./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS --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 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 --- 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-8393723 [2022-11-19 07:26:38,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:26:38,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:26:38,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:26:38,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:26:38,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:26:38,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:26:38,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:26:38,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:26:38,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:26:38,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:26:38,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:26:38,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:26:38,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:26:38,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:26:38,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:26:38,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:26:38,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:26:38,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:26:38,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:26:38,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:26:38,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:26:38,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:26:38,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:26:38,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:26:38,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:26:38,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:26:38,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:26:38,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:26:38,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:26:38,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:26:38,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:26:38,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:26:38,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:26:38,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:26:38,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:26:38,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:26:38,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:26:38,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:26:38,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:26:38,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:26:38,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:26:38,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:26:38,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:26:38,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:26:38,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:26:38,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:26:38,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:26:38,538 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:26:38,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:26:38,539 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:26:38,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:26:38,540 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:26:38,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:26:38,540 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:26:38,540 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:26:38,541 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:26:38,541 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:26:38,541 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:26:38,541 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:26:38,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:26:38,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:26:38,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:26:38,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:26:38,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:26:38,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:26:38,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:26:38,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:26:38,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:26:38,544 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:26:38,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:26:38,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:26:38,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:26:38,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:26:38,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:26:38,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:26:38,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:26:38,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:26:38,547 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:26:38,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:26:38,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:26:38,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:26:38,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:26:38,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:26:38,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:26:38,548 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_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 [2022-11-19 07:26:38,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:26:38,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:26:38,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:26:38,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:26:38,885 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:26:38,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2022-11-19 07:26:38,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/data/0224f22a2/3583d749f301403f97c8fd6f2392f730/FLAG5544ea08e [2022-11-19 07:26:39,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:26:39,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2022-11-19 07:26:39,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/data/0224f22a2/3583d749f301403f97c8fd6f2392f730/FLAG5544ea08e [2022-11-19 07:26:39,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/data/0224f22a2/3583d749f301403f97c8fd6f2392f730 [2022-11-19 07:26:39,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:26:39,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:26:39,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:26:39,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:26:39,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:26:39,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:26:39" (1/1) ... [2022-11-19 07:26:39,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd9b91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:39, skipping insertion in model container [2022-11-19 07:26:39,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:26:39" (1/1) ... [2022-11-19 07:26:39,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:26:40,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:26:40,204 WARN L234 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_684cb2ab-9308-40a4-b81a-27f00bbaef10/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2022-11-19 07:26:40,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:26:40,234 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:26:40,247 WARN L234 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_684cb2ab-9308-40a4-b81a-27f00bbaef10/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2022-11-19 07:26:40,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:26:40,264 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:26:40,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40 WrapperNode [2022-11-19 07:26:40,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:26:40,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:26:40,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:26:40,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:26:40,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,305 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-11-19 07:26:40,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:26:40,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:26:40,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:26:40,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:26:40,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:26:40,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:26:40,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:26:40,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:26:40,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:26:40,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:40,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:26:40,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:26:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:26:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:26:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:26:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:26:40,492 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:26:40,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:26:40,715 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:26:40,740 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:26:40,740 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:26:40,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:26:40 BoogieIcfgContainer [2022-11-19 07:26:40,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:26:40,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:26:40,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:26:40,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:26:40,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:26:39" (1/3) ... [2022-11-19 07:26:40,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e996a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:26:40, skipping insertion in model container [2022-11-19 07:26:40,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (2/3) ... [2022-11-19 07:26:40,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e996a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:26:40, skipping insertion in model container [2022-11-19 07:26:40,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:26:40" (3/3) ... [2022-11-19 07:26:40,768 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2022-11-19 07:26:40,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:26:40,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 07:26:40,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:26:40,921 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;@3697a909, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:26:40,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 07:26:40,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:26:40,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:40,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:26:40,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:40,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:40,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2241565, now seen corresponding path program 1 times [2022-11-19 07:26:40,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:40,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892714554] [2022-11-19 07:26:40,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:40,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:41,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:41,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892714554] [2022-11-19 07:26:41,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892714554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:41,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:41,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:26:41,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959037777] [2022-11-19 07:26:41,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:41,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:26:41,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:41,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:26:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,346 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:41,471 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-11-19 07:26:41,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:26:41,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:26:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:41,487 INFO L225 Difference]: With dead ends: 22 [2022-11-19 07:26:41,487 INFO L226 Difference]: Without dead ends: 15 [2022-11-19 07:26:41,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,497 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:41,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:26:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-19 07:26:41,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-19 07:26:41,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-19 07:26:41,546 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2022-11-19 07:26:41,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:41,546 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-19 07:26:41,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-19 07:26:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:26:41,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:41,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:26:41,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:26:41,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash 69488565, now seen corresponding path program 1 times [2022-11-19 07:26:41,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:41,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081861433] [2022-11-19 07:26:41,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:41,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:41,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:41,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081861433] [2022-11-19 07:26:41,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081861433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:41,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:41,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:26:41,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178877870] [2022-11-19 07:26:41,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:41,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:26:41,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:41,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:26:41,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,653 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:41,698 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 07:26:41,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:26:41,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:26:41,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:41,700 INFO L225 Difference]: With dead ends: 16 [2022-11-19 07:26:41,701 INFO L226 Difference]: Without dead ends: 15 [2022-11-19 07:26:41,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,708 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:41,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:26:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-19 07:26:41,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-19 07:26:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-19 07:26:41,723 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2022-11-19 07:26:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:41,724 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-19 07:26:41,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,726 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-19 07:26:41,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:26:41,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:41,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:26:41,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:26:41,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:41,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:41,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2140821729, now seen corresponding path program 1 times [2022-11-19 07:26:41,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:41,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496453849] [2022-11-19 07:26:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:41,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:41,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:41,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496453849] [2022-11-19 07:26:41,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496453849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:41,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:41,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:26:41,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868268588] [2022-11-19 07:26:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:41,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:26:41,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:41,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:26:41,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,811 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:41,859 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-19 07:26:41,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:26:41,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 07:26:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:41,861 INFO L225 Difference]: With dead ends: 18 [2022-11-19 07:26:41,862 INFO L226 Difference]: Without dead ends: 17 [2022-11-19 07:26:41,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,866 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:41,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:26:41,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-19 07:26:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-19 07:26:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-19 07:26:41,880 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2022-11-19 07:26:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:41,881 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-19 07:26:41,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-19 07:26:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:26:41,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:41,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:41,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:26:41,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:41,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1940964105, now seen corresponding path program 1 times [2022-11-19 07:26:41,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:41,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726297589] [2022-11-19 07:26:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:41,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:41,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:41,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726297589] [2022-11-19 07:26:41,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726297589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:41,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:41,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:26:41,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898803543] [2022-11-19 07:26:41,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:41,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:26:41,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:26:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:41,972 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:42,006 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 07:26:42,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:26:42,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 07:26:42,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:42,010 INFO L225 Difference]: With dead ends: 16 [2022-11-19 07:26:42,010 INFO L226 Difference]: Without dead ends: 15 [2022-11-19 07:26:42,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:42,019 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:42,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:26:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-19 07:26:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-19 07:26:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-19 07:26:42,031 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2022-11-19 07:26:42,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:42,031 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-19 07:26:42,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-19 07:26:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:26:42,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:42,033 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:42,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:26:42,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:42,035 INFO L85 PathProgramCache]: Analyzing trace with hash -116887834, now seen corresponding path program 1 times [2022-11-19 07:26:42,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:42,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237201149] [2022-11-19 07:26:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:42,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:42,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:42,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237201149] [2022-11-19 07:26:42,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237201149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:26:42,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030085448] [2022-11-19 07:26:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:42,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:42,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:42,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:26:42,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:26:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:42,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:26:42,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:42,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:42,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030085448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:26:42,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2012069962] [2022-11-19 07:26:42,555 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 07:26:42,555 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:26:42,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:26:42,571 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:26:42,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:26:42,832 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:26:43,349 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '245#(and (not (<= (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:26:43,349 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:26:43,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:26:43,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-19 07:26:43,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394432900] [2022-11-19 07:26:43,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:26:43,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:26:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:43,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:26:43,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-11-19 07:26:43,352 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:43,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:43,582 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-11-19 07:26:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 07:26:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:26:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:43,587 INFO L225 Difference]: With dead ends: 30 [2022-11-19 07:26:43,587 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:26:43,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:26:43,591 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:43,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 8 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:26:43,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:26:43,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-11-19 07:26:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-19 07:26:43,600 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 10 [2022-11-19 07:26:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:43,600 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-19 07:26:43,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-19 07:26:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:26:43,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:43,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:43,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:26:43,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:43,808 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash 671444492, now seen corresponding path program 1 times [2022-11-19 07:26:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:43,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627902262] [2022-11-19 07:26:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:43,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:43,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:43,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627902262] [2022-11-19 07:26:43,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627902262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:43,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:43,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:26:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189107311] [2022-11-19 07:26:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:43,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:26:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:26:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:26:43,900 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:43,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:43,951 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-19 07:26:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:26:43,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:26:43,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:43,954 INFO L225 Difference]: With dead ends: 25 [2022-11-19 07:26:43,954 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 07:26:43,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:26:43,956 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:43,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:26:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 07:26:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-19 07:26:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-19 07:26:43,967 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 11 [2022-11-19 07:26:43,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:43,967 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-19 07:26:43,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-19 07:26:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:26:43,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:43,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:43,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:26:43,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:43,970 INFO L85 PathProgramCache]: Analyzing trace with hash -660057176, now seen corresponding path program 1 times [2022-11-19 07:26:43,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:43,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391459711] [2022-11-19 07:26:43,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:43,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:26:44,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:44,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391459711] [2022-11-19 07:26:44,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391459711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:26:44,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:26:44,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:26:44,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029398640] [2022-11-19 07:26:44,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:26:44,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:26:44,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:44,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:26:44,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:44,031 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:44,051 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-19 07:26:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:26:44,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 07:26:44,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:44,053 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:26:44,053 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:26:44,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:26:44,054 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:44,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:26:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:26:44,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-19 07:26:44,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-11-19 07:26:44,059 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2022-11-19 07:26:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:44,059 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-11-19 07:26:44,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-11-19 07:26:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:26:44,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:44,061 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1] [2022-11-19 07:26:44,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:26:44,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:44,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:44,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1545665480, now seen corresponding path program 2 times [2022-11-19 07:26:44,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:44,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788958031] [2022-11-19 07:26:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:44,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:44,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:44,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788958031] [2022-11-19 07:26:44,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788958031] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:26:44,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782594879] [2022-11-19 07:26:44,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:26:44,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:44,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:44,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:26:44,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:26:44,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 07:26:44,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:26:44,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:26:44,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:44,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:44,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782594879] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:26:44,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [292889879] [2022-11-19 07:26:44,739 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 07:26:44,739 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:26:44,740 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:26:44,740 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:26:44,740 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:26:44,904 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:26:45,407 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '596#(and (not (<= (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:26:45,407 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:26:45,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:26:45,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-19 07:26:45,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867992213] [2022-11-19 07:26:45,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:26:45,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 07:26:45,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:45,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 07:26:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2022-11-19 07:26:45,410 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:45,959 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-11-19 07:26:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 07:26:45,959 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 07:26:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:45,960 INFO L225 Difference]: With dead ends: 49 [2022-11-19 07:26:45,960 INFO L226 Difference]: Without dead ends: 48 [2022-11-19 07:26:45,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=367, Invalid=1273, Unknown=0, NotChecked=0, Total=1640 [2022-11-19 07:26:45,962 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:45,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:26:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-19 07:26:45,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2022-11-19 07:26:45,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2022-11-19 07:26:45,970 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 22 [2022-11-19 07:26:45,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:45,970 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2022-11-19 07:26:45,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 18 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:45,971 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2022-11-19 07:26:45,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 07:26:45,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:45,972 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 1, 1, 1] [2022-11-19 07:26:45,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:26:46,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:46,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash -476680740, now seen corresponding path program 3 times [2022-11-19 07:26:46,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:46,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934391072] [2022-11-19 07:26:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:46,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:46,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:46,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934391072] [2022-11-19 07:26:46,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934391072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:26:46,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698244251] [2022-11-19 07:26:46,588 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:26:46,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:46,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:46,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:26:46,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:26:46,663 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:26:46,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:26:46,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 07:26:46,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:47,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:47,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698244251] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:26:47,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1989625071] [2022-11-19 07:26:47,786 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 07:26:47,786 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:26:47,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:26:47,787 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:26:47,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:26:47,955 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:26:48,601 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1058#(and (not (<= (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:26:48,602 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:26:48,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:26:48,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2022-11-19 07:26:48,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120510742] [2022-11-19 07:26:48,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:26:48,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-19 07:26:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-19 07:26:48,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2062, Unknown=0, NotChecked=0, Total=2450 [2022-11-19 07:26:48,605 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 42 states, 41 states have (on average 2.951219512195122) internal successors, (121), 42 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:50,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:26:50,724 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2022-11-19 07:26:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-19 07:26:50,724 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.951219512195122) internal successors, (121), 42 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-19 07:26:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:26:50,725 INFO L225 Difference]: With dead ends: 96 [2022-11-19 07:26:50,725 INFO L226 Difference]: Without dead ends: 95 [2022-11-19 07:26:50,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2921 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2115, Invalid=6627, Unknown=0, NotChecked=0, Total=8742 [2022-11-19 07:26:50,730 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 262 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:26:50,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 2 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:26:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-19 07:26:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-11-19 07:26:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.0106382978723405) internal successors, (95), 94 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2022-11-19 07:26:50,742 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 46 [2022-11-19 07:26:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:26:50,742 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2022-11-19 07:26:50,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.951219512195122) internal successors, (121), 42 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:26:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2022-11-19 07:26:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-19 07:26:50,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:50,745 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 1, 1, 1] [2022-11-19 07:26:50,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:26:50,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:50,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:26:50,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash 651967780, now seen corresponding path program 4 times [2022-11-19 07:26:50,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:50,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140223336] [2022-11-19 07:26:50,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:50,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:52,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:52,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140223336] [2022-11-19 07:26:52,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140223336] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:26:52,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93070406] [2022-11-19 07:26:52,090 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:26:52,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:52,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:52,092 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:26:52,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:26:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:52,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-19 07:26:52,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:54,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:56,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93070406] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:26:56,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1768266512] [2022-11-19 07:26:56,210 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 07:26:56,211 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:26:56,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:26:56,211 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:26:56,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:26:56,314 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:26:57,121 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2029#(and (not (<= (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:26:57,122 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:26:57,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:26:57,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 93 [2022-11-19 07:26:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564031606] [2022-11-19 07:26:57,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:26:57,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-19 07:26:57,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:26:57,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-19 07:26:57,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1524, Invalid=8778, Unknown=0, NotChecked=0, Total=10302 [2022-11-19 07:26:57,128 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand has 94 states, 93 states have (on average 2.978494623655914) internal successors, (277), 94 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:27:05,132 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2022-11-19 07:27:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-19 07:27:05,132 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.978494623655914) internal successors, (277), 94 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-11-19 07:27:05,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:27:05,134 INFO L225 Difference]: With dead ends: 198 [2022-11-19 07:27:05,134 INFO L226 Difference]: Without dead ends: 197 [2022-11-19 07:27:05,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13986 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=9783, Invalid=30417, Unknown=0, NotChecked=0, Total=40200 [2022-11-19 07:27:05,143 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1177 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:27:05,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 2 Invalid, 3024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 07:27:05,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-19 07:27:05,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2022-11-19 07:27:05,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.0051020408163265) internal successors, (197), 196 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2022-11-19 07:27:05,182 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 94 [2022-11-19 07:27:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:27:05,182 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 197 transitions. [2022-11-19 07:27:05,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.978494623655914) internal successors, (277), 94 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:27:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 197 transitions. [2022-11-19 07:27:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-19 07:27:05,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:27:05,195 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 1, 1, 1] [2022-11-19 07:27:05,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 07:27:05,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 07:27:05,400 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:27:05,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:27:05,401 INFO L85 PathProgramCache]: Analyzing trace with hash -853952195, now seen corresponding path program 5 times [2022-11-19 07:27:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:27:05,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116959400] [2022-11-19 07:27:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:27:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:27:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:27:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3040 backedges. 0 proven. 3040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:09,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:27:09,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116959400] [2022-11-19 07:27:09,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116959400] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:27:09,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558896238] [2022-11-19 07:27:09,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:27:09,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:27:09,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:09,259 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:27:09,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:27:09,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2022-11-19 07:27:09,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:27:09,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-19 07:27:09,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:27:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3040 backedges. 0 proven. 3040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:13,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:27:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3040 backedges. 0 proven. 3040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:27:20,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558896238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:27:20,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1066474293] [2022-11-19 07:27:20,987 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 07:27:20,988 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:27:20,988 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:27:20,988 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:27:20,988 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:27:21,085 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:27:22,610 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4062#(and (not (<= (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:27:22,611 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:27:22,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:27:22,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2022-11-19 07:27:22,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699913874] [2022-11-19 07:27:22,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:27:22,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-11-19 07:27:22,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:27:22,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-11-19 07:27:22,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7591, Invalid=33821, Unknown=0, NotChecked=0, Total=41412 [2022-11-19 07:27:22,621 INFO L87 Difference]: Start difference. First operand 197 states and 197 transitions. Second operand has 196 states, 195 states have (on average 3.005128205128205) internal successors, (586), 196 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:26,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:26,100 INFO L93 Difference]: Finished difference Result 397 states and 429 transitions. [2022-11-19 07:28:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-11-19 07:28:26,104 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 3.005128205128205) internal successors, (586), 196 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-11-19 07:28:26,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:26,106 INFO L225 Difference]: With dead ends: 397 [2022-11-19 07:28:26,107 INFO L226 Difference]: Without dead ends: 396 [2022-11-19 07:28:26,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 408 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64706 ImplicationChecksByTransitivity, 69.5s TimeCoverageRelationStatistics Valid=41697, Invalid=125993, Unknown=0, NotChecked=0, Total=167690 [2022-11-19 07:28:26,126 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4266 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11610 mSolverCounterSat, 1922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1922 IncrementalHoareTripleChecker+Valid, 11610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:26,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 2 Invalid, 13532 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1922 Valid, 11610 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-19 07:28:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-19 07:28:26,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2022-11-19 07:28:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.00253807106599) internal successors, (395), 394 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:26,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 395 transitions. [2022-11-19 07:28:26,172 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 395 transitions. Word has length 196 [2022-11-19 07:28:26,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:26,173 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 395 transitions. [2022-11-19 07:28:26,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 3.005128205128205) internal successors, (586), 196 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 395 transitions. [2022-11-19 07:28:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-11-19 07:28:26,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:26,182 INFO L195 NwaCegarLoop]: trace histogram [66, 65, 65, 65, 65, 65, 1, 1, 1] [2022-11-19 07:28:26,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:26,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-19 07:28:26,389 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:28:26,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:26,390 INFO L85 PathProgramCache]: Analyzing trace with hash 732678438, now seen corresponding path program 6 times [2022-11-19 07:28:26,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:26,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547646963] [2022-11-19 07:28:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:26,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:39,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12610 backedges. 0 proven. 12610 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:39,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:39,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547646963] [2022-11-19 07:28:39,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547646963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:28:39,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749115738] [2022-11-19 07:28:39,143 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:28:39,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:28:39,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:39,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:28:39,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:28:39,304 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:28:39,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:28:39,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 133 conjunts are in the unsatisfiable core [2022-11-19 07:28:39,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:28:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 12610 backedges. 0 proven. 12610 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:40,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:28:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12610 backedges. 0 proven. 12610 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:59,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749115738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:28:59,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [219313120] [2022-11-19 07:28:59,868 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 07:28:59,868 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:28:59,868 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:28:59,869 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:28:59,869 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:28:59,980 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:29:02,553 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8032#(and (not (<= (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 07:29:02,553 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:29:02,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:29:02,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 132, 132] total 267 [2022-11-19 07:29:02,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105675079] [2022-11-19 07:29:02,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:29:02,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 268 states [2022-11-19 07:29:02,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:02,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants. [2022-11-19 07:29:02,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17741, Invalid=58159, Unknown=0, NotChecked=0, Total=75900 [2022-11-19 07:29:02,567 INFO L87 Difference]: Start difference. First operand 395 states and 395 transitions. Second operand has 268 states, 267 states have (on average 2.99250936329588) internal successors, (799), 268 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:16,511 INFO L93 Difference]: Finished difference Result 792 states and 857 transitions. [2022-11-19 07:34:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 453 states. [2022-11-19 07:34:16,513 INFO L78 Accepts]: Start accepts. Automaton has has 268 states, 267 states have (on average 2.99250936329588) internal successors, (799), 268 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2022-11-19 07:34:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:16,515 INFO L225 Difference]: With dead ends: 792 [2022-11-19 07:34:16,515 INFO L226 Difference]: Without dead ends: 791 [2022-11-19 07:34:16,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1760 GetRequests, 1038 SyntacticMatches, 0 SemanticMatches, 722 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198389 ImplicationChecksByTransitivity, 315.2s TimeCoverageRelationStatistics Valid=125243, Invalid=398209, Unknown=0, NotChecked=0, Total=523452 [2022-11-19 07:34:16,544 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14417 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41208 mSolverCounterSat, 7177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14417 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 48385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7177 IncrementalHoareTripleChecker+Valid, 41208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:16,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14417 Valid, 2 Invalid, 48385 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7177 Valid, 41208 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time] [2022-11-19 07:34:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-19 07:34:16,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2022-11-19 07:34:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 790 states have (on average 1.0012658227848101) internal successors, (791), 790 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:16,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 791 transitions. [2022-11-19 07:34:16,695 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 791 transitions. Word has length 394 [2022-11-19 07:34:16,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:16,696 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 791 transitions. [2022-11-19 07:34:16,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 268 states, 267 states have (on average 2.99250936329588) internal successors, (799), 268 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 791 transitions. [2022-11-19 07:34:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2022-11-19 07:34:16,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:16,722 INFO L195 NwaCegarLoop]: trace histogram [132, 131, 131, 131, 131, 131, 1, 1, 1] [2022-11-19 07:34:16,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:34:16,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 07:34:16,929 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:34:16,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:16,929 INFO L85 PathProgramCache]: Analyzing trace with hash 881785016, now seen corresponding path program 7 times [2022-11-19 07:34:16,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:16,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041638834] [2022-11-19 07:34:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:16,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 51352 backedges. 48376 proven. 0 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2022-11-19 07:34:29,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:34:29,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041638834] [2022-11-19 07:34:29,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041638834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:29,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:29,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-11-19 07:34:29,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129373458] [2022-11-19 07:34:29,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:29,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-19 07:34:29,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:34:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-19 07:34:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-11-19 07:34:29,092 INFO L87 Difference]: Start difference. First operand 791 states and 791 transitions. Second operand has 102 states, 102 states have (on average 5.931372549019608) internal successors, (605), 102 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:31,086 INFO L93 Difference]: Finished difference Result 791 states and 791 transitions. [2022-11-19 07:34:31,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-19 07:34:31,087 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 5.931372549019608) internal successors, (605), 102 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 790 [2022-11-19 07:34:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:31,089 INFO L225 Difference]: With dead ends: 791 [2022-11-19 07:34:31,089 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:34:31,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-11-19 07:34:31,092 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:31,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:34:31,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:34:31,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:34:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:31,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:34:31,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 790 [2022-11-19 07:34:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:31,094 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:34:31,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.931372549019608) internal successors, (605), 102 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:34:31,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:34:31,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-19 07:34:31,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-19 07:34:31,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-19 07:34:31,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-19 07:34:31,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:34:31,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:34:40,391 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 1030 DAG size of output: 473 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-19 07:34:40,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-19 07:34:40,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:34:40,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-19 07:34:40,399 INFO L902 garLoopResultBuilder]: At program point L29(lines 19 30) the Hoare annotation is: true [2022-11-19 07:34:40,399 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-19 07:34:40,399 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-11-19 07:34:40,401 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 27) the Hoare annotation is: (let ((.cse9 (* 2 |ULTIMATE.start_main_~i~0#1|))) (let ((.cse7 (+ |ULTIMATE.start_main_~c~0#1| .cse9))) (let ((.cse2 (* |ULTIMATE.start_main_~i~0#1| 10)) (.cse6 (* 14 |ULTIMATE.start_main_~i~0#1|)) (.cse10 (* 9 |ULTIMATE.start_main_~i~0#1|)) (.cse11 (* |ULTIMATE.start_main_~i~0#1| 8)) (.cse4 (+ |ULTIMATE.start_main_~c~0#1| (* 3 |ULTIMATE.start_main_~i~0#1|))) (.cse8 (* 19 |ULTIMATE.start_main_~i~0#1|)) (.cse5 (* 6 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (.cse0 (< .cse7 2147483647)) (.cse1 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1596) (* 56 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 113) (<= (+ |ULTIMATE.start_main_~c~0#1| 136) (* 16 |ULTIMATE.start_main_~i~0#1|))) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 210) (* |ULTIMATE.start_main_~i~0#1| 20)) .cse1 (< (+ .cse2 |ULTIMATE.start_main_~c~0#1|) 2147483593)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1378) (* 52 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1128) (* 47 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 703) (* |ULTIMATE.start_main_~i~0#1| 37))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 666) (* |ULTIMATE.start_main_~i~0#1| 36))) (and .cse0 .cse1 (<= (+ 861 |ULTIMATE.start_main_~c~0#1|) (* 41 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 1953 |ULTIMATE.start_main_~c~0#1|) (* 62 |ULTIMATE.start_main_~i~0#1|))) (and (< |ULTIMATE.start_main_~c~0#1| 2147479228) (<= 66 |ULTIMATE.start_main_~i~0#1|) .cse1 (< .cse3 2147483647)) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 1) (<= (+ |ULTIMATE.start_main_~c~0#1| 1) |ULTIMATE.start_main_~i~0#1|)) (and .cse1 (<= (+ 66 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 11)) (<= |ULTIMATE.start_main_~i~0#1| 110)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 528) (* 32 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (< .cse4 2147483642) (<= (+ |ULTIMATE.start_main_~c~0#1| 55) .cse2)) (and .cse1 (<= .cse3 0) (<= |ULTIMATE.start_main_~c~0#1| .cse5)) (and (<= (+ 2080 |ULTIMATE.start_main_~c~0#1|) (* 64 |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 100) .cse1) (and (<= (+ 351 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 26)) .cse1 (< (+ .cse5 |ULTIMATE.start_main_~c~0#1|) 2147483633)) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 780) (* |ULTIMATE.start_main_~i~0#1| 39)) .cse1) (and .cse1 (< .cse3 2147480876) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and .cse1 (<= (+ 153 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 17)) (< (+ |ULTIMATE.start_main_~c~0#1| .cse6) 2147483557)) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 1770) (* 59 |ULTIMATE.start_main_~i~0#1|)) .cse1) (and .cse0 .cse1 (<= (+ 465 |ULTIMATE.start_main_~c~0#1|) (* 30 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1081) (* 46 |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 111) .cse1 (<= (+ 91 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 13))) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 1891) (* |ULTIMATE.start_main_~i~0#1| 61)) .cse1) (and .cse0 .cse1 (<= (+ 903 |ULTIMATE.start_main_~c~0#1|) (* 42 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 990 |ULTIMATE.start_main_~c~0#1|) (* 44 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= (+ 40 |ULTIMATE.start_main_~c~0#1|) .cse2) (<= |ULTIMATE.start_main_~i~0#1| 5)) (and (<= (+ 595 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 34)) .cse1 (< .cse7 2147481323)) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 1711) (* |ULTIMATE.start_main_~i~0#1| 58)) .cse0 .cse1) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 1431) (* 53 |ULTIMATE.start_main_~i~0#1|)) .cse0 .cse1) (and .cse1 (< (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~i~0#1| 12)) 2147483570) (<= (+ 190 |ULTIMATE.start_main_~c~0#1|) .cse8)) (and .cse0 (<= (+ 3 |ULTIMATE.start_main_~c~0#1|) .cse9) .cse1) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 112) (<= (+ |ULTIMATE.start_main_~c~0#1| 105) .cse6)) (and (<= (+ 253 |ULTIMATE.start_main_~c~0#1|) (* 22 |ULTIMATE.start_main_~i~0#1|)) .cse1 (< (+ |ULTIMATE.start_main_~c~0#1| .cse10) 2147483612)) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 36) .cse11) (<= |ULTIMATE.start_main_~i~0#1| 106)) (and .cse0 .cse1 (<= (+ 1225 |ULTIMATE.start_main_~c~0#1|) (* 49 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 4) (<= (+ 30 |ULTIMATE.start_main_~c~0#1|) .cse10)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1540) (* |ULTIMATE.start_main_~i~0#1| 55))) (and (<= (+ 156 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 18)) .cse1 (<= 24 |ULTIMATE.start_main_~i~0#1|) (< (+ .cse11 |ULTIMATE.start_main_~c~0#1|) 2147483620)) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 406) (* |ULTIMATE.start_main_~i~0#1| 28)) (< .cse4 2147483645)) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 175) .cse8) (<= 25 |ULTIMATE.start_main_~i~0#1|) (< (+ |ULTIMATE.start_main_~c~0#1| (* 7 |ULTIMATE.start_main_~i~0#1|)) 2147483627)) (and .cse0 .cse1 (<= (+ 21 |ULTIMATE.start_main_~c~0#1|) .cse5)) (and (or (< 87 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482426)) (or (< .cse3 2147481226) (< 72 |ULTIMATE.start_main_~i~0#1|)) (<= .cse3 2147483647) (or (< 78 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481679)) (or (< 88 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482514)) (or (< .cse3 2147482784) (< 91 |ULTIMATE.start_main_~i~0#1|)) (or (< 73 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481299)) (or (< .cse3 2147481838) (< 80 |ULTIMATE.start_main_~i~0#1|)) (or (< 76 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481524)) (or (< 69 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481013)) (or (< 93 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482969)) (or (< 82 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482001)) (or (< 89 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482603)) (or (< .cse3 2147481083) (< 70 |ULTIMATE.start_main_~i~0#1|)) .cse1 (or (< 74 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481373)) (or (< 81 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481919)) (or (< .cse3 2147482168) (< 84 |ULTIMATE.start_main_~i~0#1|)) (or (< 71 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481154)) (or (not (< |ULTIMATE.start_main_~i~0#1| 100)) .cse0) (or (< .cse3 2147482084) (< 83 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147483158) (< 95 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147480944) (< 68 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147482876) (< 92 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147481601) (< 77 |ULTIMATE.start_main_~i~0#1|)) (or (< 86 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482339)) (or (< 98 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147483449)) (or (< .cse3 2147481448) (< 75 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147483063) (< 94 |ULTIMATE.start_main_~i~0#1|)) (<= 68 |ULTIMATE.start_main_~i~0#1|) (or (< 85 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482253)) (or (< 79 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481758)) (or (< 96 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147483254)) (or (< 90 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482693)) (or (< .cse3 2147483351) (< 97 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1275) (* |ULTIMATE.start_main_~i~0#1| 50))))))) [2022-11-19 07:34:40,401 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2022-11-19 07:34:40,401 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-19 07:34:40,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-19 07:34:40,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:34:40,402 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-19 07:34:40,402 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-19 07:34:40,402 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-19 07:34:40,402 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-11-19 07:34:40,405 INFO L444 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:40,407 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:34:40,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:40 BoogieIcfgContainer [2022-11-19 07:34:40,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:34:40,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:34:40,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:34:40,455 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:34:40,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:26:40" (3/4) ... [2022-11-19 07:34:40,458 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:34:40,468 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:34:40,468 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 07:34:40,468 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:34:40,469 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:34:40,498 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:34:40,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:34:40,499 INFO L158 Benchmark]: Toolchain (without parser) took 480536.27ms. Allocated memory was 127.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 91.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 528.1MB. Max. memory is 16.1GB. [2022-11-19 07:34:40,499 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:34:40,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.94ms. Allocated memory is still 127.9MB. Free memory was 91.5MB in the beginning and 102.8MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:34:40,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.80ms. Allocated memory is still 127.9MB. Free memory was 102.8MB in the beginning and 101.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:34:40,500 INFO L158 Benchmark]: Boogie Preprocessor took 27.16ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 100.6MB in the end (delta: 672.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:34:40,500 INFO L158 Benchmark]: RCFGBuilder took 411.64ms. Allocated memory is still 127.9MB. Free memory was 100.6MB in the beginning and 89.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:34:40,501 INFO L158 Benchmark]: TraceAbstraction took 479706.06ms. Allocated memory was 127.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 88.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 981.9MB. Max. memory is 16.1GB. [2022-11-19 07:34:40,501 INFO L158 Benchmark]: Witness Printer took 43.88ms. Allocated memory is still 1.8GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:34:40,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.94ms. Allocated memory is still 127.9MB. Free memory was 91.5MB in the beginning and 102.8MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.80ms. Allocated memory is still 127.9MB. Free memory was 102.8MB in the beginning and 101.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.16ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 100.6MB in the end (delta: 672.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 411.64ms. Allocated memory is still 127.9MB. Free memory was 100.6MB in the beginning and 89.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 479706.06ms. Allocated memory was 127.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 88.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 981.9MB. Max. memory is 16.1GB. * Witness Printer took 43.88ms. Allocated memory is still 1.8GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 479.5s, OverallIterations: 13, TraceHistogramMax: 132, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 390.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20237 SdHoareTripleChecker+Valid, 33.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20237 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 28.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 9962 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58694 IncrementalHoareTripleChecker+Invalid, 68656 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9962 mSolverCounterUnsat, 48 mSDtfsCounter, 58694 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3467 GetRequests, 1874 SyntacticMatches, 0 SemanticMatches, 1593 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280624 ImplicationChecksByTransitivity, 404.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=791occurred in iteration=12, InterpolantAutomatonStates: 970, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 8 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1052 HoareAnnotationTreeSize, 2 FomulaSimplifications, 13328 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8873 FormulaSimplificationTreeSizeReductionInter, 7.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 66.8s InterpolantComputationTime, 2359 NumberOfCodeBlocks, 2359 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 3096 ConstructedInterpolants, 0 QuantifiedInterpolants, 18078 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1416 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 51359/100787 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 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((c + 2 * i < 2147483647 && 0 <= c) && c + 1596 <= 56 * i) || ((0 <= c && i <= 113) && c + 136 <= 16 * i)) || ((c + 210 <= i * 20 && 0 <= c) && i * 10 + c < 2147483593)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1378 <= 52 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1128 <= 47 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 703 <= i * 37)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 666 <= i * 36)) || ((c + 2 * i < 2147483647 && 0 <= c) && 861 + c <= 41 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && 1953 + c <= 62 * i)) || (((c < 2147479228 && 66 <= i) && 0 <= c) && c + i < 2147483647)) || ((0 <= c && i <= 1) && c + 1 <= i)) || ((0 <= c && 66 + c <= i * 11) && i <= 110)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 528 <= 32 * i)) || ((0 <= c && c + 3 * i < 2147483642) && c + 55 <= i * 10)) || ((0 <= c && c + i <= 0) && c <= 6 * i)) || ((2080 + c <= 64 * i && i <= 100) && 0 <= c)) || ((351 + c <= i * 26 && 0 <= c) && 6 * i + c < 2147483633)) || ((c + 2 * i < 2147483647 && c + 780 <= i * 39) && 0 <= c)) || ((0 <= c && c + i < 2147480876) && 67 <= i)) || ((0 <= c && 153 + c <= i * 17) && c + 14 * i < 2147483557)) || ((c + 2 * i < 2147483647 && c + 1770 <= 59 * i) && 0 <= c)) || ((c + 2 * i < 2147483647 && 0 <= c) && 465 + c <= 30 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1081 <= 46 * i)) || ((i <= 111 && 0 <= c) && 91 + c <= i * 13)) || ((c + 2 * i < 2147483647 && c + 1891 <= i * 61) && 0 <= c)) || ((c + 2 * i < 2147483647 && 0 <= c) && 903 + c <= 42 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && 990 + c <= 44 * i)) || ((0 <= c && 40 + c <= i * 10) && i <= 5)) || ((595 + c <= i * 34 && 0 <= c) && c + 2 * i < 2147481323)) || ((c + 1711 <= i * 58 && c + 2 * i < 2147483647) && 0 <= c)) || ((c + 1431 <= 53 * i && c + 2 * i < 2147483647) && 0 <= c)) || ((0 <= c && c + i * 12 < 2147483570) && 190 + c <= 19 * i)) || ((c + 2 * i < 2147483647 && 3 + c <= 2 * i) && 0 <= c)) || ((0 <= c && i <= 112) && c + 105 <= 14 * i)) || ((253 + c <= 22 * i && 0 <= c) && c + 9 * i < 2147483612)) || ((0 <= c && c + 36 <= i * 8) && i <= 106)) || ((c + 2 * i < 2147483647 && 0 <= c) && 1225 + c <= 49 * i)) || ((0 <= c && i <= 4) && 30 + c <= 9 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1540 <= i * 55)) || (((156 + c <= i * 18 && 0 <= c) && 24 <= i) && i * 8 + c < 2147483620)) || ((0 <= c && c + 406 <= i * 28) && c + 3 * i < 2147483645)) || (((0 <= c && c + 175 <= 19 * i) && 25 <= i) && c + 7 * i < 2147483627)) || ((c + 2 * i < 2147483647 && 0 <= c) && 21 + c <= 6 * i)) || (((((((((((((((((((((((((((((((((((87 < i || c + i < 2147482426) && (c + i < 2147481226 || 72 < i)) && c + i <= 2147483647) && (78 < i || c + i < 2147481679)) && (88 < i || c + i < 2147482514)) && (c + i < 2147482784 || 91 < i)) && (73 < i || c + i < 2147481299)) && (c + i < 2147481838 || 80 < i)) && (76 < i || c + i < 2147481524)) && (69 < i || c + i < 2147481013)) && (93 < i || c + i < 2147482969)) && (82 < i || c + i < 2147482001)) && (89 < i || c + i < 2147482603)) && (c + i < 2147481083 || 70 < i)) && 0 <= c) && (74 < i || c + i < 2147481373)) && (81 < i || c + i < 2147481919)) && (c + i < 2147482168 || 84 < i)) && (71 < i || c + i < 2147481154)) && (!(i < 100) || c + 2 * i < 2147483647)) && (c + i < 2147482084 || 83 < i)) && (c + i < 2147483158 || 95 < i)) && (c + i < 2147480944 || 68 < i)) && (c + i < 2147482876 || 92 < i)) && (c + i < 2147481601 || 77 < i)) && (86 < i || c + i < 2147482339)) && (98 < i || c + i < 2147483449)) && (c + i < 2147481448 || 75 < i)) && (c + i < 2147483063 || 94 < i)) && 68 <= i) && (85 < i || c + i < 2147482253)) && (79 < i || c + i < 2147481758)) && (96 < i || c + i < 2147483254)) && (90 < i || c + i < 2147482693)) && (c + i < 2147483351 || 97 < i))) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1275 <= i * 50) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:34:40,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684cb2ab-9308-40a4-b81a-27f00bbaef10/bin/utaipan-I9t0OCRTmS/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