./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_09_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_09_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba --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 64bit --witnessprinter.graph.data.programhash e149814b570a219b8765979fd76a7b8122471d93eb9f9186bc97c78c8e439591 --- 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-b5237d8 [2022-11-22 01:40:21,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:40:21,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:40:21,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:40:21,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:40:21,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:40:21,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:40:21,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:40:21,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:40:21,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:40:21,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:40:21,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:40:21,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:40:21,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:40:21,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:40:21,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:40:21,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:40:21,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:40:21,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:40:21,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:40:21,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:40:21,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:40:21,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:40:21,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:40:21,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:40:21,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:40:21,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:40:21,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:40:21,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:40:21,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:40:21,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:40:21,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:40:21,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:40:21,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:40:21,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:40:21,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:40:21,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:40:21,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:40:21,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:40:21,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:40:21,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:40:21,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:40:21,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:40:21,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:40:21,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:40:21,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:40:21,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:40:21,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:40:21,630 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:40:21,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:40:21,630 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:40:21,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:40:21,632 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:40:21,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:40:21,633 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:40:21,633 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:40:21,633 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:40:21,633 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:40:21,634 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:40:21,634 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:40:21,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:40:21,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:40:21,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:40:21,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:40:21,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:40:21,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:40:21,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:40:21,637 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:40:21,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:40:21,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:40:21,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:40:21,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:40:21,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:40:21,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:40:21,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:40:21,641 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:40:21,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:40:21,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:40:21,642 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:40:21,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:40:21,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:40:21,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:40:21,643 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_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e149814b570a219b8765979fd76a7b8122471d93eb9f9186bc97c78c8e439591 [2022-11-22 01:40:21,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:40:21,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:40:21,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:40:22,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:40:22,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:40:22,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_09_good.i [2022-11-22 01:40:25,066 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:40:25,524 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:40:25,524 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_09_good.i [2022-11-22 01:40:25,551 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/data/fe15c3f12/9a58a003bcf74aafb0e8c61384919f11/FLAG43c07d4ef [2022-11-22 01:40:25,572 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/data/fe15c3f12/9a58a003bcf74aafb0e8c61384919f11 [2022-11-22 01:40:25,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:40:25,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:40:25,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:40:25,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:40:25,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:40:25,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:40:25" (1/1) ... [2022-11-22 01:40:25,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407397bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:25, skipping insertion in model container [2022-11-22 01:40:25,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:40:25" (1/1) ... [2022-11-22 01:40:25,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:40:25,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:40:26,036 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:40:26,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:40:26,598 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:40:26,636 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:40:26,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:40:26,888 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:40:26,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26 WrapperNode [2022-11-22 01:40:26,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:40:26,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:40:26,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:40:26,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:40:26,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:26,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:26,984 INFO L138 Inliner]: procedures = 504, calls = 85, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 119 [2022-11-22 01:40:26,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:40:26,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:40:26,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:40:26,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:40:26,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:26,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:26,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,009 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:40:27,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:40:27,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:40:27,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:40:27,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (1/1) ... [2022-11-22 01:40:27,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:40:27,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:27,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:40:27,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:40:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-22 01:40:27,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-22 01:40:27,133 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-22 01:40:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 01:40:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 01:40:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:40:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:40:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:40:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:40:27,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:40:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:40:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 01:40:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:40:27,291 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:40:27,293 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:40:27,514 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:40:27,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:40:27,550 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:40:27,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:40:27 BoogieIcfgContainer [2022-11-22 01:40:27,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:40:27,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:40:27,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:40:27,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:40:27,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:40:25" (1/3) ... [2022-11-22 01:40:27,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1505c59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:40:27, skipping insertion in model container [2022-11-22 01:40:27,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:26" (2/3) ... [2022-11-22 01:40:27,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1505c59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:40:27, skipping insertion in model container [2022-11-22 01:40:27,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:40:27" (3/3) ... [2022-11-22 01:40:27,562 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_09_good.i [2022-11-22 01:40:27,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:40:27,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 01:40:27,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:40:27,639 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;@539eeab3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:40:27,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 01:40:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 47 states have internal predecessors, (49), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-22 01:40:27,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:40:27,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:27,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:27,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:27,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -906031154, now seen corresponding path program 1 times [2022-11-22 01:40:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:27,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084682083] [2022-11-22 01:40:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:27,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:27,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084682083] [2022-11-22 01:40:27,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084682083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:27,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:27,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202644820] [2022-11-22 01:40:27,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:27,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:27,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:28,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:28,006 INFO L87 Difference]: Start difference. First operand has 53 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 47 states have internal predecessors, (49), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:40:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:28,068 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2022-11-22 01:40:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:28,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-22 01:40:28,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:28,079 INFO L225 Difference]: With dead ends: 99 [2022-11-22 01:40:28,079 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:40:28,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:28,086 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:28,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 57 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:28,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:40:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-22 01:40:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 41 states have internal predecessors, (41), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-22 01:40:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-11-22 01:40:28,153 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 9 [2022-11-22 01:40:28,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:28,154 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-11-22 01:40:28,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:40:28,155 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-11-22 01:40:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:40:28,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:28,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:28,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:40:28,158 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:28,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash 882841139, now seen corresponding path program 1 times [2022-11-22 01:40:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:28,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599540773] [2022-11-22 01:40:28,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:28,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:28,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:28,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599540773] [2022-11-22 01:40:28,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599540773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:28,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:28,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:40:28,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148661812] [2022-11-22 01:40:28,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:28,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:28,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:28,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:28,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:28,351 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:40:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:28,378 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2022-11-22 01:40:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:28,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-22 01:40:28,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:28,380 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:40:28,381 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 01:40:28,381 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 [2022-11-22 01:40:28,382 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:28,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 62 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 01:40:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-22 01:40:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 40 states have internal predecessors, (40), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-22 01:40:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2022-11-22 01:40:28,393 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 11 [2022-11-22 01:40:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:28,393 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2022-11-22 01:40:28,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:40:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2022-11-22 01:40:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:40:28,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:28,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:28,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:40:28,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1598271604, now seen corresponding path program 1 times [2022-11-22 01:40:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:28,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151151444] [2022-11-22 01:40:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:28,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:28,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:28,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151151444] [2022-11-22 01:40:28,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151151444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:28,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:28,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:40:28,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995523422] [2022-11-22 01:40:28,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:28,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:28,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:28,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:28,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:28,521 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:40:28,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:28,597 INFO L93 Difference]: Finished difference Result 112 states and 141 transitions. [2022-11-22 01:40:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-22 01:40:28,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:28,606 INFO L225 Difference]: With dead ends: 112 [2022-11-22 01:40:28,606 INFO L226 Difference]: Without dead ends: 78 [2022-11-22 01:40:28,606 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 [2022-11-22 01:40:28,608 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 30 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:28,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 144 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-22 01:40:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 49. [2022-11-22 01:40:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 41 states have internal predecessors, (43), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-22 01:40:28,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-11-22 01:40:28,636 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 12 [2022-11-22 01:40:28,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:28,637 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-11-22 01:40:28,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:40:28,637 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2022-11-22 01:40:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:40:28,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:28,642 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:28,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:40:28,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1023207007, now seen corresponding path program 1 times [2022-11-22 01:40:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:28,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804758036] [2022-11-22 01:40:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:40:28,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:28,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804758036] [2022-11-22 01:40:28,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804758036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:28,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:28,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:28,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432770379] [2022-11-22 01:40:28,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:28,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:28,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:28,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:28,801 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:40:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:28,861 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2022-11-22 01:40:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-22 01:40:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:28,863 INFO L225 Difference]: With dead ends: 80 [2022-11-22 01:40:28,863 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 01:40:28,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:28,865 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:28,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 47 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:28,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 01:40:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-22 01:40:28,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 39 states have internal predecessors, (40), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 01:40:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2022-11-22 01:40:28,892 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 19 [2022-11-22 01:40:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:28,893 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2022-11-22 01:40:28,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:40:28,894 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2022-11-22 01:40:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:40:28,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:28,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:28,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:40:28,896 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:28,897 INFO L85 PathProgramCache]: Analyzing trace with hash 172725796, now seen corresponding path program 1 times [2022-11-22 01:40:28,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:28,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832319991] [2022-11-22 01:40:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:28,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:40:29,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832319991] [2022-11-22 01:40:29,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832319991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:40:29,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719404814] [2022-11-22 01:40:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:29,017 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:40:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,042 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2022-11-22 01:40:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:29,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-22 01:40:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,044 INFO L225 Difference]: With dead ends: 47 [2022-11-22 01:40:29,044 INFO L226 Difference]: Without dead ends: 46 [2022-11-22 01:40:29,045 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 [2022-11-22 01:40:29,051 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 17 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:29,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-22 01:40:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-22 01:40:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 01:40:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-11-22 01:40:29,069 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 20 [2022-11-22 01:40:29,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,069 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-11-22 01:40:29,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:40:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-11-22 01:40:29,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:40:29,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,073 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:40:29,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:29,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1059532481, now seen corresponding path program 1 times [2022-11-22 01:40:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119706514] [2022-11-22 01:40:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:40:29,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119706514] [2022-11-22 01:40:29,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119706514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:40:29,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101210420] [2022-11-22 01:40:29,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:29,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:29,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:29,169 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:40:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,218 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-11-22 01:40:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:29,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-22 01:40:29,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,222 INFO L225 Difference]: With dead ends: 68 [2022-11-22 01:40:29,222 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:40:29,223 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 [2022-11-22 01:40:29,225 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:29,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 85 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:40:29,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-22 01:40:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 39 states have internal predecessors, (41), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 01:40:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2022-11-22 01:40:29,242 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 21 [2022-11-22 01:40:29,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,243 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2022-11-22 01:40:29,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:40:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2022-11-22 01:40:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:40:29,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,246 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:40:29,247 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:29,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash -768304261, now seen corresponding path program 1 times [2022-11-22 01:40:29,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230622321] [2022-11-22 01:40:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:40:29,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230622321] [2022-11-22 01:40:29,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230622321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:40:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660662409] [2022-11-22 01:40:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:29,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:29,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:29,395 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:40:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,435 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2022-11-22 01:40:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:29,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2022-11-22 01:40:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,439 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:40:29,439 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 01:40:29,440 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 [2022-11-22 01:40:29,443 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 78 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 [2022-11-22 01:40:29,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 78 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 01:40:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-22 01:40:29,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 38 states have internal predecessors, (40), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 01:40:29,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2022-11-22 01:40:29,460 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 26 [2022-11-22 01:40:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,460 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2022-11-22 01:40:29,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:40:29,461 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2022-11-22 01:40:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:40:29,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,465 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:40:29,466 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1952371809, now seen corresponding path program 1 times [2022-11-22 01:40:29,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076196935] [2022-11-22 01:40:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:40:29,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076196935] [2022-11-22 01:40:29,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076196935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:40:29,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849308968] [2022-11-22 01:40:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:29,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:29,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:29,566 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:40:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,605 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2022-11-22 01:40:29,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:29,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-11-22 01:40:29,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,607 INFO L225 Difference]: With dead ends: 47 [2022-11-22 01:40:29,616 INFO L226 Difference]: Without dead ends: 46 [2022-11-22 01:40:29,617 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 [2022-11-22 01:40:29,618 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 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 [2022-11-22 01:40:29,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-22 01:40:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-22 01:40:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 37 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 01:40:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-11-22 01:40:29,625 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 27 [2022-11-22 01:40:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,626 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-11-22 01:40:29,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:40:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-11-22 01:40:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:40:29,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,634 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:40:29,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:29,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,635 INFO L85 PathProgramCache]: Analyzing trace with hash 462357975, now seen corresponding path program 1 times [2022-11-22 01:40:29,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430881389] [2022-11-22 01:40:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:40:29,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430881389] [2022-11-22 01:40:29,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430881389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:29,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335649805] [2022-11-22 01:40:29,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:29,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:29,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:29,753 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:40:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,795 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-11-22 01:40:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-11-22 01:40:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,798 INFO L225 Difference]: With dead ends: 46 [2022-11-22 01:40:29,798 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:40:29,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:29,800 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 30 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:29,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:40:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-22 01:40:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-22 01:40:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2022-11-22 01:40:29,828 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 33 [2022-11-22 01:40:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,831 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2022-11-22 01:40:29,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:40:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2022-11-22 01:40:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:40:29,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,833 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:40:29,833 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 01:40:29,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1448195479, now seen corresponding path program 1 times [2022-11-22 01:40:29,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616158630] [2022-11-22 01:40:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:40:29,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616158630] [2022-11-22 01:40:29,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616158630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:29,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404296636] [2022-11-22 01:40:29,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:29,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:29,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:29,952 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:40:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,989 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2022-11-22 01:40:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:29,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-22 01:40:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,991 INFO L225 Difference]: With dead ends: 45 [2022-11-22 01:40:29,991 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:40:29,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:29,993 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 27 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 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 [2022-11-22 01:40:29,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:40:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:40:29,995 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) [2022-11-22 01:40:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:40:29,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-11-22 01:40:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,997 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:40:29,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-22 01:40:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:40:29,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:40:30,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-22 01:40:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-22 01:40:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-22 01:40:30,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-22 01:40:30,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-22 01:40:30,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-22 01:40:30,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-22 01:40:30,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-22 01:40:30,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:40:30,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:40:30,178 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-22 01:40:30,178 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-22 01:40:30,179 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-22 01:40:30,179 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-22 01:40:30,179 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-11-22 01:40:30,179 INFO L899 garLoopResultBuilder]: For program point L1588(lines 1588 1601) no Hoare annotation was computed. [2022-11-22 01:40:30,180 INFO L899 garLoopResultBuilder]: For program point L1588-2(lines 1585 1615) no Hoare annotation was computed. [2022-11-22 01:40:30,185 INFO L895 garLoopResultBuilder]: At program point L1580(line 1580) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647)) [2022-11-22 01:40:30,185 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1566 1582) no Hoare annotation was computed. [2022-11-22 01:40:30,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1648) no Hoare annotation was computed. [2022-11-22 01:40:30,186 INFO L899 garLoopResultBuilder]: For program point L1572(lines 1572 1581) no Hoare annotation was computed. [2022-11-22 01:40:30,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-11-22 01:40:30,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:40:30,186 INFO L895 garLoopResultBuilder]: At program point L1622(line 1622) the Hoare annotation is: false [2022-11-22 01:40:30,187 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-11-22 01:40:30,188 INFO L899 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2022-11-22 01:40:30,188 INFO L899 garLoopResultBuilder]: For program point L1606-1(line 1606) no Hoare annotation was computed. [2022-11-22 01:40:30,189 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-11-22 01:40:30,190 INFO L895 garLoopResultBuilder]: At program point L1664(line 1664) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1)) [2022-11-22 01:40:30,190 INFO L899 garLoopResultBuilder]: For program point L1664-1(line 1664) no Hoare annotation was computed. [2022-11-22 01:40:30,190 INFO L899 garLoopResultBuilder]: For program point L1631(line 1631) no Hoare annotation was computed. [2022-11-22 01:40:30,190 INFO L895 garLoopResultBuilder]: At program point L1598(line 1598) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (not (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:40:30,191 INFO L899 garLoopResultBuilder]: For program point L1631-1(line 1631) no Hoare annotation was computed. [2022-11-22 01:40:30,191 INFO L899 garLoopResultBuilder]: For program point L1598-1(lines 1592 1599) no Hoare annotation was computed. [2022-11-22 01:40:30,191 INFO L899 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2022-11-22 01:40:30,191 INFO L899 garLoopResultBuilder]: For program point L1648-1(line 1648) no Hoare annotation was computed. [2022-11-22 01:40:30,191 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-11-22 01:40:30,191 INFO L899 garLoopResultBuilder]: For program point L1574-1(line 1574) no Hoare annotation was computed. [2022-11-22 01:40:30,192 INFO L899 garLoopResultBuilder]: For program point L1616(lines 1616 1636) no Hoare annotation was computed. [2022-11-22 01:40:30,192 INFO L895 garLoopResultBuilder]: At program point L1608(line 1608) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:40:30,192 INFO L899 garLoopResultBuilder]: For program point L1641-2(lines 1638 1653) no Hoare annotation was computed. [2022-11-22 01:40:30,193 INFO L895 garLoopResultBuilder]: At program point L1666(line 1666) the Hoare annotation is: (= ~GLOBAL_CONST_TRUE~0 1) [2022-11-22 01:40:30,193 INFO L895 garLoopResultBuilder]: At program point L1633(line 1633) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|) 0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:40:30,194 INFO L895 garLoopResultBuilder]: At program point L1666-1(line 1666) the Hoare annotation is: (= ~GLOBAL_CONST_TRUE~0 1) [2022-11-22 01:40:30,194 INFO L899 garLoopResultBuilder]: For program point L1592(lines 1592 1599) no Hoare annotation was computed. [2022-11-22 01:40:30,194 INFO L895 garLoopResultBuilder]: At program point L1650(line 1650) the Hoare annotation is: (= ~GLOBAL_CONST_TRUE~0 1) [2022-11-22 01:40:30,194 INFO L899 garLoopResultBuilder]: For program point L1584(lines 1584 1615) no Hoare annotation was computed. [2022-11-22 01:40:30,194 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647)) [2022-11-22 01:40:30,195 INFO L895 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: false [2022-11-22 01:40:30,195 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1631) no Hoare annotation was computed. [2022-11-22 01:40:30,195 INFO L899 garLoopResultBuilder]: For program point L1552(lines 1552 1565) no Hoare annotation was computed. [2022-11-22 01:40:30,195 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1549 1583) no Hoare annotation was computed. [2022-11-22 01:40:30,195 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:40:30,195 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1631) no Hoare annotation was computed. [2022-11-22 01:40:30,196 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-11-22 01:40:30,196 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (< 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647)) [2022-11-22 01:40:30,196 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-11-22 01:40:30,196 INFO L899 garLoopResultBuilder]: For program point L1620(lines 1620 1627) no Hoare annotation was computed. [2022-11-22 01:40:30,196 INFO L899 garLoopResultBuilder]: For program point L1620-1(lines 1617 1636) no Hoare annotation was computed. [2022-11-22 01:40:30,197 INFO L895 garLoopResultBuilder]: At program point L1612(line 1612) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-22 01:40:30,197 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1648) no Hoare annotation was computed. [2022-11-22 01:40:30,200 INFO L899 garLoopResultBuilder]: For program point L1637(lines 1637 1653) no Hoare annotation was computed. [2022-11-22 01:40:30,200 INFO L899 garLoopResultBuilder]: For program point L1604(lines 1604 1613) no Hoare annotation was computed. [2022-11-22 01:40:30,204 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:30,207 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:40:30,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:40:30 BoogieIcfgContainer [2022-11-22 01:40:30,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:40:30,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:40:30,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:40:30,232 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:40:30,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:40:27" (3/4) ... [2022-11-22 01:40:30,235 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:40:30,241 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-22 01:40:30,241 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-22 01:40:30,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-22 01:40:30,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 01:40:30,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:40:30,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:40:30,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:40:30,326 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:40:30,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:40:30,332 INFO L158 Benchmark]: Toolchain (without parser) took 4755.02ms. Allocated memory is still 203.4MB. Free memory was 172.1MB in the beginning and 80.4MB in the end (delta: 91.7MB). Peak memory consumption was 93.8MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,332 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory was 107.0MB in the beginning and 107.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:40:30,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1309.93ms. Allocated memory is still 203.4MB. Free memory was 171.6MB in the beginning and 108.3MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.55ms. Allocated memory is still 203.4MB. Free memory was 108.3MB in the beginning and 105.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,336 INFO L158 Benchmark]: Boogie Preprocessor took 27.10ms. Allocated memory is still 203.4MB. Free memory was 105.3MB in the beginning and 103.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,337 INFO L158 Benchmark]: RCFGBuilder took 538.72ms. Allocated memory is still 203.4MB. Free memory was 103.6MB in the beginning and 156.4MB in the end (delta: -52.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,338 INFO L158 Benchmark]: TraceAbstraction took 2675.96ms. Allocated memory is still 203.4MB. Free memory was 155.4MB in the beginning and 84.6MB in the end (delta: 70.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,338 INFO L158 Benchmark]: Witness Printer took 99.49ms. Allocated memory is still 203.4MB. Free memory was 84.6MB in the beginning and 80.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:40:30,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory was 107.0MB in the beginning and 107.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1309.93ms. Allocated memory is still 203.4MB. Free memory was 171.6MB in the beginning and 108.3MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.55ms. Allocated memory is still 203.4MB. Free memory was 108.3MB in the beginning and 105.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.10ms. Allocated memory is still 203.4MB. Free memory was 105.3MB in the beginning and 103.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.72ms. Allocated memory is still 203.4MB. Free memory was 103.6MB in the beginning and 156.4MB in the end (delta: -52.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2675.96ms. Allocated memory is still 203.4MB. Free memory was 155.4MB in the beginning and 84.6MB in the end (delta: 70.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Witness Printer took 99.49ms. Allocated memory is still 203.4MB. Free memory was 84.6MB in the beginning and 80.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 280 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 769 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 497 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 29 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 47 PreInvPairs, 56 NumberOfFragments, 118 HoareAnnotationTreeSize, 47 FomulaSimplifications, 49 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 112 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 410 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1666]: Loop Invariant Derived loop invariant: GLOBAL_CONST_TRUE == 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:40:30,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38b05de5-a453-4925-95e1-77cc39c82808/bin/utaipan-g80aRyZoba/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