./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-2329fc7 [2022-12-14 11:39:31,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:39:31,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:39:31,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:39:31,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:39:31,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:39:31,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:39:31,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:39:31,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:39:31,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:39:31,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:39:31,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:39:31,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:39:31,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:39:31,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:39:31,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:39:31,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:39:31,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:39:31,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:39:31,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:39:31,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:39:31,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:39:31,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:39:31,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:39:31,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:39:31,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:39:31,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:39:31,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:39:31,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:39:31,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:39:31,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:39:31,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:39:31,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:39:31,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:39:31,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:39:31,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:39:31,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:39:31,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:39:31,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:39:31,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:39:31,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:39:31,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 11:39:31,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:39:31,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:39:31,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:39:31,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:39:31,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:39:31,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:39:31,136 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:39:31,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:39:31,140 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:39:31,141 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:39:31,141 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:39:31,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:39:31,141 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:39:31,141 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:39:31,141 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:39:31,142 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:39:31,142 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:39:31,142 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:39:31,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:39:31,143 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:39:31,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:39:31,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:39:31,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:39:31,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:39:31,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:39:31,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:39:31,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:39:31,144 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:39:31,144 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:39:31,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:39:31,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:39:31,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:39:31,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:39:31,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:39:31,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:39:31,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:39:31,145 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:39:31,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:39:31,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:39:31,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:39:31,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:39:31,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:39:31,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:39:31,146 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_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f [2022-12-14 11:39:31,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:39:31,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:39:31,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:39:31,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:39:31,336 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:39:31,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-regression/test22-1.c [2022-12-14 11:39:33,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:39:34,092 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:39:34,092 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/sv-benchmarks/c/ldv-regression/test22-1.c [2022-12-14 11:39:34,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/data/1cf099883/d54220a265b24712920d63c551a5fa16/FLAGfeac62b30 [2022-12-14 11:39:34,106 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/data/1cf099883/d54220a265b24712920d63c551a5fa16 [2022-12-14 11:39:34,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:39:34,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:39:34,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:39:34,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:39:34,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:39:34,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4935f972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34, skipping insertion in model container [2022-12-14 11:39:34,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:39:34,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:39:34,259 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_d4b72f12-4747-4b04-a077-deb7227237e1/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2022-12-14 11:39:34,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:39:34,268 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:39:34,282 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_d4b72f12-4747-4b04-a077-deb7227237e1/sv-benchmarks/c/ldv-regression/test22-1.c[1029,1042] [2022-12-14 11:39:34,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:39:34,295 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:39:34,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34 WrapperNode [2022-12-14 11:39:34,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:39:34,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:39:34,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:39:34,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:39:34,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,327 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-12-14 11:39:34,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:39:34,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:39:34,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:39:34,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:39:34,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,347 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:39:34,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:39:34,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:39:34,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:39:34,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (1/1) ... [2022-12-14 11:39:34,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:39:34,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:34,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:39:34,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:39:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:39:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:39:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:39:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-12-14 11:39:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-12-14 11:39:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:39:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:39:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:39:34,463 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:39:34,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:39:34,592 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:39:34,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:39:34,643 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:39:34,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:34 BoogieIcfgContainer [2022-12-14 11:39:34,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:39:34,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:39:34,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:39:34,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:39:34,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:39:34" (1/3) ... [2022-12-14 11:39:34,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7859c3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:39:34, skipping insertion in model container [2022-12-14 11:39:34,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:34" (2/3) ... [2022-12-14 11:39:34,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7859c3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:39:34, skipping insertion in model container [2022-12-14 11:39:34,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:34" (3/3) ... [2022-12-14 11:39:34,654 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-1.c [2022-12-14 11:39:34,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:39:34,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 11:39:34,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:39:34,713 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;@586c6e86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:39:34,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 11:39:34,716 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) [2022-12-14 11:39:34,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 11:39:34,722 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:34,722 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:34,722 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)] === [2022-12-14 11:39:34,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1545319897, now seen corresponding path program 1 times [2022-12-14 11:39:34,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:34,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430029462] [2022-12-14 11:39:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 11:39:35,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:35,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430029462] [2022-12-14 11:39:35,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430029462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:35,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:35,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487360407] [2022-12-14 11:39:35,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:35,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:39:35,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:39:35,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:39:35,123 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 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-14 11:39:35,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:35,189 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-12-14 11:39:35,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:39:35,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 15 [2022-12-14 11:39:35,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:35,199 INFO L225 Difference]: With dead ends: 33 [2022-12-14 11:39:35,199 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 11:39:35,203 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 [2022-12-14 11:39:35,206 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:35,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:39:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 11:39:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 11:39:35,236 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) [2022-12-14 11:39:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 11:39:35,238 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2022-12-14 11:39:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:35,239 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 11:39:35,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-14 11:39:35,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 11:39:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 11:39:35,240 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:35,240 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:35,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:39:35,241 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)] === [2022-12-14 11:39:35,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:35,241 INFO L85 PathProgramCache]: Analyzing trace with hash 660276606, now seen corresponding path program 1 times [2022-12-14 11:39:35,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:35,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637354369] [2022-12-14 11:39:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:35,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:39:35,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:35,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637354369] [2022-12-14 11:39:35,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637354369] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:35,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544840913] [2022-12-14 11:39:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:35,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:35,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:35,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:35,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:39:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:35,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 11:39:35,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:35,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:35,876 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 [2022-12-14 11:39:35,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:35,885 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-12-14 11:39:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:35,891 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 [2022-12-14 11:39:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:35,901 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 [2022-12-14 11:39:36,636 INFO L321 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2022-12-14 11:39:36,636 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 64 treesize of output 67 [2022-12-14 11:39:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:39:36,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:39:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:39:37,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544840913] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:39:37,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1738673910] [2022-12-14 11:39:37,115 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 11:39:37,115 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:39:37,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:39:37,123 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:39:37,123 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:37,170 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 [2022-12-14 11:39:37,871 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-12-14 11:39:37,884 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:39:40,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1738673910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:40,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:39:40,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 7, 7] total 30 [2022-12-14 11:39:40,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742554431] [2022-12-14 11:39:40,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:40,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:39:40,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:40,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:39:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:39:40,008 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-12-14 11:39:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:40,204 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 11:39:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 11:39:40,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 16 [2022-12-14 11:39:40,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:40,205 INFO L225 Difference]: With dead ends: 19 [2022-12-14 11:39:40,206 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 11:39:40,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:39:40,207 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:40,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 29 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:39:40,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 11:39:40,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 11:39:40,213 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) [2022-12-14 11:39:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-14 11:39:40,214 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 16 [2022-12-14 11:39:40,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:40,214 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-14 11:39:40,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-12-14 11:39:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-14 11:39:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 11:39:40,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:40,216 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:40,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:39:40,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:40,418 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)] === [2022-12-14 11:39:40,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:40,420 INFO L85 PathProgramCache]: Analyzing trace with hash -649786592, now seen corresponding path program 1 times [2022-12-14 11:39:40,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:40,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277128725] [2022-12-14 11:39:40,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 11:39:40,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:40,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277128725] [2022-12-14 11:39:40,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277128725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:40,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:40,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:40,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129487305] [2022-12-14 11:39:40,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:40,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:39:40,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:40,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:39:40,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:39:40,496 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 11:39:40,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:40,522 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-14 11:39:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:39:40,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2022-12-14 11:39:40,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:40,523 INFO L225 Difference]: With dead ends: 18 [2022-12-14 11:39:40,523 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 11:39:40,523 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 [2022-12-14 11:39:40,524 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:40,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:39:40,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 11:39:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 11:39:40,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-12-14 11:39:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 11:39:40,531 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 19 [2022-12-14 11:39:40,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:40,532 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 11:39:40,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 11:39:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 11:39:40,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 11:39:40,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:40,533 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:40,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:39:40,533 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)] === [2022-12-14 11:39:40,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:40,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1331452197, now seen corresponding path program 1 times [2022-12-14 11:39:40,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:40,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095194435] [2022-12-14 11:39:40,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:40,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:39:40,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:40,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095194435] [2022-12-14 11:39:40,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095194435] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:40,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31344257] [2022-12-14 11:39:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:40,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:40,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:40,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:40,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:39:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:40,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 11:39:40,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:40,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:40,911 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 [2022-12-14 11:39:40,916 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-12-14 11:39:40,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:40,920 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 [2022-12-14 11:39:40,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:40,928 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 [2022-12-14 11:39:41,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:39:41,283 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:39:41,283 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 [2022-12-14 11:39:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:39:41,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:39:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:39:41,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31344257] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:39:41,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2072917109] [2022-12-14 11:39:41,696 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 11:39:41,697 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:39:41,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:39:41,697 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:39:41,697 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:41,728 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 [2022-12-14 11:39:42,653 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-12-14 11:39:42,665 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:39:46,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2072917109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:46,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:39:46,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9, 8, 10] total 36 [2022-12-14 11:39:46,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434181174] [2022-12-14 11:39:46,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:46,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:39:46,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:39:46,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:39:46,584 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2022-12-14 11:39:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:46,905 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-12-14 11:39:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:39:46,906 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 20 [2022-12-14 11:39:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:46,906 INFO L225 Difference]: With dead ends: 22 [2022-12-14 11:39:46,906 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 11:39:46,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 11:39:46,907 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:46,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 9 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:39:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 11:39:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 11:39:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.0625) 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) [2022-12-14 11:39:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-12-14 11:39:46,913 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2022-12-14 11:39:46,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:46,913 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-12-14 11:39:46,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2022-12-14 11:39:46,913 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-12-14 11:39:46,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 11:39:46,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:46,914 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:46,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:39:47,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:47,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 11:39:47,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash 699236684, now seen corresponding path program 1 times [2022-12-14 11:39:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:47,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907687959] [2022-12-14 11:39:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 11:39:47,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:47,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907687959] [2022-12-14 11:39:47,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907687959] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:47,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011329692] [2022-12-14 11:39:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:47,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:47,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:47,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:47,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:39:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:47,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 11:39:47,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:47,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:47,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:47,540 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 [2022-12-14 11:39:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:47,545 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-12-14 11:39:47,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:47,549 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 [2022-12-14 11:39:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:47,555 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 [2022-12-14 11:39:47,976 INFO L321 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2022-12-14 11:39:47,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 61 [2022-12-14 11:39:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:39:48,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:39:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:39:48,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011329692] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:39:48,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [476865083] [2022-12-14 11:39:48,528 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 11:39:48,528 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:39:48,529 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:39:48,529 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:39:48,529 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:48,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:48,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:39:48,553 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 [2022-12-14 11:39:49,481 INFO L197 IcfgInterpreter]: Interpreting procedure get_dummy with input of size 77 for LOIs [2022-12-14 11:39:49,492 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:39:51,878 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '695#(and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (= 5 |~#d2~0.base|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |~#d1~0.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 11:39:51,878 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:39:51,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:39:51,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 28 [2022-12-14 11:39:51,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453357164] [2022-12-14 11:39:51,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:39:51,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 11:39:51,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 11:39:51,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1406, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 11:39:51,881 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 29 states, 22 states have (on average 2.227272727272727) internal successors, (49), 25 states have internal predecessors, (49), 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) [2022-12-14 11:39:53,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:53,311 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-12-14 11:39:53,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 11:39:53,311 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 22 states have (on average 2.227272727272727) internal successors, (49), 25 states have internal predecessors, (49), 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 24 [2022-12-14 11:39:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:53,311 INFO L225 Difference]: With dead ends: 31 [2022-12-14 11:39:53,311 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:39:53,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=555, Invalid=2637, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 11:39:53,312 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 154 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:53,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 28 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:39:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:39:53,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:39:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:39:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:39:53,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-12-14 11:39:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:53,313 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:39:53,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 22 states have (on average 2.227272727272727) internal successors, (49), 25 states have internal predecessors, (49), 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) [2022-12-14 11:39:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:39:53,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:39:53,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 11:39:53,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 11:39:53,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 11:39:53,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 11:39:53,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 11:39:53,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:53,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 11:39:54,247 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 22 25) the Hoare annotation is: true [2022-12-14 11:39:54,248 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2022-12-14 11:39:54,248 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)))) [2022-12-14 11:39:54,248 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-12-14 11:39:54,249 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)))) [2022-12-14 11:39:54,249 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-12-14 11:39:54,249 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2022-12-14 11:39:54,249 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 32 52) the Hoare annotation is: true [2022-12-14 11:39:54,249 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2022-12-14 11:39:54,250 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) 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)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= .cse1 2147483647) (= (select |#valid| 3) 1) (<= 0 (+ 2147483648 .cse1)) (= (select |#length| 4) 8) (<= 0 (+ .cse2 2147483648)) (= (select |#valid| 4) 1) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 2147483647) (<= 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) (or (<= 1 (select (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|) |ULTIMATE.start_main_~pd2~0#1.offset|)) (not |ULTIMATE.start_main_#t~short15#1|)) (= 8 (select |#length| 5)) (<= .cse2 2147483647) (= (select .cse6 0) 48) (= (select .cse6 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-12-14 11:39:54,250 INFO L895 garLoopResultBuilder]: At program point L40-4(lines 40 42) the Hoare annotation is: (or (<= 1 (select (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|) |ULTIMATE.start_main_~pd2~0#1.offset|)) (not |ULTIMATE.start_main_#t~short15#1|)) [2022-12-14 11:39:54,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-12-14 11:39:54,250 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-12-14 11:39:54,250 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-12-14 11:39:54,250 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2022-12-14 11:39:54,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-12-14 11:39:54,250 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2022-12-14 11:39:54,251 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 11:39:54,251 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 11:39:54,251 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-12-14 11:39:54,251 INFO L895 garLoopResultBuilder]: At program point L43(lines 43 45) the Hoare annotation is: (or (<= 1 (select (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|) |ULTIMATE.start_main_~pd2~0#1.offset|)) (not |ULTIMATE.start_main_#t~short15#1|)) [2022-12-14 11:39:54,251 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-12-14 11:39:54,251 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-12-14 11:39:54,251 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)))) [2022-12-14 11:39:54,251 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-12-14 11:39:54,254 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 11:39:54,256 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:39:54,261 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,262 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,262 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,262 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,268 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,268 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,269 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,269 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:39:54 BoogieIcfgContainer [2022-12-14 11:39:54,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:39:54,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:39:54,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:39:54,271 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:39:54,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:34" (3/4) ... [2022-12-14 11:39:54,274 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 11:39:54,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2022-12-14 11:39:54,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 11:39:54,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 11:39:54,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 11:39:54,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:39:54,297 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((0 <= unknown-#memory_int-unknown[d2][d2] + 2147483648 && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && d2 == 0) && d1 == 4) && unknown-#memory_int-unknown[d2][d2] <= 2147483647) && 5 == d2) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && 0 <= i + 2147483648) && unknown-#memory_int-unknown[d1][d1] <= 2147483647) && \valid[3] == 1) && 0 <= 2147483648 + unknown-#memory_int-unknown[d1][d1]) && unknown-#length-unknown[4] == 8) && 0 <= unknown-#memory_int-unknown[d1][d1 + 4] + 2147483648) && \valid[4] == 1) && unknown-#memory_int-unknown[pa][pa] <= 2147483647) && 0 <= unknown-#memory_int-unknown[d2][d2 + 4] + 2147483648) && unknown-#memory_int-unknown[d2][d2 + 4] <= 2147483647) && \valid[1] == 1) && (\exists v_get_dummy_#t~nondet8_24 : int :: (if !(v_get_dummy_#t~nondet8_24 % 256 == 0) then d1 else d2) == pd1 && (if !(v_get_dummy_#t~nondet8_24 % 256 == 0) then d1 else d2) == pd1)) && (\exists v_get_dummy_#t~nondet8_23 : int :: (if !(v_get_dummy_#t~nondet8_23 % 256 == 0) then d1 else d2) == pd2 && (if !(v_get_dummy_#t~nondet8_23 % 256 == 0) then d1 else d2) == pd2)) && \valid[0] == 0) && d1 == 0) && \valid[2] == 1) && #NULL == 0) && (1 <= unknown-#memory_int-unknown[pd2][pd2] || !aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux)) && 8 == unknown-#length-unknown[5]) && unknown-#memory_int-unknown[d1][d1 + 4] <= 2147483647) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-12-14 11:39:54,303 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:39:54,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:39:54,304 INFO L158 Benchmark]: Toolchain (without parser) took 20194.99ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 84.0MB in the beginning and 106.4MB in the end (delta: -22.4MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-14 11:39:54,304 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:39:54,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.37ms. Allocated memory is still 125.8MB. Free memory was 84.0MB in the beginning and 73.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:39:54,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.42ms. Allocated memory is still 125.8MB. Free memory was 73.4MB in the beginning and 71.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:39:54,305 INFO L158 Benchmark]: Boogie Preprocessor took 22.43ms. Allocated memory is still 125.8MB. Free memory was 71.9MB in the beginning and 70.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:39:54,305 INFO L158 Benchmark]: RCFGBuilder took 294.72ms. Allocated memory is still 125.8MB. Free memory was 70.2MB in the beginning and 55.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:39:54,305 INFO L158 Benchmark]: TraceAbstraction took 19622.66ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 55.1MB in the beginning and 109.5MB in the end (delta: -54.4MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2022-12-14 11:39:54,305 INFO L158 Benchmark]: Witness Printer took 32.60ms. Allocated memory is still 169.9MB. Free memory was 109.5MB in the beginning and 106.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 11:39:54,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.37ms. Allocated memory is still 125.8MB. Free memory was 84.0MB in the beginning and 73.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.42ms. Allocated memory is still 125.8MB. Free memory was 73.4MB in the beginning and 71.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.43ms. Allocated memory is still 125.8MB. Free memory was 71.9MB in the beginning and 70.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.72ms. Allocated memory is still 125.8MB. Free memory was 70.2MB in the beginning and 55.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19622.66ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 55.1MB in the beginning and 109.5MB in the end (delta: -54.4MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 32.60ms. Allocated memory is still 169.9MB. Free memory was 109.5MB in the beginning and 106.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] * 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: 19.6s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 502 IncrementalHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 46 mSDtfsCounter, 502 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 95 SyntacticMatches, 9 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1534 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 18 NumberOfFragments, 816 HoareAnnotationTreeSize, 10 FomulaSimplifications, 69 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 1900 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 203 ConstructedInterpolants, 12 QuantifiedInterpolants, 2869 SizeOfPredicates, 43 NumberOfNonLiveVariables, 420 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 46/78 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: 1.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 32, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 1.1s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 52, TOOLS_QUANTIFIERELIM_TIME: 1.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 78, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.1s, 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: 32, 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: 353, DAG_COMPRESSION_RETAINED_NODES: 84, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2022-12-14 11:39:54,314 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,315 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,315 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,315 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,316 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,316 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_24,QUANTIFIED] [2022-12-14 11:39:54,316 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] [2022-12-14 11:39:54,316 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_get_dummy_#t~nondet8_23,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((((((((((((0 <= unknown-#memory_int-unknown[d2][d2] + 2147483648 && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && d2 == 0) && d1 == 4) && unknown-#memory_int-unknown[d2][d2] <= 2147483647) && 5 == d2) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && 0 <= i + 2147483648) && unknown-#memory_int-unknown[d1][d1] <= 2147483647) && \valid[3] == 1) && 0 <= 2147483648 + unknown-#memory_int-unknown[d1][d1]) && unknown-#length-unknown[4] == 8) && 0 <= unknown-#memory_int-unknown[d1][d1 + 4] + 2147483648) && \valid[4] == 1) && unknown-#memory_int-unknown[pa][pa] <= 2147483647) && 0 <= unknown-#memory_int-unknown[d2][d2 + 4] + 2147483648) && unknown-#memory_int-unknown[d2][d2 + 4] <= 2147483647) && \valid[1] == 1) && (\exists v_get_dummy_#t~nondet8_24 : int :: (if !(v_get_dummy_#t~nondet8_24 % 256 == 0) then d1 else d2) == pd1 && (if !(v_get_dummy_#t~nondet8_24 % 256 == 0) then d1 else d2) == pd1)) && (\exists v_get_dummy_#t~nondet8_23 : int :: (if !(v_get_dummy_#t~nondet8_23 % 256 == 0) then d1 else d2) == pd2 && (if !(v_get_dummy_#t~nondet8_23 % 256 == 0) then d1 else d2) == pd2)) && \valid[0] == 0) && d1 == 0) && \valid[2] == 1) && #NULL == 0) && (1 <= unknown-#memory_int-unknown[pd2][pd2] || !aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux)) && 8 == unknown-#length-unknown[5]) && unknown-#memory_int-unknown[d1][d1 + 4] <= 2147483647) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 <= unknown-#memory_int-unknown[pd2][pd2] || !aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 <= unknown-#memory_int-unknown[pd2][pd2] || !aux-pd1 != 0 && pd1 == pd2 && (*pd2).a > 0-aux RESULT: Ultimate proved your program to be correct! [2022-12-14 11:39:54,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4b72f12-4747-4b04-a077-deb7227237e1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE