./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test09.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_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/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_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/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_a14f2150-6fed-418b-82e8-b8a66452236b/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 3c8a5066810bb97ff9d10a86b40d78fd34b452b9c78bacb47b04948b16ffe251 --- 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 14:16:33,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:16:33,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:16:33,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:16:33,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:16:33,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:16:33,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:16:33,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:16:33,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:16:33,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:16:33,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:16:33,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:16:33,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:16:33,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:16:33,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:16:33,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:16:33,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:16:33,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:16:33,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:16:33,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:16:33,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:16:33,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:16:33,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:16:33,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:16:33,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:16:33,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:16:33,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:16:33,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:16:33,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:16:33,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:16:33,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:16:33,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:16:33,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:16:33,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:16:33,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:16:33,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:16:33,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:16:33,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:16:33,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:16:33,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:16:33,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:16:33,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 14:16:33,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:16:33,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:16:33,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:16:33,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:16:33,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:16:33,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:16:33,260 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:16:33,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:16:33,260 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:16:33,260 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:16:33,260 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:16:33,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:16:33,261 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:16:33,261 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:16:33,261 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:16:33,261 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:16:33,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:16:33,262 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:16:33,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:16:33,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:16:33,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:16:33,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:16:33,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:16:33,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:16:33,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:16:33,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:16:33,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:16:33,275 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:16:33,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:16:33,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:16:33,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:16:33,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:16:33,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:16:33,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:16:33,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:16:33,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:16:33,276 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:16:33,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:16:33,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:16:33,276 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:16:33,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:16:33,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:16:33,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:16:33,277 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_a14f2150-6fed-418b-82e8-b8a66452236b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c8a5066810bb97ff9d10a86b40d78fd34b452b9c78bacb47b04948b16ffe251 [2022-12-14 14:16:33,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:16:33,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:16:33,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:16:33,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:16:33,467 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:16:33,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-regression/test09.c [2022-12-14 14:16:36,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:16:36,192 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:16:36,192 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/sv-benchmarks/c/ldv-regression/test09.c [2022-12-14 14:16:36,197 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/data/8b72c2797/1b57b63cdf2c44c0b9161ca03232a6e4/FLAGefe5d201e [2022-12-14 14:16:36,210 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/data/8b72c2797/1b57b63cdf2c44c0b9161ca03232a6e4 [2022-12-14 14:16:36,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:16:36,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:16:36,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:16:36,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:16:36,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:16:36,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c911b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36, skipping insertion in model container [2022-12-14 14:16:36,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:16:36,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:16:36,362 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_a14f2150-6fed-418b-82e8-b8a66452236b/sv-benchmarks/c/ldv-regression/test09.c[592,605] [2022-12-14 14:16:36,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:16:36,370 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:16:36,381 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_a14f2150-6fed-418b-82e8-b8a66452236b/sv-benchmarks/c/ldv-regression/test09.c[592,605] [2022-12-14 14:16:36,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:16:36,392 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:16:36,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36 WrapperNode [2022-12-14 14:16:36,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:16:36,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:16:36,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:16:36,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:16:36,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,418 INFO L138 Inliner]: procedures = 12, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2022-12-14 14:16:36,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:16:36,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:16:36,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:16:36,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:16:36,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:16:36,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:16:36,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:16:36,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:16:36,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (1/1) ... [2022-12-14 14:16:36,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:16:36,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:16:36,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:16:36,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:16:36,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:16:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:16:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:16:36,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:16:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:16:36,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:16:36,545 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:16:36,547 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:16:36,657 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:16:36,691 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:16:36,691 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:16:36,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:16:36 BoogieIcfgContainer [2022-12-14 14:16:36,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:16:36,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:16:36,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:16:36,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:16:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:16:36" (1/3) ... [2022-12-14 14:16:36,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e789b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:16:36, skipping insertion in model container [2022-12-14 14:16:36,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:36" (2/3) ... [2022-12-14 14:16:36,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e789b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:16:36, skipping insertion in model container [2022-12-14 14:16:36,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:16:36" (3/3) ... [2022-12-14 14:16:36,700 INFO L112 eAbstractionObserver]: Analyzing ICFG test09.c [2022-12-14 14:16:36,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:16:36,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 14:16:36,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:16:36,755 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;@190406bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:16:36,755 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 14:16:36,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:36,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 14:16:36,764 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:36,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 14:16:36,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:16:36,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:36,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1987, now seen corresponding path program 1 times [2022-12-14 14:16:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:36,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135096504] [2022-12-14 14:16:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:36,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:16:36,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:36,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135096504] [2022-12-14 14:16:36,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135096504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:36,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:36,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:16:36,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916660967] [2022-12-14 14:16:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:36,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:36,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:36,995 INFO L87 Difference]: Start difference. First operand has 14 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:16:37,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:37,020 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-12-14 14:16:37,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:37,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 14:16:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:37,029 INFO L225 Difference]: With dead ends: 14 [2022-12-14 14:16:37,029 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 14:16:37,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:37,036 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:37,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:16:37,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 14:16:37,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 14:16:37,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 11 states have internal predecessors, (11), 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 14:16:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-12-14 14:16:37,060 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 2 [2022-12-14 14:16:37,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:37,060 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-12-14 14:16:37,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:16:37,061 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-12-14 14:16:37,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 14:16:37,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:37,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 14:16:37,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:16:37,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:16:37,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:37,062 INFO L85 PathProgramCache]: Analyzing trace with hash 61633, now seen corresponding path program 1 times [2022-12-14 14:16:37,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:37,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849931896] [2022-12-14 14:16:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:37,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:16:37,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:37,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849931896] [2022-12-14 14:16:37,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849931896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:37,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:37,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:16:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400987797] [2022-12-14 14:16:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:37,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:37,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:37,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:37,148 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:37,155 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-12-14 14:16:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 14:16:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:37,156 INFO L225 Difference]: With dead ends: 12 [2022-12-14 14:16:37,156 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:16:37,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:37,157 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:37,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:16:37,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:16:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 14:16:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-12-14 14:16:37,159 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2022-12-14 14:16:37,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:37,159 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-12-14 14:16:37,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,159 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-12-14 14:16:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:16:37,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:37,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:16:37,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:16:37,160 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:16:37,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:37,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1910661, now seen corresponding path program 1 times [2022-12-14 14:16:37,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:37,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066565831] [2022-12-14 14:16:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:37,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:16:37,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:37,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066565831] [2022-12-14 14:16:37,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066565831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:37,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:37,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:16:37,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279734861] [2022-12-14 14:16:37,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:37,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:16:37,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:37,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:16:37,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:16:37,334 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:37,353 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-12-14 14:16:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:16:37,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 14:16:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:37,354 INFO L225 Difference]: With dead ends: 11 [2022-12-14 14:16:37,354 INFO L226 Difference]: Without dead ends: 10 [2022-12-14 14:16:37,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:16:37,356 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:37,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:16:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-14 14:16:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-14 14:16:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-12-14 14:16:37,358 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 4 [2022-12-14 14:16:37,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:37,359 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-12-14 14:16:37,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,359 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-12-14 14:16:37,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:16:37,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:37,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:16:37,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:16:37,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:16:37,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:37,361 INFO L85 PathProgramCache]: Analyzing trace with hash 59230531, now seen corresponding path program 1 times [2022-12-14 14:16:37,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:37,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988050123] [2022-12-14 14:16:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:37,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:16:37,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:37,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988050123] [2022-12-14 14:16:37,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988050123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:37,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:37,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:16:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9651961] [2022-12-14 14:16:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:37,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:16:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:16:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:16:37,496 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:37,513 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-12-14 14:16:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:16:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 14:16:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:37,514 INFO L225 Difference]: With dead ends: 10 [2022-12-14 14:16:37,515 INFO L226 Difference]: Without dead ends: 9 [2022-12-14 14:16:37,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:16:37,516 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:37,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:16:37,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-14 14:16:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-14 14:16:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-12-14 14:16:37,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 5 [2022-12-14 14:16:37,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:37,518 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-12-14 14:16:37,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-12-14 14:16:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:16:37,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:37,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:16:37,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:16:37,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:16:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1836146503, now seen corresponding path program 1 times [2022-12-14 14:16:37,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:37,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318570617] [2022-12-14 14:16:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:16:37,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:37,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318570617] [2022-12-14 14:16:37,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318570617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:37,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:37,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:37,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460421097] [2022-12-14 14:16:37,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:37,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:16:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:37,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:16:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:16:37,641 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:37,680 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-12-14 14:16:37,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:16:37,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 14:16:37,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:37,681 INFO L225 Difference]: With dead ends: 9 [2022-12-14 14:16:37,681 INFO L226 Difference]: Without dead ends: 8 [2022-12-14 14:16:37,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:16:37,682 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:37,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:16:37,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-12-14 14:16:37,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-14 14:16:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-12-14 14:16:37,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2022-12-14 14:16:37,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:37,685 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-12-14 14:16:37,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-12-14 14:16:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:16:37,685 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:37,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:16:37,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:16:37,686 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 14:16:37,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:37,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1085966789, now seen corresponding path program 1 times [2022-12-14 14:16:37,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:37,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453178040] [2022-12-14 14:16:37,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:37,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:16:37,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:37,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453178040] [2022-12-14 14:16:37,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453178040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:37,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:37,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:37,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80369131] [2022-12-14 14:16:37,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:37,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:16:37,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:37,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:16:37,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:16:37,751 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:37,776 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-12-14 14:16:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:16:37,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 14:16:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:37,777 INFO L225 Difference]: With dead ends: 8 [2022-12-14 14:16:37,777 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:16:37,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:16:37,778 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:37,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:16:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:16:37,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:16:37,779 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 14:16:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:16:37,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-12-14 14:16:37,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:37,779 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:16:37,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:16:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:16:37,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:16:37,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 14:16:37,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 14:16:37,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 14:16:37,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 14:16:37,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 14:16:37,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 14:16:37,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:16:37,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:16:37,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 14:16:37,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,821 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,822 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,822 INFO L899 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2022-12-14 14:16:37,822 INFO L895 garLoopResultBuilder]: At program point L10-3(line 10) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (and (= ~p1~0.offset |~#a~0.offset|) (= |ULTIMATE.start_f_#t~mem5#1| 1) (not (= ~p2~0.base |~#a~0.base|)) (<= (+ |ULTIMATE.start_f_#t~mem5#1| |ULTIMATE.start_f_#t~mem4#1|) (+ 2147483643 |ULTIMATE.start_f_#t~mem6#1|)) (= |~#a~0.base| ~p1~0.base) (<= |ULTIMATE.start_f_#t~mem6#1| |ULTIMATE.start_f_#t~mem4#1|) (<= .cse0 |ULTIMATE.start_f_#t~mem4#1|) (<= |ULTIMATE.start_f_#t~mem4#1| 4) (<= 4 .cse0) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1))) [2022-12-14 14:16:37,825 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 14:16:37,827 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:16:37,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:16:37 BoogieIcfgContainer [2022-12-14 14:16:37,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:16:37,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:16:37,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:16:37,839 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:16:37,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:16:36" (3/4) ... [2022-12-14 14:16:37,842 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:16:37,848 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 14:16:37,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 14:16:37,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:16:37,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:16:37,872 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:16:37,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:16:37,873 INFO L158 Benchmark]: Toolchain (without parser) took 1659.84ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 86.5MB in the end (delta: 21.5MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-12-14 14:16:37,873 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:16:37,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.56ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 97.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 14:16:37,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.75ms. Allocated memory is still 159.4MB. Free memory was 97.9MB in the beginning and 96.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:16:37,874 INFO L158 Benchmark]: Boogie Preprocessor took 14.90ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 95.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:16:37,874 INFO L158 Benchmark]: RCFGBuilder took 259.26ms. Allocated memory is still 159.4MB. Free memory was 95.4MB in the beginning and 81.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:16:37,874 INFO L158 Benchmark]: TraceAbstraction took 1143.51ms. Allocated memory is still 159.4MB. Free memory was 80.7MB in the beginning and 89.6MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:16:37,874 INFO L158 Benchmark]: Witness Printer took 33.51ms. Allocated memory is still 159.4MB. Free memory was 89.6MB in the beginning and 86.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:16:37,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.56ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 97.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.75ms. Allocated memory is still 159.4MB. Free memory was 97.9MB in the beginning and 96.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.90ms. Allocated memory is still 159.4MB. Free memory was 96.5MB in the beginning and 95.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.26ms. Allocated memory is still 159.4MB. Free memory was 95.4MB in the beginning and 81.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1143.51ms. Allocated memory is still 159.4MB. Free memory was 80.7MB in the beginning and 89.6MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.51ms. Allocated memory is still 159.4MB. Free memory was 89.6MB in the beginning and 86.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 16 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 48 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((p1 == a && aux-p2-aux == 1) && !(p2 == a)) && aux-p2-aux + aux-p1-aux <= 2147483643 + aux-a-aux) && a == p1) && aux-a-aux <= aux-p1-aux) && unknown-#memory_int-unknown[a][a] <= aux-p1-aux) && aux-p1-aux <= 4) && 4 <= unknown-#memory_int-unknown[a][a]) && unknown-#memory_int-unknown[p2][p2] == 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:16:37,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a14f2150-6fed-418b-82e8-b8a66452236b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE