./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety/20051113-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/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_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/memsafety/20051113-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/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_a6bf8176-5b99-45c5-8661-c1c240dc9585/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 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 --- 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 12:31:38,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:31:38,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:31:38,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:31:38,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:31:38,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:31:38,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:31:38,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:31:38,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:31:38,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:31:38,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:31:38,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:31:38,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:31:38,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:31:38,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:31:38,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:31:38,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:31:38,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:31:38,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:31:38,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:31:38,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:31:38,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:31:38,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:31:38,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:31:38,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:31:38,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:31:38,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:31:38,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:31:38,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:31:38,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:31:38,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:31:38,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:31:38,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:31:38,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:31:38,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:31:38,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:31:38,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:31:38,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:31:38,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:31:38,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:31:38,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:31:38,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 12:31:38,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:31:38,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:31:38,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:31:38,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:31:38,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:31:38,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:31:38,274 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:31:38,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:31:38,274 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:31:38,274 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:31:38,274 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:31:38,275 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:31:38,275 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:31:38,275 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:31:38,275 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:31:38,275 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:31:38,276 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:31:38,276 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:31:38,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:31:38,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:31:38,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:31:38,277 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:31:38,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:31:38,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:31:38,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:31:38,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:31:38,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:31:38,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:31:38,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:31:38,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:31:38,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:31:38,280 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_a6bf8176-5b99-45c5-8661-c1c240dc9585/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 [2022-12-14 12:31:38,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:31:38,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:31:38,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:31:38,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:31:38,495 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:31:38,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/memsafety/20051113-1.i [2022-12-14 12:31:41,153 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:31:41,363 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:31:41,363 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/sv-benchmarks/c/memsafety/20051113-1.i [2022-12-14 12:31:41,376 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/data/de66465b4/2d63c6d48d124b25bc9aaa60aa283eeb/FLAGdf4e273a5 [2022-12-14 12:31:41,389 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/data/de66465b4/2d63c6d48d124b25bc9aaa60aa283eeb [2022-12-14 12:31:41,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:31:41,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:31:41,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:31:41,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:31:41,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:31:41,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8a7b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41, skipping insertion in model container [2022-12-14 12:31:41,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:31:41,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:31:41,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:31:41,637 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:31:41,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:31:41,685 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:31:41,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41 WrapperNode [2022-12-14 12:31:41,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:31:41,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:31:41,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:31:41,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:31:41,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,720 INFO L138 Inliner]: procedures = 125, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2022-12-14 12:31:41,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:31:41,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:31:41,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:31:41,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:31:41,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,740 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:31:41,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:31:41,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:31:41,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:31:41,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (1/1) ... [2022-12-14 12:31:41,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:31:41,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:41,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:31:41,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:31:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:31:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:31:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:31:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:31:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_abort [2022-12-14 12:31:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_abort [2022-12-14 12:31:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:31:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:31:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:31:41,887 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:31:41,888 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:31:42,020 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:31:42,055 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:31:42,055 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 12:31:42,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:31:42 BoogieIcfgContainer [2022-12-14 12:31:42,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:31:42,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:31:42,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:31:42,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:31:42,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:31:41" (1/3) ... [2022-12-14 12:31:42,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84e6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:31:42, skipping insertion in model container [2022-12-14 12:31:42,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:31:41" (2/3) ... [2022-12-14 12:31:42,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84e6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:31:42, skipping insertion in model container [2022-12-14 12:31:42,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:31:42" (3/3) ... [2022-12-14 12:31:42,065 INFO L112 eAbstractionObserver]: Analyzing ICFG 20051113-1.i [2022-12-14 12:31:42,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:31:42,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 12:31:42,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:31:42,141 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;@60b8cfaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:31:42,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 12:31:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:31:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:31:42,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:42,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:31:42,151 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 12:31:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:42,155 INFO L85 PathProgramCache]: Analyzing trace with hash 109588309, now seen corresponding path program 1 times [2022-12-14 12:31:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:42,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144542968] [2022-12-14 12:31:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:42,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:42,367 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 12:31:42,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:42,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144542968] [2022-12-14 12:31:42,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144542968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:42,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:31:42,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:31:42,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703070348] [2022-12-14 12:31:42,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:42,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:31:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:42,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:31:42,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:31:42,409 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 12:31:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:42,483 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2022-12-14 12:31:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:31:42,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 12:31:42,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:42,490 INFO L225 Difference]: With dead ends: 75 [2022-12-14 12:31:42,490 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 12:31:42,492 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 12:31:42,495 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 23 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:42,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 75 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 12:31:42,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2022-12-14 12:31:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-12-14 12:31:42,535 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 5 [2022-12-14 12:31:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:42,536 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-12-14 12:31:42,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 12:31:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-12-14 12:31:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:31:42,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:42,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-14 12:31:42,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:31:42,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash 497068143, now seen corresponding path program 1 times [2022-12-14 12:31:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:42,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742175322] [2022-12-14 12:31:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:31:42,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:42,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742175322] [2022-12-14 12:31:42,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742175322] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49417044] [2022-12-14 12:31:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:42,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:42,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:42,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:42,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:31:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:42,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:31:42,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:31:42,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:31:42,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49417044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:42,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:31:42,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 12:31:42,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833319214] [2022-12-14 12:31:42,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:42,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:31:42,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:31:42,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:31:42,810 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:42,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:42,871 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-12-14 12:31:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:31:42,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 12:31:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:42,873 INFO L225 Difference]: With dead ends: 42 [2022-12-14 12:31:42,873 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 12:31:42,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:31:42,874 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 39 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:42,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 81 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:42,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 12:31:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2022-12-14 12:31:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-12-14 12:31:42,881 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2022-12-14 12:31:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:42,881 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-12-14 12:31:42,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:42,882 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-12-14 12:31:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 12:31:42,882 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:42,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:42,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:31:43,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-14 12:31:43,083 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 12:31:43,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1894381704, now seen corresponding path program 1 times [2022-12-14 12:31:43,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:43,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142299693] [2022-12-14 12:31:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:43,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:43,251 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 12:31:43,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:43,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142299693] [2022-12-14 12:31:43,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142299693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:43,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:31:43,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:31:43,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000074305] [2022-12-14 12:31:43,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:43,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:31:43,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:43,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:31:43,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:31:43,253 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 12:31:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:43,295 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-12-14 12:31:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:31:43,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Word has length 10 [2022-12-14 12:31:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:43,296 INFO L225 Difference]: With dead ends: 43 [2022-12-14 12:31:43,296 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 12:31:43,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 12:31:43,297 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:43,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 12:31:43,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 12:31:43,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-12-14 12:31:43,301 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2022-12-14 12:31:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:43,301 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-12-14 12:31:43,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 12:31:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-12-14 12:31:43,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 12:31:43,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:43,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-14 12:31:43,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:31:43,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:43,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:43,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1770756695, now seen corresponding path program 1 times [2022-12-14 12:31:43,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:43,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989009636] [2022-12-14 12:31:43,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:43,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:31:43,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:43,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989009636] [2022-12-14 12:31:43,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989009636] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:43,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402164934] [2022-12-14 12:31:43,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:43,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:43,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:43,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:31:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:43,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:31:43,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:31:43,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:31:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:31:43,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402164934] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:31:43,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1388258865] [2022-12-14 12:31:43,497 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 12:31:43,498 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:31:43,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:31:43,507 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:31:43,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:43,590 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:31:43,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:31:43,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 12:31:43,636 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 12:31:43,639 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:31:43,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1388258865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:43,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:31:43,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 13 [2022-12-14 12:31:43,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170098401] [2022-12-14 12:31:43,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:43,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:31:43,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:43,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:31:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:31:43,723 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 12:31:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:43,756 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-12-14 12:31:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:31:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 10 [2022-12-14 12:31:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:43,757 INFO L225 Difference]: With dead ends: 53 [2022-12-14 12:31:43,758 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 12:31:43,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:31:43,759 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:43,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:43,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 12:31:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-14 12:31:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-12-14 12:31:43,762 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2022-12-14 12:31:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:43,763 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-12-14 12:31:43,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 12:31:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-12-14 12:31:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 12:31:43,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:43,763 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 12:31:43,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:31:43,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:43,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:43,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash 181418730, now seen corresponding path program 1 times [2022-12-14 12:31:43,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:43,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252342374] [2022-12-14 12:31:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:43,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:44,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:44,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252342374] [2022-12-14 12:31:44,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252342374] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:44,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538063257] [2022-12-14 12:31:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:44,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:44,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:44,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:44,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:31:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:44,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:31:44,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:44,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:31:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:44,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538063257] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:31:44,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [452444133] [2022-12-14 12:31:44,232 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 12:31:44,232 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:31:44,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:31:44,233 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:31:44,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:44,269 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:31:44,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:31:44,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 12:31:44,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 12:31:44,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:31:44,396 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-12-14 12:31:44,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-12-14 12:31:44,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:31:44,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:44,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:44,668 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:31:45,075 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '629#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (< 2147483646 |ULTIMATE.start_Sum_#t~post6#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (< |ULTIMATE.start_Sum_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_Sum_#t~post6#1| |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 12:31:45,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:31:45,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:31:45,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 12:31:45,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898489255] [2022-12-14 12:31:45,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:31:45,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 12:31:45,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 12:31:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-12-14 12:31:45,077 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:45,180 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2022-12-14 12:31:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 12:31:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 12:31:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:45,182 INFO L225 Difference]: With dead ends: 83 [2022-12-14 12:31:45,182 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 12:31:45,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2022-12-14 12:31:45,183 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 72 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:45,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 169 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:31:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 12:31:45,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 40. [2022-12-14 12:31:45,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2022-12-14 12:31:45,191 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 11 [2022-12-14 12:31:45,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:45,191 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2022-12-14 12:31:45,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2022-12-14 12:31:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 12:31:45,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:45,192 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:45,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:31:45,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:45,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:45,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1505524575, now seen corresponding path program 1 times [2022-12-14 12:31:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:45,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771746687] [2022-12-14 12:31:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:45,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:45,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771746687] [2022-12-14 12:31:45,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771746687] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:45,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883315799] [2022-12-14 12:31:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:45,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:45,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:45,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:45,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:31:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:45,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 12:31:45,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:45,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:45,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:45,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:45,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:45,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:45,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:45,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:45,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 12:31:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 12:31:45,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:31:45,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883315799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:45,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:31:45,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-12-14 12:31:45,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863574406] [2022-12-14 12:31:45,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:45,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:31:45,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:45,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:31:45,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:31:45,696 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:45,781 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-12-14 12:31:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:31:45,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 12:31:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:45,782 INFO L225 Difference]: With dead ends: 50 [2022-12-14 12:31:45,782 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 12:31:45,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:31:45,783 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:45,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 42 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 12:31:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-12-14 12:31:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 41 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-12-14 12:31:45,790 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 15 [2022-12-14 12:31:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:45,790 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-12-14 12:31:45,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:45,791 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-12-14 12:31:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 12:31:45,791 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:45,791 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:45,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 12:31:45,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:45,993 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash -573378348, now seen corresponding path program 1 times [2022-12-14 12:31:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:45,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379643397] [2022-12-14 12:31:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:45,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:46,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:46,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379643397] [2022-12-14 12:31:46,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379643397] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:46,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750303574] [2022-12-14 12:31:46,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:46,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:46,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:46,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:46,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:31:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:46,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 12:31:46,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:46,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:46,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:46,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:46,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 12:31:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 12:31:46,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:31:46,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750303574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:46,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:31:46,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-12-14 12:31:46,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486918661] [2022-12-14 12:31:46,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:46,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:31:46,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:46,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:31:46,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:31:46,379 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:46,451 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-12-14 12:31:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:31:46,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 12:31:46,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:46,452 INFO L225 Difference]: With dead ends: 45 [2022-12-14 12:31:46,452 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 12:31:46,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:31:46,453 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:46,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 42 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:46,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 12:31:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 12:31:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 42 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-12-14 12:31:46,459 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 16 [2022-12-14 12:31:46,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:46,459 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-12-14 12:31:46,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:46,460 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-12-14 12:31:46,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 12:31:46,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:46,460 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:46,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 12:31:46,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:46,661 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:46,662 INFO L85 PathProgramCache]: Analyzing trace with hash -594858494, now seen corresponding path program 1 times [2022-12-14 12:31:46,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:46,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221140598] [2022-12-14 12:31:46,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:46,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 12:31:46,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:46,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221140598] [2022-12-14 12:31:46,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221140598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:31:46,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:31:46,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:31:46,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482052274] [2022-12-14 12:31:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:31:46,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:31:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:46,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:31:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:31:46,709 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:46,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:46,740 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-12-14 12:31:46,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:31:46,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 12:31:46,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:46,741 INFO L225 Difference]: With dead ends: 48 [2022-12-14 12:31:46,741 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 12:31:46,742 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 12:31:46,742 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 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 12:31:46,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:31:46,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 12:31:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 12:31:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 44 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:46,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-12-14 12:31:46,748 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-12-14 12:31:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:46,749 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-12-14 12:31:46,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:31:46,749 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-12-14 12:31:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 12:31:46,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:46,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:46,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:31:46,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:46,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:46,750 INFO L85 PathProgramCache]: Analyzing trace with hash 663351733, now seen corresponding path program 1 times [2022-12-14 12:31:46,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:46,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924613937] [2022-12-14 12:31:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:46,869 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 12:31:46,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:46,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924613937] [2022-12-14 12:31:46,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924613937] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941230051] [2022-12-14 12:31:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:46,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:46,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:46,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:46,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:31:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:46,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 12:31:46,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:46,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 12:31:47,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 12:31:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:47,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:31:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 12:31:47,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941230051] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:31:47,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1577005529] [2022-12-14 12:31:47,317 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 12:31:47,317 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:31:47,317 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:31:47,317 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:31:47,318 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:47,353 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:31:47,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 12:31:47,380 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:31:47,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:31:47,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 12:31:47,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:31:47,475 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-12-14 12:31:47,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-12-14 12:31:47,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:31:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:47,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:48,055 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:31:51,528 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1410#(and (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (or (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (and (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|))) (or (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|)) (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= |ULTIMATE.start_Sum2_~i~1#1| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-12-14 12:31:51,528 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:31:51,528 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:31:51,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 25 [2022-12-14 12:31:51,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384919677] [2022-12-14 12:31:51,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:31:51,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 12:31:51,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:51,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 12:31:51,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1398, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 12:31:51,529 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 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 12:31:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:51,919 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2022-12-14 12:31:51,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 12:31:51,919 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 12:31:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:51,920 INFO L225 Difference]: With dead ends: 80 [2022-12-14 12:31:51,920 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 12:31:51,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=315, Invalid=2337, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 12:31:51,921 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 61 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:51,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 191 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:31:51,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 12:31:51,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 12:31:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 44 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:51,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-12-14 12:31:51,924 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 21 [2022-12-14 12:31:51,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:51,924 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-12-14 12:31:51,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 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 12:31:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-12-14 12:31:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 12:31:51,925 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:51,925 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1] [2022-12-14 12:31:51,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 12:31:52,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 12:31:52,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:52,128 INFO L85 PathProgramCache]: Analyzing trace with hash 188108252, now seen corresponding path program 2 times [2022-12-14 12:31:52,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:52,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663354630] [2022-12-14 12:31:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 12:31:52,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:52,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663354630] [2022-12-14 12:31:52,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663354630] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:52,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456872805] [2022-12-14 12:31:52,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 12:31:52,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:52,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:52,354 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:52,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 12:31:52,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 12:31:52,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:31:52,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 12:31:52,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:52,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 50 [2022-12-14 12:31:52,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 12:31:52,504 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 12:31:52,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:31:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 12:31:52,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456872805] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:31:52,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1275377356] [2022-12-14 12:31:52,556 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 12:31:52,556 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:31:52,556 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:31:52,556 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:31:52,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:52,581 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:31:52,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 12:31:52,603 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:31:52,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:31:52,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-12-14 12:31:52,682 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-12-14 12:31:52,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-12-14 12:31:52,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:31:52,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:52,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:52,840 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:31:53,318 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1757#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (< 2147483646 |ULTIMATE.start_Sum_#t~post6#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (< |ULTIMATE.start_Sum_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_Sum_#t~post6#1| |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 12:31:53,318 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:31:53,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:31:53,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 17 [2022-12-14 12:31:53,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977063497] [2022-12-14 12:31:53,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:31:53,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 12:31:53,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 12:31:53,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2022-12-14 12:31:53,320 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 12:31:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:53,564 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2022-12-14 12:31:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 12:31:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 23 [2022-12-14 12:31:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:53,564 INFO L225 Difference]: With dead ends: 68 [2022-12-14 12:31:53,565 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 12:31:53,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=874, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 12:31:53,566 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 61 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:53,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 101 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:31:53,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 12:31:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 12:31:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 37 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-12-14 12:31:53,569 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 23 [2022-12-14 12:31:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:53,570 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-12-14 12:31:53,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 12:31:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-12-14 12:31:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 12:31:53,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:53,570 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:53,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 12:31:53,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 12:31:53,772 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:53,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:53,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1734869759, now seen corresponding path program 2 times [2022-12-14 12:31:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:53,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903818799] [2022-12-14 12:31:53,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:53,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 12:31:53,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:53,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903818799] [2022-12-14 12:31:53,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903818799] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:53,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400317221] [2022-12-14 12:31:53,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 12:31:53,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:53,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:53,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:53,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 12:31:53,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 12:31:53,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:31:53,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 12:31:53,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:54,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:54,278 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:31:54,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 16 [2022-12-14 12:31:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 12:31:54,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:31:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 12:31:54,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400317221] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:31:54,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1470432848] [2022-12-14 12:31:54,415 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 12:31:54,415 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:31:54,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:31:54,416 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:31:54,416 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:54,449 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:31:54,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:31:54,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 12:31:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-12-14 12:31:54,524 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-12-14 12:31:54,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-12-14 12:31:54,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:31:54,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:54,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:55,027 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:31:57,834 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2104#(and (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (or (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (and (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|))) (or (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|)) (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= |ULTIMATE.start_Sum2_~i~1#1| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-12-14 12:31:57,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:31:57,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:31:57,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 17 [2022-12-14 12:31:57,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057931664] [2022-12-14 12:31:57,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:31:57,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 12:31:57,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:31:57,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 12:31:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2022-12-14 12:31:57,835 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 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 12:31:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:31:58,234 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2022-12-14 12:31:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 12:31:58,235 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 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 29 [2022-12-14 12:31:58,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:31:58,235 INFO L225 Difference]: With dead ends: 90 [2022-12-14 12:31:58,235 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 12:31:58,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=223, Invalid=1499, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 12:31:58,236 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 53 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:31:58,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 74 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:31:58,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 12:31:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2022-12-14 12:31:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 47 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:31:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-12-14 12:31:58,240 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 29 [2022-12-14 12:31:58,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:31:58,240 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-12-14 12:31:58,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 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 12:31:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-12-14 12:31:58,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 12:31:58,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:31:58,241 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:31:58,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 12:31:58,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 12:31:58,442 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:31:58,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:31:58,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1436725709, now seen corresponding path program 1 times [2022-12-14 12:31:58,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:31:58,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412899894] [2022-12-14 12:31:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:58,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:31:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 12:31:58,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:31:58,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412899894] [2022-12-14 12:31:58,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412899894] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:31:58,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774262250] [2022-12-14 12:31:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:31:58,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:31:58,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:31:58,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:31:58,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 12:31:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:31:58,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 12:31:58,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:31:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:58,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:58,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:58,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:58,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:58,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:31:58,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 12:31:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 12:31:58,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:31:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 12:31:58,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774262250] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:31:58,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1407011367] [2022-12-14 12:31:58,985 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 12:31:58,985 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:31:58,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:31:58,986 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:31:58,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:31:59,011 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:31:59,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 12:31:59,038 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:31:59,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:31:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-12-14 12:31:59,112 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-12-14 12:31:59,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-12-14 12:31:59,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:31:59,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:31:59,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:31:59,566 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:32:02,092 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2514#(and (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-12-14 12:32:02,093 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:32:02,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:32:02,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 18 [2022-12-14 12:32:02,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547377602] [2022-12-14 12:32:02,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:32:02,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 12:32:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:02,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 12:32:02,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2022-12-14 12:32:02,095 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 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 12:32:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:02,474 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2022-12-14 12:32:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 12:32:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 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 31 [2022-12-14 12:32:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:02,475 INFO L225 Difference]: With dead ends: 97 [2022-12-14 12:32:02,475 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 12:32:02,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=202, Invalid=1520, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 12:32:02,477 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 59 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:02,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 105 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:32:02,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 12:32:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2022-12-14 12:32:02,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 48 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:32:02,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-12-14 12:32:02,484 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 31 [2022-12-14 12:32:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:02,484 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-12-14 12:32:02,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 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 12:32:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-12-14 12:32:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 12:32:02,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:32:02,485 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:32:02,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 12:32:02,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 12:32:02,686 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:32:02,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:32:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1434289404, now seen corresponding path program 1 times [2022-12-14 12:32:02,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:32:02,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168964824] [2022-12-14 12:32:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:32:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:02,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:32:02,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168964824] [2022-12-14 12:32:02,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168964824] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:32:02,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735159593] [2022-12-14 12:32:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:02,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:32:02,779 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:32:02,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 12:32:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:02,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:32:02,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:32:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:02,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:32:02,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735159593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:32:02,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:32:02,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 12:32:02,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305197848] [2022-12-14 12:32:02,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:32:02,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:32:02,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:02,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:32:02,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:32:02,859 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:32:02,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:02,902 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-12-14 12:32:02,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:32:02,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 12:32:02,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:02,903 INFO L225 Difference]: With dead ends: 50 [2022-12-14 12:32:02,903 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 12:32:02,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:32:02,904 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:02,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:32:02,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 12:32:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-12-14 12:32:02,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 47 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:32:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-12-14 12:32:02,910 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 33 [2022-12-14 12:32:02,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:02,910 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-12-14 12:32:02,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:32:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-12-14 12:32:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 12:32:02,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:32:02,911 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:32:02,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 12:32:03,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:03,113 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:32:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:32:03,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1513298475, now seen corresponding path program 1 times [2022-12-14 12:32:03,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:32:03,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645057665] [2022-12-14 12:32:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:03,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:32:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:03,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:32:03,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645057665] [2022-12-14 12:32:03,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645057665] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:32:03,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347194520] [2022-12-14 12:32:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:03,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:03,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:32:03,198 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:32:03,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 12:32:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:03,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 12:32:03,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:32:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:03,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:32:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:03,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347194520] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:32:03,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [429891257] [2022-12-14 12:32:03,309 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 12:32:03,309 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:32:03,309 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:32:03,310 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:32:03,310 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:32:03,338 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:32:03,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 12:32:03,363 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:32:03,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:32:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 12:32:03,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:32:03,431 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-12-14 12:32:03,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-12-14 12:32:03,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:32:03,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:03,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:32:03,867 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:32:06,207 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3183#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (< 2147483646 |ULTIMATE.start_Sum2_#t~post9#1|) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-12-14 12:32:06,207 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:32:06,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:32:06,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 12:32:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90426257] [2022-12-14 12:32:06,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:32:06,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 12:32:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:06,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 12:32:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2022-12-14 12:32:06,208 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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 12:32:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:06,275 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-12-14 12:32:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 12:32:06,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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 34 [2022-12-14 12:32:06,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:06,276 INFO L225 Difference]: With dead ends: 62 [2022-12-14 12:32:06,276 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 12:32:06,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2022-12-14 12:32:06,277 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:06,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 109 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:32:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 12:32:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2022-12-14 12:32:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:32:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-12-14 12:32:06,281 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 34 [2022-12-14 12:32:06,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:06,281 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-12-14 12:32:06,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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 12:32:06,281 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-12-14 12:32:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 12:32:06,281 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:32:06,282 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:32:06,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 12:32:06,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 12:32:06,483 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:32:06,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:32:06,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2035365508, now seen corresponding path program 2 times [2022-12-14 12:32:06,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:32:06,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000952189] [2022-12-14 12:32:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:06,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:32:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 12:32:06,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:32:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000952189] [2022-12-14 12:32:06,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000952189] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:32:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898208049] [2022-12-14 12:32:06,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 12:32:06,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:06,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:32:06,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:32:06,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 12:32:07,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 12:32:07,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:32:07,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-14 12:32:07,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:32:07,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 23 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:32:07,454 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:32:07,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 21 [2022-12-14 12:32:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:07,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:32:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:32:07,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898208049] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:32:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500502687] [2022-12-14 12:32:07,656 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 12:32:07,656 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:32:07,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:32:07,656 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:32:07,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:32:07,677 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:32:07,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:32:07,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 12:32:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 12:32:07,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:32:07,745 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-12-14 12:32:07,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-12-14 12:32:07,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:32:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:07,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:32:08,216 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:32:11,121 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3604#(and (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-12-14 12:32:11,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:32:11,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:32:11,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 25 [2022-12-14 12:32:11,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636873320] [2022-12-14 12:32:11,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:32:11,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 12:32:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:11,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 12:32:11,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1334, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 12:32:11,123 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 25 states, 25 states have (on average 2.96) internal successors, (74), 25 states have internal predecessors, (74), 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 12:32:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:11,986 INFO L93 Difference]: Finished difference Result 112 states and 122 transitions. [2022-12-14 12:32:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 12:32:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.96) internal successors, (74), 25 states have internal predecessors, (74), 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 38 [2022-12-14 12:32:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:11,987 INFO L225 Difference]: With dead ends: 112 [2022-12-14 12:32:11,987 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 12:32:11,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=275, Invalid=2481, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 12:32:11,988 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 95 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:11,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 144 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:32:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 12:32:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-12-14 12:32:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 57 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:32:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-12-14 12:32:11,992 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 38 [2022-12-14 12:32:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:11,992 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-12-14 12:32:11,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.96) internal successors, (74), 25 states have internal predecessors, (74), 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 12:32:11,992 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-12-14 12:32:11,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 12:32:11,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:32:11,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:32:11,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 12:32:12,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 12:32:12,194 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:32:12,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:32:12,195 INFO L85 PathProgramCache]: Analyzing trace with hash 994498796, now seen corresponding path program 3 times [2022-12-14 12:32:12,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:32:12,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332970802] [2022-12-14 12:32:12,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:32:12,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:32:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:32:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 12:32:12,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:32:12,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332970802] [2022-12-14 12:32:12,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332970802] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:32:12,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560860440] [2022-12-14 12:32:12,623 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 12:32:12,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:32:12,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:32:12,624 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:32:12,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 12:32:12,702 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 12:32:12,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:32:12,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 12:32:12,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:32:12,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 12:32:13,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 12:32:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 12:32:13,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:32:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 12:32:13,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560860440] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:32:13,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1377006] [2022-12-14 12:32:13,494 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 12:32:13,494 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:32:13,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:32:13,495 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:32:13,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:32:13,525 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:32:13,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 12:32:13,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 12:32:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 12:32:13,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:32:13,594 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-12-14 12:32:13,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-12-14 12:32:13,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 12:32:13,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:32:13,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-12-14 12:32:14,039 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:32:17,174 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4169#(and (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (or (and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (= |ULTIMATE.start_Sum2_~i~1#1| 0) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-12-14 12:32:17,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:32:17,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:32:17,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 48 [2022-12-14 12:32:17,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957491936] [2022-12-14 12:32:17,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:32:17,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 12:32:17,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:32:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 12:32:17,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=3466, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 12:32:17,177 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 48 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 48 states have internal predecessors, (103), 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 12:32:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:32:17,770 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-12-14 12:32:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 12:32:17,770 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 48 states have internal predecessors, (103), 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 44 [2022-12-14 12:32:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:32:17,770 INFO L225 Difference]: With dead ends: 59 [2022-12-14 12:32:17,770 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 12:32:17,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 83 SyntacticMatches, 7 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=768, Invalid=5712, Unknown=0, NotChecked=0, Total=6480 [2022-12-14 12:32:17,772 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 90 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:32:17,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 125 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:32:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 12:32:17,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 12:32:17,772 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 12:32:17,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 12:32:17,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-12-14 12:32:17,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:32:17,773 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 12:32:17,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 48 states have internal predecessors, (103), 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 12:32:17,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 12:32:17,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 12:32:17,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 12:32:17,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 12:32:17,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 12:32:17,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 12:32:17,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 12:32:17,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 12:32:17,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 12:32:17,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 12:32:17,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 12:32:18,939 INFO L902 garLoopResultBuilder]: At program point dummy_abortFINAL(lines 571 573) the Hoare annotation is: true [2022-12-14 12:32:18,940 INFO L899 garLoopResultBuilder]: For program point dummy_abortEXIT(lines 571 573) no Hoare annotation was computed. [2022-12-14 12:32:18,940 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-12-14 12:32:18,940 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 556 558) no Hoare annotation was computed. [2022-12-14 12:32:18,940 INFO L895 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse6 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 18)))) (let ((.cse1 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse2 (<= 555 .cse6)) (.cse3 (<= .cse6 555))) (or (and (<= (select .cse0 |ULTIMATE.start_main_~p~0#1.offset|) 1) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) .cse1 .cse2 .cse3) (let ((.cse4 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse5 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 48)))) (and (<= .cse4 4311810305) (= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) 3) (<= .cse5 999) (= (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 70)) 4311810305) (<= 3 |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 4311810305 .cse4) (<= 999 .cse5) .cse1 .cse2 .cse3)))))) [2022-12-14 12:32:18,940 INFO L899 garLoopResultBuilder]: For program point L556-4(line 556) no Hoare annotation was computed. [2022-12-14 12:32:18,940 INFO L899 garLoopResultBuilder]: For program point L556-5(line 556) no Hoare annotation was computed. [2022-12-14 12:32:18,940 INFO L895 garLoopResultBuilder]: At program point L556-6(lines 556 558) the Hoare annotation is: (let ((.cse15 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse12 (select .cse15 (+ |ULTIMATE.start_main_~p~0#1.offset| 18))) (.cse13 (select .cse15 (+ |ULTIMATE.start_main_~p~0#1.offset| 48))) (.cse11 (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse14 (select .cse15 (+ |ULTIMATE.start_main_~p~0#1.offset| 78)))) (let ((.cse0 (<= .cse14 4311810305)) (.cse1 (= .cse11 3)) (.cse2 (<= .cse13 999)) (.cse3 (= (select .cse15 (+ |ULTIMATE.start_main_~p~0#1.offset| 70)) 4311810305)) (.cse4 (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|)) (.cse5 (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse6 (<= 4311810305 .cse14)) (.cse7 (<= 999 .cse13)) (.cse8 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse9 (<= 555 .cse12)) (.cse10 (<= .cse12 555))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_Sum_~i~0#1| 1) .cse4 .cse5 .cse6 .cse7 .cse8 (<= 1 |ULTIMATE.start_Sum_~i~0#1|) .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 (<= 3 |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= |ULTIMATE.start_Sum_~i~0#1| 0) .cse9 .cse10) (and (<= 2 |ULTIMATE.start_Sum_~i~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (< |ULTIMATE.start_Sum_~i~0#1| .cse11) .cse8 .cse9 .cse10))))) [2022-12-14 12:32:18,940 INFO L895 garLoopResultBuilder]: At program point L556-7(lines 556 558) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse6 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 18)))) (let ((.cse1 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse2 (<= 555 .cse6)) (.cse3 (<= .cse6 555))) (or (and (<= (select .cse0 |ULTIMATE.start_main_~p~0#1.offset|) 1) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) .cse1 .cse2 .cse3) (let ((.cse4 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse5 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 48)))) (and (<= .cse4 4311810305) (= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) 3) (<= .cse5 999) (= (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 70)) 4311810305) (<= 3 |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 4311810305 .cse4) (<= 999 .cse5) .cse1 .cse2 .cse3)))))) [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (= |ULTIMATE.start_main_~p~0#1.offset| 0) [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 587) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L902 garLoopResultBuilder]: At program point L586-1(lines 586 587) the Hoare annotation is: true [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point L566-4(line 566) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L899 garLoopResultBuilder]: For program point L566-5(line 566) no Hoare annotation was computed. [2022-12-14 12:32:18,941 INFO L895 garLoopResultBuilder]: At program point L566-6(lines 566 568) the Hoare annotation is: (let ((.cse29 (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|)) (.cse37 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse31 (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 18))) (.cse34 (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 48))) (.cse35 (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse28 (select .cse29 (+ 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse36 (select .cse29 (+ 78 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse32 (select .cse29 (+ 48 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse33 (select .cse29 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (let ((.cse2 (<= (select .cse37 |ULTIMATE.start_main_~p~0#1.offset|) 1)) (.cse3 (<= .cse33 1)) (.cse7 (<= 0 |ULTIMATE.start_Sum_~i~0#1|)) (.cse0 (= |ULTIMATE.start_Sum2_~i~1#1| 0)) (.cse5 (<= |ULTIMATE.start_Sum2_~count~1#1| 0)) (.cse6 (<= 0 |ULTIMATE.start_Sum2_~count~1#1|)) (.cse23 (<= 999 .cse32)) (.cse25 (<= 4311810305 .cse36)) (.cse9 (<= 555 .cse28)) (.cse12 (<= .cse35 4311810305)) (.cse13 (= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) 3)) (.cse14 (<= .cse34 999)) (.cse15 (= (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 70)) 4311810305)) (.cse24 (<= .cse36 4311810305)) (.cse1 (= |ULTIMATE.start_Sum2_~instrs#1.offset| 0)) (.cse16 (<= 3 |ULTIMATE.start_Sum_~i~0#1|)) (.cse17 (<= |ULTIMATE.start_Sum_~i~0#1| 3)) (.cse18 (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|)) (.cse19 (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse4 (<= .cse28 555)) (.cse20 (<= 4311810305 .cse35)) (.cse21 (<= 999 .cse34)) (.cse22 (<= .cse33 3)) (.cse8 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse26 (= (select .cse29 (+ |ULTIMATE.start_Sum2_~instrs#1.offset| 70)) 4311810305)) (.cse10 (<= 555 .cse31)) (.cse27 (<= .cse32 999)) (.cse11 (<= .cse31 555))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse15 .cse1 .cse16 (<= 3 |ULTIMATE.start_Sum2_~i~1#1|) .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (< |ULTIMATE.start_Sum2_~i~1#1| 2147483647) .cse8 .cse10 .cse11) (and (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) .cse1 .cse2 .cse3 .cse7 .cse8 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse0 .cse15 .cse23 .cse24 .cse1 .cse16 .cse17 .cse18 .cse19 .cse4 .cse20 .cse5 .cse21 .cse22 .cse25 .cse6 .cse8 .cse26 .cse9 .cse10 .cse27 .cse11) (and .cse12 .cse13 (<= .cse28 |ULTIMATE.start_Sum2_~count~1#1|) .cse14 .cse15 .cse23 .cse24 .cse1 .cse16 .cse17 .cse18 .cse19 .cse4 .cse20 .cse21 .cse22 .cse25 (= |ULTIMATE.start_Sum2_~i~1#1| 1) .cse8 .cse26 .cse9 .cse10 (<= |ULTIMATE.start_Sum2_~count~1#1| .cse28) .cse27 .cse11) (let ((.cse30 (* 30 |ULTIMATE.start_Sum2_~i~1#1|))) (and .cse12 .cse13 .cse14 .cse15 .cse24 .cse1 .cse16 (< 0 (+ 9223372036854775809 (select .cse29 (+ .cse30 18 |ULTIMATE.start_Sum2_~instrs#1.offset|)) |ULTIMATE.start_Sum2_~count~1#1|)) .cse17 .cse18 .cse19 .cse4 .cse20 .cse21 (= 2 |ULTIMATE.start_Sum2_~i~1#1|) .cse22 (<= |ULTIMATE.start_Sum2_~count~1#1| (+ .cse28 (select .cse29 (+ .cse30 (- 12) |ULTIMATE.start_Sum2_~instrs#1.offset|)))) .cse8 .cse26 .cse10 .cse27 .cse11)))))) [2022-12-14 12:32:18,942 INFO L902 garLoopResultBuilder]: At program point L566-7(lines 566 568) the Hoare annotation is: true [2022-12-14 12:32:18,942 INFO L902 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: true [2022-12-14 12:32:18,942 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 12:32:18,942 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-12-14 12:32:18,942 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-12-14 12:32:18,942 INFO L899 garLoopResultBuilder]: For program point L567-1(line 567) no Hoare annotation was computed. [2022-12-14 12:32:18,942 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 585) no Hoare annotation was computed. [2022-12-14 12:32:18,942 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 585) no Hoare annotation was computed. [2022-12-14 12:32:18,944 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:32:18,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:32:18,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:32:18 BoogieIcfgContainer [2022-12-14 12:32:18,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:32:18,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:32:18,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:32:18,970 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:32:18,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:31:42" (3/4) ... [2022-12-14 12:32:18,972 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 12:32:18,976 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dummy_abort [2022-12-14 12:32:18,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-14 12:32:18,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 12:32:18,980 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 12:32:18,980 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 12:32:19,005 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:32:19,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:32:19,005 INFO L158 Benchmark]: Toolchain (without parser) took 37612.73ms. Allocated memory was 123.7MB in the beginning and 169.9MB in the end (delta: 46.1MB). Free memory was 89.0MB in the beginning and 74.0MB in the end (delta: 15.1MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2022-12-14 12:32:19,005 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:32:19,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.38ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 71.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 12:32:19,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 123.7MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:32:19,006 INFO L158 Benchmark]: Boogie Preprocessor took 21.27ms. Allocated memory is still 123.7MB. Free memory was 69.3MB in the beginning and 68.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:32:19,006 INFO L158 Benchmark]: RCFGBuilder took 314.90ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 53.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 12:32:19,006 INFO L158 Benchmark]: TraceAbstraction took 36909.82ms. Allocated memory was 123.7MB in the beginning and 169.9MB in the end (delta: 46.1MB). Free memory was 52.9MB in the beginning and 77.1MB in the end (delta: -24.2MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2022-12-14 12:32:19,006 INFO L158 Benchmark]: Witness Printer took 35.18ms. Allocated memory is still 169.9MB. Free memory was 77.1MB in the beginning and 74.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:32:19,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.38ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 71.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 123.7MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.27ms. Allocated memory is still 123.7MB. Free memory was 69.3MB in the beginning and 68.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.90ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 53.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 36909.82ms. Allocated memory was 123.7MB in the beginning and 169.9MB in the end (delta: 46.1MB). Free memory was 52.9MB in the beginning and 77.1MB in the end (delta: -24.2MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. * Witness Printer took 35.18ms. Allocated memory is still 169.9MB. Free memory was 77.1MB in the beginning and 74.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: 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, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 36.8s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 663 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 649 mSDsluCounter, 1453 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1185 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2217 IncrementalHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 268 mSDtfsCounter, 2217 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 965 GetRequests, 557 SyntacticMatches, 14 SemanticMatches, 394 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4948 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=15, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 86 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 21 PreInvPairs, 45 NumberOfFragments, 1326 HoareAnnotationTreeSize, 21 FomulaSimplifications, 601 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 660 NumberOfCodeBlocks, 631 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 863 ConstructedInterpolants, 0 QuantifiedInterpolants, 8167 SizeOfPredicates, 102 NumberOfNonLiveVariables, 1803 ConjunctsInSsa, 243 ConjunctsInUnsatCore, 38 InterpolantComputations, 7 PerfectInterpolantSequences, 531/757 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: 0.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 3, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 2, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 12, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 44, DAG_COMPRESSION_RETAINED_NODES: 23, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: p == 0 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: (((((((((((((((i == 0 && instrs == 0) && unknown-#memory_int-unknown[p][p] <= 1) && unknown-#memory_int-unknown[instrs][instrs] <= 1) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && count <= 0) && 0 <= count) && 0 <= i) && p == 0) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && instrs == 0) && 3 <= i) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && i < 2147483647) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((1 <= i && instrs == 0) && unknown-#memory_int-unknown[p][p] <= 1) && unknown-#memory_int-unknown[instrs][instrs] <= 1) && 0 <= i) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && i == 0) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && 999 <= unknown-#memory_int-unknown[instrs][48 + instrs]) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && count <= 0) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && 0 <= count) && p == 0) && unknown-#memory_int-unknown[instrs][instrs + 70] == 4311810305) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[instrs][18 + instrs] <= count) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && 999 <= unknown-#memory_int-unknown[instrs][48 + instrs]) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && i == 1) && p == 0) && unknown-#memory_int-unknown[instrs][instrs + 70] == 4311810305) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && count <= unknown-#memory_int-unknown[instrs][18 + instrs]) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && 3 <= i) && 0 < 9223372036854775809 + unknown-#memory_int-unknown[instrs][30 * i + 18 + instrs] + count) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && 2 == i) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && count <= unknown-#memory_int-unknown[instrs][18 + instrs] + unknown-#memory_int-unknown[instrs][30 * i + -12 + instrs]) && p == 0) && unknown-#memory_int-unknown[instrs][instrs + 70] == 4311810305) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[p][p] <= 1 && 0 <= i) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && i <= 1) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && i == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((2 <= i && unknown-#memory_int-unknown[p][p + 78] <= 4311810305) && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[p][p + 70] == 4311810305) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && i < unknown-#memory_int-unknown[instrs][instrs]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) RESULT: Ultimate proved your program to be correct! [2022-12-14 12:32:19,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bf8176-5b99-45c5-8661-c1c240dc9585/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