./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/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_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/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_2640049d-24e5-4045-b46b-20a03000170f/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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- 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 15:51:04,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:51:04,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:51:04,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:51:04,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:51:04,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:51:04,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:51:04,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:51:04,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:51:04,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:51:04,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:51:04,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:51:04,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:51:04,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:51:04,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:51:04,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:51:04,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:51:04,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:51:04,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:51:04,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:51:04,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:51:04,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:51:04,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:51:04,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:51:04,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:51:04,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:51:04,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:51:04,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:51:04,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:51:04,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:51:04,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:51:04,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:51:04,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:51:04,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:51:04,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:51:04,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:51:04,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:51:04,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:51:04,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:51:04,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:51:04,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:51:04,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 15:51:04,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:51:04,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:51:04,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:51:04,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:51:04,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:51:04,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:51:04,318 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:51:04,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:51:04,318 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:51:04,318 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:51:04,319 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:51:04,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:51:04,319 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:51:04,319 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:51:04,319 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:51:04,320 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:51:04,320 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:51:04,320 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:51:04,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:51:04,321 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:51:04,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:51:04,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:51:04,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:51:04,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:51:04,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:51:04,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:51:04,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:51:04,322 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:51:04,322 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:51:04,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:51:04,322 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:51:04,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:51:04,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:51:04,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:51:04,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:51:04,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:51:04,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:51:04,325 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_2640049d-24e5-4045-b46b-20a03000170f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2022-12-14 15:51:04,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:51:04,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:51:04,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:51:04,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:51:04,502 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:51:04,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/verifythis/elimination_max.c [2022-12-14 15:51:07,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:51:07,172 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:51:07,172 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/sv-benchmarks/c/verifythis/elimination_max.c [2022-12-14 15:51:07,176 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data/9b7c3850e/280fa87829f244058d6ceae71683d7c0/FLAG19b811520 [2022-12-14 15:51:07,600 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data/9b7c3850e/280fa87829f244058d6ceae71683d7c0 [2022-12-14 15:51:07,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:51:07,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:51:07,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:51:07,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:51:07,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:51:07,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7533bc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07, skipping insertion in model container [2022-12-14 15:51:07,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:51:07,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:51:07,721 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-12-14 15:51:07,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:51:07,740 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:51:07,748 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-12-14 15:51:07,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:51:07,764 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:51:07,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07 WrapperNode [2022-12-14 15:51:07,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:51:07,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:51:07,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:51:07,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:51:07,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,791 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-14 15:51:07,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:51:07,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:51:07,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:51:07,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:51:07,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:51:07,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:51:07,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:51:07,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:51:07,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (1/1) ... [2022-12-14 15:51:07,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:51:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:07,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:51:07,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:51:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:51:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:51:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:51:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:51:07,916 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:51:07,917 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:51:08,051 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:51:08,080 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:51:08,080 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 15:51:08,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:51:08 BoogieIcfgContainer [2022-12-14 15:51:08,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:51:08,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:51:08,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:51:08,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:51:08,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:51:07" (1/3) ... [2022-12-14 15:51:08,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4c7039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:51:08, skipping insertion in model container [2022-12-14 15:51:08,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:07" (2/3) ... [2022-12-14 15:51:08,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4c7039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:51:08, skipping insertion in model container [2022-12-14 15:51:08,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:51:08" (3/3) ... [2022-12-14 15:51:08,090 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2022-12-14 15:51:08,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:51:08,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 15:51:08,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:51:08,164 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;@5adc7dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:51:08,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 15:51:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 26 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:51:08,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:08,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:51:08,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:08,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:08,178 INFO L85 PathProgramCache]: Analyzing trace with hash -724315121, now seen corresponding path program 1 times [2022-12-14 15:51:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:08,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205078804] [2022-12-14 15:51:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:08,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:08,400 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 15:51:08,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:08,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205078804] [2022-12-14 15:51:08,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205078804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:08,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:08,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:08,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246769781] [2022-12-14 15:51:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:08,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:51:08,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:51:08,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:51:08,432 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 26 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 2 states have (on average 2.0) internal successors, (4), 4 states have internal predecessors, (4), 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 15:51:08,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:08,493 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-12-14 15:51:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:51:08,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 2.0) internal successors, (4), 4 states have internal predecessors, (4), 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) Word has length 6 [2022-12-14 15:51:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:08,500 INFO L225 Difference]: With dead ends: 33 [2022-12-14 15:51:08,500 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 15:51:08,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:51:08,505 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 46 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 15:51:08,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 46 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:08,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 15:51:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 15:51:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-12-14 15:51:08,539 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 6 [2022-12-14 15:51:08,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:08,540 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-12-14 15:51:08,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 2.0) internal successors, (4), 4 states have internal predecessors, (4), 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 15:51:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-12-14 15:51:08,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:51:08,541 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:08,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:08,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:51:08,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:08,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:08,542 INFO L85 PathProgramCache]: Analyzing trace with hash -542105126, now seen corresponding path program 1 times [2022-12-14 15:51:08,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:08,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477137764] [2022-12-14 15:51:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:08,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:08,607 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 15:51:08,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:08,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477137764] [2022-12-14 15:51:08,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477137764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:08,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:08,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:08,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014472230] [2022-12-14 15:51:08,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:08,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:51:08,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:08,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:51:08,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:51:08,611 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (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 15:51:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:08,663 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-12-14 15:51:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:51:08,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (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) Word has length 10 [2022-12-14 15:51:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:08,664 INFO L225 Difference]: With dead ends: 51 [2022-12-14 15:51:08,664 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 15:51:08,665 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 15:51:08,665 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:08,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 84 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 15:51:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2022-12-14 15:51:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.5) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-12-14 15:51:08,673 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 10 [2022-12-14 15:51:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:08,673 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-12-14 15:51:08,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (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 15:51:08,674 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-12-14 15:51:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:51:08,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:08,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:08,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:51:08,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash -542104934, now seen corresponding path program 1 times [2022-12-14 15:51:08,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:08,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134390332] [2022-12-14 15:51:08,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:08,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:08,738 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 15:51:08,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:08,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134390332] [2022-12-14 15:51:08,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134390332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:08,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:08,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:51:08,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774856258] [2022-12-14 15:51:08,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:08,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:08,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:08,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:08,741 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 15:51:08,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:08,824 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2022-12-14 15:51:08,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:51:08,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) Word has length 10 [2022-12-14 15:51:08,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:08,825 INFO L225 Difference]: With dead ends: 69 [2022-12-14 15:51:08,825 INFO L226 Difference]: Without dead ends: 68 [2022-12-14 15:51:08,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:51:08,826 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 44 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:08,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 140 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-12-14 15:51:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2022-12-14 15:51:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 34 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-12-14 15:51:08,835 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 10 [2022-12-14 15:51:08,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:08,835 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-12-14 15:51:08,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 15:51:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2022-12-14 15:51:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:51:08,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:08,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:08,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:51:08,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash 374616292, now seen corresponding path program 1 times [2022-12-14 15:51:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:08,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734774608] [2022-12-14 15:51:08,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:08,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:08,884 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 15:51:08,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:08,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734774608] [2022-12-14 15:51:08,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734774608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:08,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:08,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:51:08,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917469172] [2022-12-14 15:51:08,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:08,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:08,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:08,886 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 15:51:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:08,936 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2022-12-14 15:51:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:51:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) Word has length 11 [2022-12-14 15:51:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:08,937 INFO L225 Difference]: With dead ends: 41 [2022-12-14 15:51:08,937 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 15:51:08,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:51:08,939 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:08,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 41 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 15:51:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-12-14 15:51:08,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 33 states have internal predecessors, (42), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:08,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2022-12-14 15:51:08,948 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 11 [2022-12-14 15:51:08,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:08,948 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2022-12-14 15:51:08,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 15:51:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-12-14 15:51:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 15:51:08,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:08,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:08,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:51:08,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1691473941, now seen corresponding path program 1 times [2022-12-14 15:51:08,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:08,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126738692] [2022-12-14 15:51:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:08,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:09,037 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 15:51:09,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:09,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126738692] [2022-12-14 15:51:09,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126738692] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:09,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599261463] [2022-12-14 15:51:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:09,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:09,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:09,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:09,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:51:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:09,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:09,141 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 15:51:09,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:09,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599261463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:09,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:51:09,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 15:51:09,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208961329] [2022-12-14 15:51:09,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:09,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:51:09,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:09,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:51:09,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:51:09,143 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 15:51:09,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:09,201 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2022-12-14 15:51:09,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:51:09,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) Word has length 14 [2022-12-14 15:51:09,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:09,203 INFO L225 Difference]: With dead ends: 51 [2022-12-14 15:51:09,203 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 15:51:09,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 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 15:51:09,204 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:09,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 86 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:09,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 15:51:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 39. [2022-12-14 15:51:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 32 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-12-14 15:51:09,209 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 14 [2022-12-14 15:51:09,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:09,209 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-12-14 15:51:09,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 15:51:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-12-14 15:51:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 15:51:09,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:09,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:09,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:51:09,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:09,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:09,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:09,413 INFO L85 PathProgramCache]: Analyzing trace with hash 896084675, now seen corresponding path program 1 times [2022-12-14 15:51:09,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:09,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383083470] [2022-12-14 15:51:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:09,578 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 15:51:09,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:09,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383083470] [2022-12-14 15:51:09,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383083470] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:09,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493777059] [2022-12-14 15:51:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:09,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:09,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:09,580 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:09,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:51:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:09,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:09,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:09,651 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 15:51:09,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:09,695 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 15:51:09,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493777059] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:09,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [295239193] [2022-12-14 15:51:09,709 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 15:51:09,709 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:51:09,712 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:51:09,716 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:51:09,717 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:51:09,861 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:51:09,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:51:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:51:09,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2022-12-14 15:51:09,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:51:10,200 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 51 for LOIs [2022-12-14 15:51:10,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:51:11,103 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '754#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= |ULTIMATE.start_main_#t~post9#1| |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (<= 1 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (<= 4 |ULTIMATE.start_#Ultimate.meminit_#product#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0) (= |#NULL.offset| 0) (< 2147483646 |ULTIMATE.start_main_#t~post9#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:51:11,103 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:51:11,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:51:11,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 15:51:11,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061563794] [2022-12-14 15:51:11,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:51:11,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 15:51:11,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:11,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 15:51:11,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-12-14 15:51:11,105 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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 15:51:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:11,231 INFO L93 Difference]: Finished difference Result 120 states and 158 transitions. [2022-12-14 15:51:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:51:11,232 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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) Word has length 15 [2022-12-14 15:51:11,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:11,233 INFO L225 Difference]: With dead ends: 120 [2022-12-14 15:51:11,234 INFO L226 Difference]: Without dead ends: 119 [2022-12-14 15:51:11,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-12-14 15:51:11,235 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 73 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:11,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 185 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:51:11,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-14 15:51:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 72. [2022-12-14 15:51:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 65 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 96 transitions. [2022-12-14 15:51:11,242 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 96 transitions. Word has length 15 [2022-12-14 15:51:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:11,243 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 96 transitions. [2022-12-14 15:51:11,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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 15:51:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2022-12-14 15:51:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:51:11,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:11,243 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:11,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:51:11,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 15:51:11,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2080615286, now seen corresponding path program 1 times [2022-12-14 15:51:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:11,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249949809] [2022-12-14 15:51:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:51:11,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:11,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249949809] [2022-12-14 15:51:11,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249949809] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:11,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649687819] [2022-12-14 15:51:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:11,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:11,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:11,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:11,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:51:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:11,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 15:51:11,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:51:11,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:51:11,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649687819] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:11,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1405351419] [2022-12-14 15:51:11,745 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 15:51:11,745 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:51:11,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:51:11,746 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:51:11,746 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:51:11,824 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:51:11,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:51:11,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:51:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:51:11,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2022-12-14 15:51:12,044 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 51 for LOIs [2022-12-14 15:51:12,052 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:51:12,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1405351419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:12,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:51:12,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 6, 6] total 26 [2022-12-14 15:51:12,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969557746] [2022-12-14 15:51:12,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:12,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 15:51:12,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:12,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 15:51:12,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2022-12-14 15:51:12,654 INFO L87 Difference]: Start difference. First operand 72 states and 96 transitions. Second operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 15:51:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:13,819 INFO L93 Difference]: Finished difference Result 97 states and 130 transitions. [2022-12-14 15:51:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 15:51:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) Word has length 18 [2022-12-14 15:51:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:13,820 INFO L225 Difference]: With dead ends: 97 [2022-12-14 15:51:13,820 INFO L226 Difference]: Without dead ends: 96 [2022-12-14 15:51:13,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=236, Invalid=954, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 15:51:13,821 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 85 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:13,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 64 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:51:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-12-14 15:51:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 51. [2022-12-14 15:51:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 44 states have internal predecessors, (55), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-12-14 15:51:13,830 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 18 [2022-12-14 15:51:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:13,830 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-12-14 15:51:13,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 15:51:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-12-14 15:51:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:51:13,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:13,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:13,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 15:51:14,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:51:14,032 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:14,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1683062774, now seen corresponding path program 1 times [2022-12-14 15:51:14,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:14,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876082656] [2022-12-14 15:51:14,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:51:14,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:14,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876082656] [2022-12-14 15:51:14,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876082656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:14,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:14,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:14,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606350278] [2022-12-14 15:51:14,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:14,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:51:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:14,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:51:14,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:51:14,107 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 15:51:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:14,143 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-12-14 15:51:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:51:14,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2022-12-14 15:51:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:14,144 INFO L225 Difference]: With dead ends: 58 [2022-12-14 15:51:14,144 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 15:51:14,145 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 15:51:14,145 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 64 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 15:51:14,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 64 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:14,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 15:51:14,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-12-14 15:51:14,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:51:14,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-12-14 15:51:14,160 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 22 [2022-12-14 15:51:14,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:14,160 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-12-14 15:51:14,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 15:51:14,161 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-12-14 15:51:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 15:51:14,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:14,161 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:51:14,162 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:14,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1316555738, now seen corresponding path program 1 times [2022-12-14 15:51:14,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:14,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97431935] [2022-12-14 15:51:14,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:14,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 15:51:14,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97431935] [2022-12-14 15:51:14,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97431935] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158327094] [2022-12-14 15:51:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:14,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:14,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:14,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:14,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:51:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:14,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 15:51:14,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:51:14,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:14,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158327094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:14,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:51:14,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-12-14 15:51:14,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027579685] [2022-12-14 15:51:14,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:14,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:51:14,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:14,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:51:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:51:14,388 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 15:51:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:14,499 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2022-12-14 15:51:14,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:51:14,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 29 [2022-12-14 15:51:14,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:14,501 INFO L225 Difference]: With dead ends: 97 [2022-12-14 15:51:14,501 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 15:51:14,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:51:14,502 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 37 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:14,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 120 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:51:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 15:51:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 57. [2022-12-14 15:51:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 49 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:51:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2022-12-14 15:51:14,515 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 29 [2022-12-14 15:51:14,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:14,515 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2022-12-14 15:51:14,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 15:51:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2022-12-14 15:51:14,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 15:51:14,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:14,516 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:14,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:51:14,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:14,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:14,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:14,719 INFO L85 PathProgramCache]: Analyzing trace with hash 987938610, now seen corresponding path program 2 times [2022-12-14 15:51:14,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:14,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396016753] [2022-12-14 15:51:14,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:51:14,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396016753] [2022-12-14 15:51:14,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396016753] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265414040] [2022-12-14 15:51:14,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:51:14,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:14,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:14,907 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:14,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:51:14,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 15:51:14,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:51:14,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:14,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 15:51:14,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 15:51:15,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265414040] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:15,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [534164895] [2022-12-14 15:51:15,055 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 15:51:15,055 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:51:15,055 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:51:15,055 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:51:15,055 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:51:15,113 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-14 15:51:15,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2022-12-14 15:51:15,159 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-12-14 15:51:15,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-12-14 15:51:15,209 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:51:15,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:51:15,319 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 51 for LOIs [2022-12-14 15:51:15,326 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:51:16,225 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1971#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= |ULTIMATE.start_main_#t~post9#1| |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc6#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (<= 1 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (<= 4 |ULTIMATE.start_#Ultimate.meminit_#product#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (< 2147483646 |ULTIMATE.start_main_#t~post9#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_#t~malloc6#1.offset| 0) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:51:16,225 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:51:16,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:51:16,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 19 [2022-12-14 15:51:16,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083035418] [2022-12-14 15:51:16,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:51:16,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 15:51:16,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:16,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 15:51:16,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2022-12-14 15:51:16,227 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 20 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 20 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:51:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:16,859 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2022-12-14 15:51:16,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 15:51:16,860 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 20 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2022-12-14 15:51:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:16,860 INFO L225 Difference]: With dead ends: 218 [2022-12-14 15:51:16,861 INFO L226 Difference]: Without dead ends: 217 [2022-12-14 15:51:16,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 57 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=716, Invalid=2590, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 15:51:16,862 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 388 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:16,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 201 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:51:16,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-12-14 15:51:16,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 32. [2022-12-14 15:51:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:51:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-12-14 15:51:16,872 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 27 [2022-12-14 15:51:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:16,872 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-12-14 15:51:16,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 20 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:51:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-12-14 15:51:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 15:51:16,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:16,873 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:16,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:51:17,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:17,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:17,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash 528082443, now seen corresponding path program 1 times [2022-12-14 15:51:17,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:17,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678911534] [2022-12-14 15:51:17,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:17,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:51:17,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:17,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678911534] [2022-12-14 15:51:17,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678911534] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:17,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058667918] [2022-12-14 15:51:17,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:17,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:17,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:17,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:17,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:51:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:17,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:17,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:51:17,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:17,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058667918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:17,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:51:17,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 15:51:17,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810762052] [2022-12-14 15:51:17,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:17,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:51:17,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:17,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:51:17,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:51:17,214 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 15:51:17,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:17,258 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-12-14 15:51:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:51:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 33 [2022-12-14 15:51:17,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:17,259 INFO L225 Difference]: With dead ends: 32 [2022-12-14 15:51:17,259 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 15:51:17,259 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 15:51:17,260 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:17,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 74 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 15:51:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-14 15:51:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:51:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-12-14 15:51:17,273 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 33 [2022-12-14 15:51:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:17,273 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-12-14 15:51:17,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 15:51:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-12-14 15:51:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 15:51:17,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:17,274 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:17,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:51:17,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 15:51:17,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:17,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:17,475 INFO L85 PathProgramCache]: Analyzing trace with hash -809313364, now seen corresponding path program 1 times [2022-12-14 15:51:17,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:17,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746315909] [2022-12-14 15:51:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:17,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:51:17,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:17,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746315909] [2022-12-14 15:51:17,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746315909] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:17,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390834684] [2022-12-14 15:51:17,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:17,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:17,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:17,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:17,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:51:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:17,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:17,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:51:17,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:17,642 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:51:17,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390834684] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:17,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [171007783] [2022-12-14 15:51:17,644 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 15:51:17,645 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:51:17,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:51:17,645 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:51:17,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:51:17,730 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-12-14 15:51:17,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-12-14 15:51:17,747 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-14 15:51:17,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2022-12-14 15:51:17,787 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:51:17,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:51:19,247 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-12-14 15:51:19,249 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 74 for LOIs [2022-12-14 15:51:19,266 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:51:21,012 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2768#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (<= 4 |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc6#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (<= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (< 2147483646 |ULTIMATE.start_main_#t~post14#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_#t~malloc6#1.offset| 0) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0))' at error location [2022-12-14 15:51:21,012 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:51:21,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:51:21,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 15:51:21,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922976307] [2022-12-14 15:51:21,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:51:21,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 15:51:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 15:51:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=800, Unknown=0, NotChecked=0, Total=930 [2022-12-14 15:51:21,014 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-12-14 15:51:21,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:21,101 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-14 15:51:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:51:21,102 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 34 [2022-12-14 15:51:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:21,102 INFO L225 Difference]: With dead ends: 47 [2022-12-14 15:51:21,102 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 15:51:21,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=166, Invalid=1024, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 15:51:21,104 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:21,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 145 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 15:51:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 15:51:21,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 35 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 15:51:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-12-14 15:51:21,118 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 34 [2022-12-14 15:51:21,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:21,118 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-12-14 15:51:21,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-12-14 15:51:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-12-14 15:51:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 15:51:21,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:21,119 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:21,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:51:21,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 15:51:21,320 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:21,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1855326030, now seen corresponding path program 2 times [2022-12-14 15:51:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:21,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177441091] [2022-12-14 15:51:21,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 34 proven. 17 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 15:51:21,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177441091] [2022-12-14 15:51:21,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177441091] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156187589] [2022-12-14 15:51:21,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:51:21,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:21,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:21,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:21,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 15:51:21,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:51:21,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:51:21,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:51:21,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-12-14 15:51:21,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-12-14 15:51:21,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156187589] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:21,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1682325465] [2022-12-14 15:51:21,713 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 15:51:21,713 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:51:21,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:51:21,713 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:51:21,713 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:51:21,780 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-12-14 15:51:21,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-12-14 15:51:21,825 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:51:21,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:51:21,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:51:21,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2022-12-14 15:51:23,713 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-12-14 15:51:23,714 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-12-14 15:51:23,715 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:51:25,850 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3265#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (< 2147483646 |ULTIMATE.start_main_#t~post14#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 15:51:25,850 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:51:25,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:51:25,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 4, 4] total 19 [2022-12-14 15:51:25,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379767117] [2022-12-14 15:51:25,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:51:25,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 15:51:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:25,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 15:51:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1191, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 15:51:25,851 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 9 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) [2022-12-14 15:51:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:26,159 INFO L93 Difference]: Finished difference Result 123 states and 151 transitions. [2022-12-14 15:51:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 15:51:26,160 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 9 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) Word has length 55 [2022-12-14 15:51:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:26,160 INFO L225 Difference]: With dead ends: 123 [2022-12-14 15:51:26,160 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:51:26,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 140 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=260, Invalid=2290, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 15:51:26,161 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 68 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:26,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 149 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:51:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:51:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:51:26,162 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 15:51:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:51:26,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2022-12-14 15:51:26,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:26,162 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:51:26,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 9 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) [2022-12-14 15:51:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:51:26,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 15:51:26,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 15:51:26,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 15:51:26,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:26,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:51:32,857 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 187 DAG size of output: 185 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 15:51:39,409 WARN L233 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 184 DAG size of output: 180 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 15:51:43,154 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2022-12-14 15:51:43,154 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 15:51:43,154 INFO L895 garLoopResultBuilder]: At program point L35-4(lines 25 37) the Hoare annotation is: (let ((.cse22 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse2 (= 18 (select |#length| 2))) (.cse3 (<= 0 |ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse8 (= (select |#valid| 1) 1)) (.cse9 (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0)) (.cse10 (< |ULTIMATE.start_main_~n~0#1| 1073741824)) (.cse11 (= (select |#valid| 0) 0)) (.cse12 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse13 (= (select |#valid| 2) 1)) (.cse14 (= |#NULL.offset| 0)) (.cse15 (= (select .cse22 0) 48)) (.cse16 (<= 0 |ULTIMATE.start_main_~n~0#1|)) (.cse17 (= (select .cse22 1) 0)) (.cse18 (<= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse19 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse20 (< 0 |#StackHeapBarrier|)) (.cse21 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) .cse2 .cse3 (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) .cse4 (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) .cse5 .cse6 .cse7 (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_#Ultimate.meminit_#product#1| (* |ULTIMATE.start_main_~n~0#1| 4)) .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|) (= |ULTIMATE.start_main_#t~malloc6#1.base| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|) .cse7 (= |ULTIMATE.start_main_#t~malloc6#1.base| |ULTIMATE.start_main_~a~0#1.base|) (< |ULTIMATE.start_main_#t~malloc6#1.base| |#StackHeapBarrier|) (= (select |#valid| |ULTIMATE.start_main_#t~malloc6#1.base|) 1) .cse8 .cse9 .cse10 .cse11 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_#t~malloc6#1.base|)) .cse12 (not (= |ULTIMATE.start_main_#t~malloc6#1.base| 3)) .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~x~0#1| 0) .cse16 .cse17 (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|)) .cse18 .cse19 .cse20 .cse21)))) [2022-12-14 15:51:43,154 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 15:51:43,154 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-12-14 15:51:43,154 INFO L895 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= (select |#length| 3) 12) (= 18 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))) [2022-12-14 15:51:43,154 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L895 garLoopResultBuilder]: At program point L45-5(lines 45 47) the Hoare annotation is: (let ((.cse27 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse2 (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (.cse3 (= 18 (select |#length| 2))) (.cse4 (<= 0 |ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse6 (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|))) (.cse7 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (.cse8 (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647)) (.cse9 (= 2 (select |#length| 1))) (.cse10 (= (select |#valid| 3) 1)) (.cse11 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse12 (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588))) (.cse13 (not (<= 1073741824 |ULTIMATE.start_main_~n~0#1|))) (.cse14 (= (select |#valid| 1) 1)) (.cse15 (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse18 (= (select |#valid| 2) 1)) (.cse19 (= |#NULL.offset| 0)) (.cse20 (= (select .cse27 0) 48)) (.cse21 (<= 0 |ULTIMATE.start_main_~n~0#1|)) (.cse22 (= (select .cse27 1) 0)) (.cse23 (<= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse24 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse25 (< 0 |#StackHeapBarrier|)) (.cse26 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26)))) [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 15:51:43,155 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (let ((.cse27 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse2 (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (.cse3 (= 18 (select |#length| 2))) (.cse4 (<= 0 |ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse6 (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|))) (.cse7 (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (.cse8 (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647)) (.cse9 (= 2 (select |#length| 1))) (.cse10 (= (select |#valid| 3) 1)) (.cse11 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse12 (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588))) (.cse13 (not (<= 1073741824 |ULTIMATE.start_main_~n~0#1|))) (.cse14 (= (select |#valid| 1) 1)) (.cse15 (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse18 (= (select |#valid| 2) 1)) (.cse19 (= |#NULL.offset| 0)) (.cse20 (= (select .cse27 0) 48)) (.cse21 (<= 0 |ULTIMATE.start_main_~n~0#1|)) (.cse22 (= (select .cse27 1) 0)) (.cse23 (<= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse24 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse25 (< 0 |#StackHeapBarrier|)) (.cse26 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26)))) [2022-12-14 15:51:43,155 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= 18 (select |#length| 2)) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (not (<= 1073741824 |ULTIMATE.start_main_~n~0#1|)) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= 0 |ULTIMATE.start_main_~n~0#1|) (= (select .cse0 1) 0) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= 18 (select |#length| 2)) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ 2147483647 |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588)) (not (<= 1073741824 |ULTIMATE.start_main_~n~0#1|)) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_#t~malloc6#1.offset| 0) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= 0 |ULTIMATE.start_main_~n~0#1|) (= (select .cse0 1) 0) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2022-12-14 15:51:43,156 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2022-12-14 15:51:43,158 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:43,160 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:51:43,166 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,167 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,167 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,167 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,171 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,171 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,171 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,172 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,174 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 15:51:43,176 INFO L158 Benchmark]: Toolchain (without parser) took 35569.64ms. Allocated memory was 132.1MB in the beginning and 385.9MB in the end (delta: 253.8MB). Free memory was 101.1MB in the beginning and 329.3MB in the end (delta: -228.3MB). Peak memory consumption was 231.4MB. Max. memory is 16.1GB. [2022-12-14 15:51:43,176 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:51:43,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.43ms. Allocated memory is still 132.1MB. Free memory was 100.5MB in the beginning and 90.6MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 15:51:43,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.72ms. Allocated memory is still 132.1MB. Free memory was 90.0MB in the beginning and 88.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:51:43,177 INFO L158 Benchmark]: Boogie Preprocessor took 20.37ms. Allocated memory is still 132.1MB. Free memory was 88.9MB in the beginning and 87.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:51:43,177 INFO L158 Benchmark]: RCFGBuilder took 269.58ms. Allocated memory is still 132.1MB. Free memory was 87.3MB in the beginning and 72.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:51:43,177 INFO L158 Benchmark]: TraceAbstraction took 35092.37ms. Allocated memory was 132.1MB in the beginning and 385.9MB in the end (delta: 253.8MB). Free memory was 72.1MB in the beginning and 329.3MB in the end (delta: -257.3MB). Peak memory consumption was 202.0MB. Max. memory is 16.1GB. [2022-12-14 15:51:43,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.43ms. Allocated memory is still 132.1MB. Free memory was 100.5MB in the beginning and 90.6MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.72ms. Allocated memory is still 132.1MB. Free memory was 90.0MB in the beginning and 88.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.37ms. Allocated memory is still 132.1MB. Free memory was 88.9MB in the beginning and 87.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 269.58ms. Allocated memory is still 132.1MB. Free memory was 87.3MB in the beginning and 72.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 35092.37ms. Allocated memory was 132.1MB in the beginning and 385.9MB in the end (delta: 253.8MB). Free memory was 72.1MB in the beginning and 329.3MB in the end (delta: -257.3MB). Peak memory consumption was 202.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled * 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: 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 3 procedures, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 35.0s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 862 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 829 mSDsluCounter, 1399 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1022 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1422 IncrementalHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 377 mSDtfsCounter, 1422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 399 SyntacticMatches, 19 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2929 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=6, InterpolantAutomatonStates: 129, 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, 13 MinimizatonAttempts, 349 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 32 PreInvPairs, 69 NumberOfFragments, 998 HoareAnnotationTreeSize, 32 FomulaSimplifications, 90326 FormulaSimplificationTreeSizeReduction, 14.6s HoareSimplificationTime, 8 FomulaSimplificationsInter, 1320040 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 509 NumberOfCodeBlocks, 463 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 1584 SizeOfPredicates, 24 NumberOfNonLiveVariables, 897 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 343/504 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: 0.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 15, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 28, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 33, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 56, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 15, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, 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: 149, DAG_COMPRESSION_RETAINED_NODES: 48, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 45]: Loop Invariant [2022-12-14 15:51:43,184 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,184 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,184 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,185 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,185 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,186 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,186 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-12-14 15:51:43,186 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled Derived loop invariant: (((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && unknown-#sizeOfFields-unknown == 4) && unknown-#product-unknown <= 8589934588) && i == 0) && 18 == unknown-#length-unknown[2]) && 0 <= a) && 0 <= x) && 0 <= 2147483647 + unknown-#amountOfFields-unknown) && y <= 2147483646) && unknown-#amountOfFields-unknown <= 2147483647) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 0 <= #Ultimate.meminit_#ptr#1) && 0 <= unknown-#product-unknown + 8589934588) && !(1073741824 <= n)) && \valid[1] == 1) && calloc(n, sizeof(int)) == 0) && \valid[0] == 0) && 0 <= y + 2147483648) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= n) && unknown-#memory_int-unknown[1][1] == 0) && a <= 0) && #Ultimate.meminit_#ptr#1 <= 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && unknown-#sizeOfFields-unknown == 4) && unknown-#product-unknown <= 8589934588) && 18 == unknown-#length-unknown[2]) && 0 <= a) && 0 <= x) && 0 <= 2147483647 + unknown-#amountOfFields-unknown) && 1 <= i) && y <= 2147483646) && unknown-#amountOfFields-unknown <= 2147483647) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 0 <= #Ultimate.meminit_#ptr#1) && 0 <= unknown-#product-unknown + 8589934588) && !(1073741824 <= n)) && \valid[1] == 1) && calloc(n, sizeof(int)) == 0) && \valid[0] == 0) && 0 <= y + 2147483648) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= n) && unknown-#memory_int-unknown[1][1] == 0) && a <= 0) && #Ultimate.meminit_#ptr#1 <= 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 15:51:43,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/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_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/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 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- 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 15:51:44,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:51:44,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:51:44,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:51:44,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:51:44,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:51:44,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:51:44,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:51:44,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:51:44,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:51:44,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:51:44,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:51:44,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:51:44,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:51:44,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:51:44,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:51:44,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:51:44,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:51:44,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:51:44,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:51:44,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:51:44,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:51:44,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:51:44,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:51:44,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:51:44,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:51:44,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:51:44,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:51:44,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:51:44,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:51:44,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:51:44,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:51:44,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:51:44,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:51:44,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:51:44,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:51:44,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:51:44,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:51:44,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:51:44,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:51:44,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:51:44,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-12-14 15:51:44,817 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:51:44,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:51:44,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:51:44,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:51:44,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:51:44,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:51:44,819 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:51:44,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:51:44,819 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:51:44,820 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:51:44,820 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:51:44,820 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:51:44,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:51:44,821 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:51:44,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:51:44,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:51:44,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:51:44,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:51:44,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:51:44,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:51:44,822 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:51:44,822 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:51:44,822 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:51:44,822 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:51:44,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:51:44,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:51:44,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:51:44,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:51:44,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:51:44,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:51:44,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:51:44,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:51:44,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:51:44,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:51:44,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:51:44,824 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:51:44,824 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:51:44,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:51:44,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:51:44,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:51:44,825 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_2640049d-24e5-4045-b46b-20a03000170f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2022-12-14 15:51:45,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:51:45,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:51:45,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:51:45,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:51:45,094 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:51:45,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/verifythis/elimination_max.c [2022-12-14 15:51:47,693 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:51:47,855 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:51:47,855 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/sv-benchmarks/c/verifythis/elimination_max.c [2022-12-14 15:51:47,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data/c21d73622/85647194761c4c3283a9c7db484f03c0/FLAGfc77171b8 [2022-12-14 15:51:48,253 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/data/c21d73622/85647194761c4c3283a9c7db484f03c0 [2022-12-14 15:51:48,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:51:48,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:51:48,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:51:48,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:51:48,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:51:48,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f320084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48, skipping insertion in model container [2022-12-14 15:51:48,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:51:48,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:51:48,393 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-12-14 15:51:48,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:51:48,417 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:51:48,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2022-12-14 15:51:48,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:51:48,441 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:51:48,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48 WrapperNode [2022-12-14 15:51:48,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:51:48,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:51:48,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:51:48,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:51:48,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,467 INFO L138 Inliner]: procedures = 20, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2022-12-14 15:51:48,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:51:48,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:51:48,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:51:48,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:51:48,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,486 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:51:48,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:51:48,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:51:48,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:51:48,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (1/1) ... [2022-12-14 15:51:48,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:51:48,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:48,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:51:48,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:51:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:51:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:51:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:51:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:51:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:51:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 15:51:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:51:48,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:51:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:51:48,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:51:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:51:48,609 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:51:48,611 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:51:48,769 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:51:48,774 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:51:48,774 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 15:51:48,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:51:48 BoogieIcfgContainer [2022-12-14 15:51:48,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:51:48,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:51:48,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:51:48,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:51:48,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:51:48" (1/3) ... [2022-12-14 15:51:48,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e96579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:51:48, skipping insertion in model container [2022-12-14 15:51:48,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:51:48" (2/3) ... [2022-12-14 15:51:48,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e96579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:51:48, skipping insertion in model container [2022-12-14 15:51:48,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:51:48" (3/3) ... [2022-12-14 15:51:48,781 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2022-12-14 15:51:48,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:51:48,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 15:51:48,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:51:48,858 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;@4fc7b3fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:51:48,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 15:51:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:51:48,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:48,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:48,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:48,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2109256822, now seen corresponding path program 1 times [2022-12-14 15:51:48,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:48,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574867371] [2022-12-14 15:51:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:48,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:48,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:48,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:48,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 15:51:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:48,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 15:51:48,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:48,997 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 15:51:48,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:48,998 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:48,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574867371] [2022-12-14 15:51:48,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574867371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:48,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:48,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:51:49,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873508982] [2022-12-14 15:51:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:49,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:51:49,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:51:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:51:49,035 INFO L87 Difference]: Start difference. First operand has 44 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 15:51:49,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:49,057 INFO L93 Difference]: Finished difference Result 81 states and 104 transitions. [2022-12-14 15:51:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:51:49,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 10 [2022-12-14 15:51:49,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:49,065 INFO L225 Difference]: With dead ends: 81 [2022-12-14 15:51:49,065 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 15:51:49,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:51:49,069 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:49,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:49,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 15:51:49,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 15:51:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:49,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-12-14 15:51:49,102 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 10 [2022-12-14 15:51:49,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:49,102 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-12-14 15:51:49,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 15:51:49,103 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-12-14 15:51:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:51:49,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:49,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:49,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:51:49,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:49,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:49,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:49,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2051998520, now seen corresponding path program 1 times [2022-12-14 15:51:49,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:49,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090876269] [2022-12-14 15:51:49,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:49,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:49,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:49,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:49,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 15:51:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:49,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:51:49,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:49,436 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 15:51:49,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:49,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:49,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090876269] [2022-12-14 15:51:49,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090876269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:49,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:49,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:51:49,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233413198] [2022-12-14 15:51:49,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:49,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:49,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:49,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:49,440 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 15:51:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:49,495 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-12-14 15:51:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:51:49,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) Word has length 10 [2022-12-14 15:51:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:49,497 INFO L225 Difference]: With dead ends: 36 [2022-12-14 15:51:49,498 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 15:51:49,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:51:49,499 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:49,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 96 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 15:51:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 15:51:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-12-14 15:51:49,506 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 10 [2022-12-14 15:51:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:49,508 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-12-14 15:51:49,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 15:51:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-12-14 15:51:49,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 15:51:49,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:49,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:49,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 15:51:49,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:49,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:49,714 INFO L85 PathProgramCache]: Analyzing trace with hash 401098451, now seen corresponding path program 1 times [2022-12-14 15:51:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236594231] [2022-12-14 15:51:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:49,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:49,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:49,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:49,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 15:51:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:49,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:51:49,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:49,919 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 15:51:49,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:49,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236594231] [2022-12-14 15:51:49,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236594231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:49,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:49,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:51:49,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865632191] [2022-12-14 15:51:49,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:49,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:49,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:49,922 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 15:51:50,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:50,027 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2022-12-14 15:51:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:51:50,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) Word has length 14 [2022-12-14 15:51:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:50,029 INFO L225 Difference]: With dead ends: 74 [2022-12-14 15:51:50,029 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 15:51:50,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:51:50,030 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 42 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:50,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 171 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:51:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 15:51:50,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2022-12-14 15:51:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 37 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-12-14 15:51:50,037 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 14 [2022-12-14 15:51:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:50,038 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-12-14 15:51:50,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 15:51:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-12-14 15:51:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 15:51:50,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:50,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:50,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 15:51:50,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:50,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash -450855803, now seen corresponding path program 1 times [2022-12-14 15:51:50,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:50,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126138319] [2022-12-14 15:51:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:50,245 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:50,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:50,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:50,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 15:51:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:50,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:51:50,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:50,440 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 15:51:50,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:50,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:50,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126138319] [2022-12-14 15:51:50,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126138319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:50,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:50,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:50,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089935579] [2022-12-14 15:51:50,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:50,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:51:50,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:50,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:51:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:51:50,443 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 15:51:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:50,499 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2022-12-14 15:51:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:51:50,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 15 [2022-12-14 15:51:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:50,500 INFO L225 Difference]: With dead ends: 59 [2022-12-14 15:51:50,500 INFO L226 Difference]: Without dead ends: 58 [2022-12-14 15:51:50,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 15:51:50,501 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 15 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:50,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 104 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-14 15:51:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2022-12-14 15:51:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 39 states have internal predecessors, (47), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-12-14 15:51:50,508 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 15 [2022-12-14 15:51:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:50,508 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-12-14 15:51:50,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 15:51:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-12-14 15:51:50,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 15:51:50,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:50,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:50,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 15:51:50,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:50,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:50,712 INFO L85 PathProgramCache]: Analyzing trace with hash 803979818, now seen corresponding path program 1 times [2022-12-14 15:51:50,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:50,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769217364] [2022-12-14 15:51:50,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:50,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:50,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:50,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 15:51:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:50,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:50,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:50,842 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 15:51:50,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:50,946 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 15:51:50,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:50,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769217364] [2022-12-14 15:51:50,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769217364] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:50,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [181145004] [2022-12-14 15:51:50,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:50,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:51:50,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:51:50,948 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:51:50,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 15:51:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:51,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:51,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:51,035 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 15:51:51,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:51,074 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 15:51:51,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [181145004] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:51,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741838317] [2022-12-14 15:51:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:51,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:51,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:51,076 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:51,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:51:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:51,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:51,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:51,138 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 15:51:51,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:51,178 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 15:51:51,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741838317] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:51,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:51:51,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2022-12-14 15:51:51,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711941796] [2022-12-14 15:51:51,179 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:51:51,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:51:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:51:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:51:51,180 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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 15:51:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:51,417 INFO L93 Difference]: Finished difference Result 120 states and 155 transitions. [2022-12-14 15:51:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:51:51,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) Word has length 19 [2022-12-14 15:51:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:51,419 INFO L225 Difference]: With dead ends: 120 [2022-12-14 15:51:51,419 INFO L226 Difference]: Without dead ends: 119 [2022-12-14 15:51:51,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:51:51,421 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 82 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:51,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 292 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:51:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-14 15:51:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 43. [2022-12-14 15:51:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 36 states have internal predecessors, (43), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-12-14 15:51:51,432 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 19 [2022-12-14 15:51:51,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:51,432 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-12-14 15:51:51,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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 15:51:51,432 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-12-14 15:51:51,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:51:51,433 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:51,433 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:51,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:51:51,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-12-14 15:51:51,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 15:51:52,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:52,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:52,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1492308029, now seen corresponding path program 1 times [2022-12-14 15:51:52,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:52,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028055399] [2022-12-14 15:51:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:52,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:52,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:52,042 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:52,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 15:51:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:52,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 15:51:52,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:51:52,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:51:52,194 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:52,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028055399] [2022-12-14 15:51:52,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028055399] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 15:51:52,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:51:52,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-12-14 15:51:52,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416750700] [2022-12-14 15:51:52,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:52,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:51:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:51:52,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:51:52,196 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 15:51:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:52,250 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2022-12-14 15:51:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:51:52,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) Word has length 22 [2022-12-14 15:51:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:52,251 INFO L225 Difference]: With dead ends: 56 [2022-12-14 15:51:52,251 INFO L226 Difference]: Without dead ends: 55 [2022-12-14 15:51:52,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:51:52,252 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 16 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:52,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 122 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-14 15:51:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 33. [2022-12-14 15:51:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:51:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-12-14 15:51:52,257 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2022-12-14 15:51:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:52,257 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-12-14 15:51:52,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 15:51:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-12-14 15:51:52,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 15:51:52,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:52,258 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:52,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 15:51:52,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:52,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:52,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:52,461 INFO L85 PathProgramCache]: Analyzing trace with hash -956432873, now seen corresponding path program 1 times [2022-12-14 15:51:52,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:52,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111561077] [2022-12-14 15:51:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:52,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:52,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:52,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:52,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 15:51:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:52,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:51:52,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 15:51:52,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:51:52,573 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:52,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111561077] [2022-12-14 15:51:52,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111561077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:52,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:52,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:52,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43540267] [2022-12-14 15:51:52,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:52,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:51:52,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:52,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:51:52,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:51:52,575 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 15:51:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:52,607 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-12-14 15:51:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:51:52,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-12-14 15:51:52,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:52,608 INFO L225 Difference]: With dead ends: 40 [2022-12-14 15:51:52,608 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 15:51:52,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 15:51:52,609 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:52,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 95 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:51:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 15:51:52,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 15:51:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.096774193548387) internal successors, (34), 31 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:51:52,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-12-14 15:51:52,617 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 35 [2022-12-14 15:51:52,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:52,618 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-12-14 15:51:52,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 15:51:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-12-14 15:51:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 15:51:52,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:52,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:52,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 15:51:52,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:52,821 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:51:52,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:52,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1034501262, now seen corresponding path program 1 times [2022-12-14 15:51:52,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:51:52,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248143270] [2022-12-14 15:51:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:52,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:51:52,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:51:52,827 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:51:52,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 15:51:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:52,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:52,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:51:52,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:51:53,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:51:53,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248143270] [2022-12-14 15:51:53,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248143270] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:53,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [524353101] [2022-12-14 15:51:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:53,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:51:53,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:51:53,080 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:51:53,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-12-14 15:51:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:53,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:53,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:51:53,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:51:53,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [524353101] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:53,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223011745] [2022-12-14 15:51:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:53,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:53,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:51:53,233 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:51:53,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 15:51:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:53,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:51:53,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:51:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:51:53,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:51:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 15:51:53,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223011745] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:51:53,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:51:53,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2022-12-14 15:51:53,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145950183] [2022-12-14 15:51:53,360 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:51:53,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:51:53,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:51:53,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:51:53,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:51:53,361 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-14 15:51:53,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:53,537 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-12-14 15:51:53,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:51:53,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 45 [2022-12-14 15:51:53,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:53,538 INFO L225 Difference]: With dead ends: 52 [2022-12-14 15:51:53,538 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:51:53,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:51:53,539 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:53,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 226 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:51:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:51:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:51:53,540 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 15:51:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:51:53,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2022-12-14 15:51:53,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:53,541 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:51:53,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-14 15:51:53,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:51:53,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:51:53,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 15:51:53,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 15:51:53,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2022-12-14 15:51:53,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-14 15:51:53,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-14 15:51:54,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:51:54,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:51:54,774 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2022-12-14 15:51:54,774 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 15:51:54,774 INFO L895 garLoopResultBuilder]: At program point L35-4(lines 25 37) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2022-12-14 15:51:54,774 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-12-14 15:51:54,774 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L902 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: true [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 51) the Hoare annotation is: true [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 15:51:54,775 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L895 garLoopResultBuilder]: At program point L45-5(lines 45 47) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point L45-6(lines 45 47) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32)) (bvsle (bvadd ((_ sign_extend 1) |ULTIMATE.start_main_~i~0#1|) (_ bv1 33)) (_ bv2147483647 33))) [2022-12-14 15:51:54,776 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2022-12-14 15:51:54,776 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~n~0#1| (_ bv0 32)) (bvslt |ULTIMATE.start_main_~n~0#1| (_ bv1073741824 32))) [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2022-12-14 15:51:54,777 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-12-14 15:51:54,778 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-12-14 15:51:54,778 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 12) no Hoare annotation was computed. [2022-12-14 15:51:54,778 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2022-12-14 15:51:54,778 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 12) no Hoare annotation was computed. [2022-12-14 15:51:54,780 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:51:54,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:51:54,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:51:54 BoogieIcfgContainer [2022-12-14 15:51:54,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:51:54,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:51:54,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:51:54,791 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:51:54,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:51:48" (3/4) ... [2022-12-14 15:51:54,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:51:54,797 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 15:51:54,798 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 15:51:54,800 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 15:51:54,800 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 15:51:54,800 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 15:51:54,800 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:51:54,824 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:51:54,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:51:54,825 INFO L158 Benchmark]: Toolchain (without parser) took 6568.22ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.5MB in the beginning and 36.6MB in the end (delta: -9.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-12-14 15:51:54,825 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory was 25.1MB in the beginning and 25.0MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:51:54,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.34ms. Allocated memory is still 58.7MB. Free memory was 27.3MB in the beginning and 31.9MB in the end (delta: -4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 15:51:54,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.36ms. Allocated memory is still 58.7MB. Free memory was 31.9MB in the beginning and 30.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:51:54,825 INFO L158 Benchmark]: Boogie Preprocessor took 19.87ms. Allocated memory is still 58.7MB. Free memory was 30.3MB in the beginning and 28.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:51:54,826 INFO L158 Benchmark]: RCFGBuilder took 286.83ms. Allocated memory is still 58.7MB. Free memory was 28.7MB in the beginning and 28.9MB in the end (delta: -204.0kB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-12-14 15:51:54,826 INFO L158 Benchmark]: TraceAbstraction took 6013.76ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 28.3MB in the beginning and 39.8MB in the end (delta: -11.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-12-14 15:51:54,826 INFO L158 Benchmark]: Witness Printer took 33.30ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 36.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:51:54,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory was 25.1MB in the beginning and 25.0MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.34ms. Allocated memory is still 58.7MB. Free memory was 27.3MB in the beginning and 31.9MB in the end (delta: -4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.36ms. Allocated memory is still 58.7MB. Free memory was 31.9MB in the beginning and 30.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.87ms. Allocated memory is still 58.7MB. Free memory was 30.3MB in the beginning and 28.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.83ms. Allocated memory is still 58.7MB. Free memory was 28.7MB in the beginning and 28.9MB in the end (delta: -204.0kB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6013.76ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 28.3MB in the beginning and 39.8MB in the end (delta: -11.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Witness Printer took 33.30ms. Allocated memory is still 71.3MB. Free memory was 39.8MB in the beginning and 36.6MB in the end (delta: 3.2MB). 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: 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 3 procedures, 44 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 218 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 1150 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 808 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 342 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=4, InterpolantAutomatonStates: 46, 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, 8 MinimizatonAttempts, 139 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 17 PreInvPairs, 30 NumberOfFragments, 45 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7549 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 493 ConstructedInterpolants, 0 QuantifiedInterpolants, 1123 SizeOfPredicates, 21 NumberOfNonLiveVariables, 769 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 112/178 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ~bvsge32(n, 0bv32) && ~bvslt32(n, 1073741824bv32) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ~bvsge32(n, 0bv32) && ~bvslt32(n, 1073741824bv32) RESULT: Ultimate proved your program to be correct! [2022-12-14 15:51:54,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2640049d-24e5-4045-b46b-20a03000170f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE