20 20:33:38,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:38,556 INFO L225 Difference]: With dead ends: 22 [2022-11-20 20:33:38,557 INFO L226 Difference]: Without dead ends: 21 [2022-11-20 20:33:38,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 20:33:38,559 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:38,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 60 Unchecked, 0.0s Time] [2022-11-20 20:33:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-20 20:33:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-20 20:33:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-20 20:33:38,570 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 19 [2022-11-20 20:33:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:38,571 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-20 20:33:38,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-20 20:33:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 20:33:38,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:38,572 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:33:38,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:38,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:33:38,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:33:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:38,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1331452197, now seen corresponding path program 1 times [2022-11-20 20:33:38,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:33:38,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168580719] [2022-11-20 20:33:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:38,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:33:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:33:38,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:33:38,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168580719] [2022-11-20 20:33:38,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168580719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:38,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:38,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:33:38,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106746840] [2022-11-20 20:33:38,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:38,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:33:38,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:33:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:33:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:33:38,851 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:33:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:38,873 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-20 20:33:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:33:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-20 20:33:38,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:38,875 INFO L225 Difference]: With dead ends: 21 [2022-11-20 20:33:38,875 INFO L226 Difference]: Without dead ends: 20 [2022-11-20 20:33:38,875 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 20:33:38,876 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:38,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:33:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-20 20:33:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-20 20:33:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:33:38,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-20 20:33:38,887 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 20 [2022-11-20 20:33:38,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:38,887 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-20 20:33:38,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:33:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-20 20:33:38,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 20:33:38,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:38,888 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:33:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:33:38,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 20:33:38,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1269482009, now seen corresponding path program 1 times [2022-11-20 20:33:38,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:33:38,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120607412] [2022-11-20 20:33:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:33:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 20:33:39,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:33:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120607412] [2022-11-20 20:33:39,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120607412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:33:39,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565023817] [2022-11-20 20:33:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:39,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:33:39,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:33:39,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:33:39,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:33:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:39,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-20 20:33:39,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:39,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:39,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-20 20:33:39,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:39,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2022-11-20 20:33:39,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:39,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:39,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-20 20:33:41,395 INFO L321 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2022-11-20 20:33:41,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 72 [2022-11-20 20:33:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:33:41,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:33:42,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:33:42,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565023817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:33:42,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1176489366] [2022-11-20 20:33:42,489 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-20 20:33:42,490 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:33:42,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:33:42,490 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:33:42,491 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:33:42,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:42,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:33:42,533 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 0 case distinctions, treesize of input 89 treesize of output 65 [2022-11-20 20:33:44,299 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-11-20 20:33:44,317 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:33:48,364 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '685#(and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (not (<= |ULTIMATE.start_main_~i~0#1| 2147483646)) (= |~#d1~0.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-20 20:33:48,364 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:33:48,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:33:48,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 13] total 32 [2022-11-20 20:33:48,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095472050] [2022-11-20 20:33:48,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:33:48,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-20 20:33:48,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:33:48,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-20 20:33:48,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1696, Unknown=0, NotChecked=0, Total=1980 [2022-11-20 20:33:48,368 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 33 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 29 states have internal predecessors, (47), 7 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-20 20:33:50,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:50,502 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-11-20 20:33:50,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 20:33:50,504 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 29 states have internal predecessors, (47), 7 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 23 [2022-11-20 20:33:50,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:50,504 INFO L225 Difference]: With dead ends: 27 [2022-11-20 20:33:50,505 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:33:50,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=591, Invalid=2831, Unknown=0, NotChecked=0, Total=3422 [2022-11-20 20:33:50,508 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:50,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 12 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 156 Invalid, 0 Unknown, 62 Unchecked, 0.3s Time] [2022-11-20 20:33:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:33:50,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:33:50,509 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 20:33:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:33:50,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-20 20:33:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:50,510 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:33:50,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 29 states have internal predecessors, (47), 7 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-20 20:33:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:33:50,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:33:50,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 20:33:50,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 20:33:50,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 20:33:50,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 20:33:50,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:50,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:33:50,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:33:51,469 INFO L902 garLoopResultBuilder]: At program point get_dummyENTRY(lines 22 25) the Hoare annotation is: true [2022-11-20 20:33:51,470 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2022-11-20 20:33:51,470 INFO L895 garLoopResultBuilder]: At program point L35-2(line 35) the Hoare annotation is: (let ((.cse6 (select |#memory_int| |~#d1~0.base|)) (.cse7 (select |#memory_int| |~#d2~0.base|))) (let ((.cse0 (select .cse7 |~#d2~0.offset|)) (.cse1 (select .cse6 |~#d1~0.offset|)) (.cse4 (select .cse7 (+ |~#d2~0.offset| 4))) (.cse3 (select .cse6 (+ |~#d1~0.offset| 4))) (.cse5 (select |#memory_int| 1))) (and (<= 0 (+ .cse0 2147483648)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse0 2147483647) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (exists ((|v_get_dummy_#t~nondet8_23| Int)) (let ((.cse2 (not (= (mod |v_get_dummy_#t~nondet8_23| 256) 0)))) (and (= (ite .cse2 |~#d1~0.base| |~#d2~0.base|) |ULTIMATE.start_main_~pd1~0#1.base|) (= (ite .cse2 |~#d1~0.offset| |~#d2~0.offset|) |ULTIMATE.start_main_~pd1~0#1.offset|)))) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse3 2147483648)) (= (select |#valid| 4) 1) (<= 0 (+ .cse4 2147483648)) (<= .cse4 2147483647) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 5)) (<= .cse3 2147483647) (= (select .cse5 0) 48) (= (select .cse5 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-20 20:33:51,470 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-20 20:33:51,471 INFO L895 garLoopResultBuilder]: At program point L35-4(line 35) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |~#d1~0.base|)) (.cse8 (select |#memory_int| |~#d2~0.base|))) (let ((.cse0 (select .cse8 |~#d2~0.offset|)) (.cse1 (select .cse7 |~#d1~0.offset|)) (.cse3 (select .cse8 (+ |~#d2~0.offset| 4))) (.cse2 (select .cse7 (+ |~#d1~0.offset| 4))) (.cse6 (select |#memory_int| 1))) (and (<= 0 (+ .cse0 2147483648)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse0 2147483647) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse2 2147483648)) (= (select |#valid| 4) 1) (<= 0 (+ .cse3 2147483648)) (<= .cse3 2147483647) (= (select |#valid| 1) 1) (exists ((|v_get_dummy_#t~nondet8_24| Int)) (let ((.cse4 (not (= (mod |v_get_dummy_#t~nondet8_24| 256) 0)))) (and (= (ite .cse4 |~#d1~0.offset| |~#d2~0.offset|) |ULTIMATE.start_main_~pd1~0#1.offset|) (= (ite .cse4 |~#d1~0.base| |~#d2~0.base|) |ULTIMATE.start_main_~pd1~0#1.base|)))) (exists ((|v_get_dummy_#t~nondet8_23| Int)) (let ((.cse5 (not (= (mod |v_get_dummy_#t~nondet8_23| 256) 0)))) (and (= (ite .cse5 |~#d1~0.base| |~#d2~0.base|) |ULTIMATE.start_main_~pd2~0#1.base|) (= (ite .cse5 |~#d1~0.offset| |~#d2~0.offset|) |ULTIMATE.start_main_~pd2~0#1.offset|)))) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 5)) (<= .cse2 2147483647) (= (select .cse6 0) 48) (= (select .cse6 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-20 20:33:51,471 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-20 20:33:51,471 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2022-11-20 20:33:51,472 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2022-11-20 20:33:51,472 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|))) (and (= |~#d2~0.offset| 0) (<= (select (select |#memory_int| |~#d2~0.base|) |~#d2~0.offset|) 2147483647) (= |ULTIMATE.start_main_~pd2~0#1.offset| 0) (or (and (= |~#d2~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d2~0.base| |ULTIMATE.start_main_~pd1~0#1.base|)) (and (= |~#d1~0.offset| |ULTIMATE.start_main_~pd1~0#1.offset|) (= |~#d1~0.base| |ULTIMATE.start_main_~pd1~0#1.base|))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= (select (select |#memory_int| |~#d1~0.base|) |~#d1~0.offset|) 2147483647) (<= |~#d1~0.base| 4) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 2147483647) (= |~#d1~0.offset| 0) (or (<= 1 (select .cse0 |ULTIMATE.start_main_~pd2~0#1.offset|)) (not |ULTIMATE.start_main_#t~short15#1|)) (<= (select .cse0 0) 2147483647) (<= 5 |~#d2~0.base|))) [2022-11-20 20:33:51,472 INFO L902 garLoopResultBuilder]: At program point L40-4(lines 40 42) the Hoare annotation is: true [2022-11-20 20:33:51,472 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-20 20:33:51,472 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:33:51,473 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-20 20:33:51,474 INFO L902 garLoopResultBuilder]: At program point L51(lines 32 52) the Hoare annotation is: true [2022-11-20 20:33:51,474 INFO L902 garLoopResultBuilder]: At program point L43(lines 43 45) the Hoare annotation is: true [2022-11-20 20:33:51,474 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-11-20 20:33:51,474 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-11-20 20:33:51,475 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |~#d1~0.base|)) (.cse6 (select |#memory_int| |~#d2~0.base|))) (let ((.cse0 (select .cse6 |~#d2~0.offset|)) (.cse1 (select .cse5 |~#d1~0.offset|)) (.cse3 (select .cse6 (+ |~#d2~0.offset| 4))) (.cse2 (select .cse5 (+ |~#d1~0.offset| 4))) (.cse4 (select |#memory_int| 1))) (and (<= 0 (+ .cse0 2147483648)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= .cse0 2147483647) (= 5 |~#d2~0.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse2 2147483648)) (= (select |#valid| 4) 1) (<= 0 (+ .cse3 2147483648)) (<= .cse3 2147483647) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= |~#d1~0.offset| 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 8 (select |#length| 5)) (<= .cse2 2147483647) (= (select .cse4 0) 48) (= (select .cse4 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-11-20 20:33:51,475 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-20 20:33:51,478 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 20:33:51,488 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:33:51,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:33:51 BoogieIcfgContainer [2022-11-20 20:33:51,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:33:51,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:33:51,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:33:51,517 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:33:51,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:33:19" (3/4) ... [2022-11-20 20:33:51,520 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:33:51,527 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2022-11-20 20:33:51,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 20:33:51,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 20:33:51,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 20:33:51,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:33:51,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:33:51,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:33:51,594 INFO L158 Benchmark]: Toolchain (without parser) took 33435.21ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 109.2MB in the beginning and 117.4MB in the end (delta: -8.1MB). Peak memory consumption was 168.9MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,595 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:33:51,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.93ms. Allocated memory is still 140.5MB. Free memory was 109.2MB in the beginning and 98.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.55ms. Allocated memory is still 140.5MB. Free memory was 98.9MB in the beginning and 97.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,596 INFO L158 Benchmark]: Boogie Preprocessor took 30.13ms. Allocated memory is still 140.5MB. Free memory was 97.4MB in the beginning and 95.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,597 INFO L158 Benchmark]: RCFGBuilder took 706.82ms. Allocated memory is still 140.5MB. Free memory was 95.9MB in the beginning and 80.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,597 INFO L158 Benchmark]: TraceAbstraction took 32290.32ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 80.1MB in the beginning and 120.5MB in the end (delta: -40.5MB). Peak memory consumption was 135.3MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,598 INFO L158 Benchmark]: Witness Printer took 77.78ms. Allocated memory is still 314.6MB. Free memory was 120.5MB in the beginning and 117.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 20:33:51,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.93ms. Allocated memory is still 140.5MB. Free memory was 109.2MB in the beginning and 98.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.55ms. Allocated memory is still 140.5MB. Free memory was 98.9MB in the beginning and 97.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.13ms. Allocated memory is still 140.5MB. Free memory was 97.4MB in the beginning and 95.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 706.82ms. Allocated memory is still 140.5MB. Free memory was 95.9MB in the beginning and 80.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 32290.32ms. Allocated memory was 140.5MB in the beginning and 314.6MB in the end (delta: 174.1MB). Free memory was 80.1MB in the beginning and 120.5MB in the end (delta: -40.5MB). Peak memory consumption was 135.3MB. Max. memory is 16.1GB. * Witness Printer took 77.78ms. Allocated memory is still 314.6MB. Free memory was 120.5MB in the beginning and 117.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: 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 2 procedures, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 32.1s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 164 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 51 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 6 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1731 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 49, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 639 HoareAnnotationTreeSize, 10 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 981 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 196 ConstructedInterpolants, 13 QuantifiedInterpolants, 3398 SizeOfPredicates, 43 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 46/75 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: 3.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 30, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 20, TOOLS_POST_TIME: 1.7s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.6s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 50, TOOLS_QUANTIFIERELIM_TIME: 2.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 74, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 30, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 12, CALL_SUMMARIZER_CACHE_MISSES: 2, 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: 320, DAG_COMPRESSION_RETAINED_NODES: 80, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((d2 == 0 && unknown-#memory_int-unknown[d2][d2] <= 2147483647) && pd2 == 0) && ((d2 == pd1 && d2 == pd1) || (d1 == pd1 && d1 == pd1))) && 0 <= i + 2147483648) && unknown-#memory_int-unknown[d1][d1] <= 2147483647) && d1 <= 4) && unknown-#memory_int-unknown[pa][pa] <= 2147483647) && d1 == 0) && (1 <= unknown-#memory_int-unknown[pd2][pd2] || !aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux)) && unknown-#memory_int-unknown[pd2][0] <= 2147483647) && 5 <= d2 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 20:33:51,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4d5685-a782-4b30-95f0-72346ebb09be/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