./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c60dc3ce59c2c65912da9b7b458247bdc42b4524b29b39bec7ce63758c18c031 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:47:05,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:47:05,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:47:05,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:47:05,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:47:05,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:47:05,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:47:05,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:47:05,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:47:05,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:47:05,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:47:05,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:47:05,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:47:05,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:47:05,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:47:05,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:47:05,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:47:05,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:47:05,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:47:05,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:47:05,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:47:05,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:47:05,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:47:05,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:47:05,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:47:05,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:47:05,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:47:05,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:47:05,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:47:05,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:47:05,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:47:05,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:47:05,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:47:05,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:47:05,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:47:05,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:47:05,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:47:05,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:47:05,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:47:05,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:47:05,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:47:05,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 10:47:05,544 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:47:05,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:47:05,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:47:05,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:47:05,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:47:05,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:47:05,545 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:47:05,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:47:05,545 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:47:05,545 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:47:05,546 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:47:05,546 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:47:05,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:47:05,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:47:05,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:47:05,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:47:05,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:47:05,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:47:05,549 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_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c60dc3ce59c2c65912da9b7b458247bdc42b4524b29b39bec7ce63758c18c031 [2022-12-14 10:47:05,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:47:05,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:47:05,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:47:05,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:47:05,748 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:47:05,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c [2022-12-14 10:47:08,257 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:47:08,413 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:47:08,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength5.c [2022-12-14 10:47:08,417 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/data/f1b62268c/80d0f3b484ef43aaa6fec3f004e78a85/FLAGdb0fd42e7 [2022-12-14 10:47:08,814 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/data/f1b62268c/80d0f3b484ef43aaa6fec3f004e78a85 [2022-12-14 10:47:08,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:47:08,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:47:08,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:47:08,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:47:08,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:47:08,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:08,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296e584f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08, skipping insertion in model container [2022-12-14 10:47:08,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:08,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:47:08,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:47:08,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:47:08,957 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:47:08,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:47:08,983 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:47:08,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08 WrapperNode [2022-12-14 10:47:08,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:47:08,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:47:08,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:47:08,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:47:08,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:08,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,005 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-12-14 10:47:09,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:47:09,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:47:09,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:47:09,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:47:09,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:47:09,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:47:09,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:47:09,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:47:09,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (1/1) ... [2022-12-14 10:47:09,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:47:09,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:09,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:47:09,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:47:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:47:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:47:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:47:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:47:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:47:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:47:09,121 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:47:09,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:47:09,211 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:47:09,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:47:09,235 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 10:47:09,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:47:09 BoogieIcfgContainer [2022-12-14 10:47:09,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:47:09,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:47:09,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:47:09,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:47:09,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:47:08" (1/3) ... [2022-12-14 10:47:09,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baf66be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:47:09, skipping insertion in model container [2022-12-14 10:47:09,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:47:08" (2/3) ... [2022-12-14 10:47:09,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@baf66be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:47:09, skipping insertion in model container [2022-12-14 10:47:09,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:47:09" (3/3) ... [2022-12-14 10:47:09,243 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength5.c [2022-12-14 10:47:09,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:47:09,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 10:47:09,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:47:09,293 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;@45957693, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:47:09,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 10:47:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:47:09,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:09,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:47:09,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:09,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:09,305 INFO L85 PathProgramCache]: Analyzing trace with hash 3080367, now seen corresponding path program 1 times [2022-12-14 10:47:09,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:09,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002110603] [2022-12-14 10:47:09,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:09,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:47:09,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:09,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002110603] [2022-12-14 10:47:09,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002110603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:09,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:47:09,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:47:09,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794446268] [2022-12-14 10:47:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:09,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:47:09,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:09,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:47:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:47:09,499 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:09,564 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-12-14 10:47:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:47:09,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 10:47:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:09,571 INFO L225 Difference]: With dead ends: 37 [2022-12-14 10:47:09,571 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 10:47:09,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:47:09,576 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:09,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 44 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:09,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 10:47:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2022-12-14 10:47:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-12-14 10:47:09,598 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2022-12-14 10:47:09,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:09,598 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-12-14 10:47:09,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,598 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-12-14 10:47:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:47:09,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:09,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:47:09,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:47:09,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash 3080503, now seen corresponding path program 1 times [2022-12-14 10:47:09,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:09,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327518806] [2022-12-14 10:47:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:09,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:09,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:47:09,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:09,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327518806] [2022-12-14 10:47:09,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327518806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:09,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:47:09,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:47:09,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741289132] [2022-12-14 10:47:09,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:09,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:47:09,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:47:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:47:09,692 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:09,726 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-14 10:47:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:47:09,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 10:47:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:09,727 INFO L225 Difference]: With dead ends: 26 [2022-12-14 10:47:09,727 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 10:47:09,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:47:09,729 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:09,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 22 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:09,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 10:47:09,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2022-12-14 10:47:09,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-12-14 10:47:09,732 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 4 [2022-12-14 10:47:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:09,733 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-12-14 10:47:09,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 10:47:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:47:09,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:09,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:47:09,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:47:09,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:09,734 INFO L85 PathProgramCache]: Analyzing trace with hash 95495659, now seen corresponding path program 1 times [2022-12-14 10:47:09,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:09,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544915229] [2022-12-14 10:47:09,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:09,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:47:09,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:09,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544915229] [2022-12-14 10:47:09,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544915229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:09,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:47:09,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:47:09,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976424960] [2022-12-14 10:47:09,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:09,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:47:09,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:09,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:47:09,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:47:09,802 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:09,832 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-14 10:47:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:47:09,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 10:47:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:09,833 INFO L225 Difference]: With dead ends: 22 [2022-12-14 10:47:09,833 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 10:47:09,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:47:09,835 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:09,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 29 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 10:47:09,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 10:47:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.5) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-14 10:47:09,838 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 5 [2022-12-14 10:47:09,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:09,838 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-14 10:47:09,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,839 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-14 10:47:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:47:09,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:09,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:47:09,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:47:09,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:09,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:09,840 INFO L85 PathProgramCache]: Analyzing trace with hash 97524663, now seen corresponding path program 1 times [2022-12-14 10:47:09,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:09,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993743537] [2022-12-14 10:47:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:09,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:47:09,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:09,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993743537] [2022-12-14 10:47:09,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993743537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:09,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:47:09,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:47:09,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605165265] [2022-12-14 10:47:09,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:09,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:47:09,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:09,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:47:09,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:47:09,904 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:09,951 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-12-14 10:47:09,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:47:09,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 10:47:09,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:09,954 INFO L225 Difference]: With dead ends: 45 [2022-12-14 10:47:09,954 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 10:47:09,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:47:09,956 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:09,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 25 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 10:47:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2022-12-14 10:47:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-14 10:47:09,963 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2022-12-14 10:47:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:09,963 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-14 10:47:09,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 10:47:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 10:47:09,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:09,964 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-14 10:47:09,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:47:09,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1572955220, now seen corresponding path program 1 times [2022-12-14 10:47:09,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:09,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663838776] [2022-12-14 10:47:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:09,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:10,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:10,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663838776] [2022-12-14 10:47:10,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663838776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:10,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:47:10,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:47:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99357798] [2022-12-14 10:47:10,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:10,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:47:10,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:47:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:47:10,043 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:10,079 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-12-14 10:47:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:47:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 10:47:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:10,081 INFO L225 Difference]: With dead ends: 64 [2022-12-14 10:47:10,081 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 10:47:10,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:47:10,082 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:10,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 31 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:10,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 10:47:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2022-12-14 10:47:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-12-14 10:47:10,088 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 7 [2022-12-14 10:47:10,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:10,088 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-12-14 10:47:10,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:10,089 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-12-14 10:47:10,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:47:10,089 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:10,090 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:10,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:47:10,090 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:10,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:10,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1558155801, now seen corresponding path program 1 times [2022-12-14 10:47:10,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:10,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334869726] [2022-12-14 10:47:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:10,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:10,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:10,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334869726] [2022-12-14 10:47:10,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334869726] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:10,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67562143] [2022-12-14 10:47:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:10,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:10,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:10,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:10,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:47:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:10,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:47:10,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:10,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:47:10,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67562143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:10,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:47:10,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 10:47:10,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565725180] [2022-12-14 10:47:10,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:10,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:47:10,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:10,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:47:10,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:47:10,274 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:10,321 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-12-14 10:47:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:47:10,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 10:47:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:10,322 INFO L225 Difference]: With dead ends: 38 [2022-12-14 10:47:10,322 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 10:47:10,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:47:10,323 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:10,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 55 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 10:47:10,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2022-12-14 10:47:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:10,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-14 10:47:10,328 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 11 [2022-12-14 10:47:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:10,329 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-14 10:47:10,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:10,329 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 10:47:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:47:10,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:10,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:10,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:47:10,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:10,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1058189629, now seen corresponding path program 1 times [2022-12-14 10:47:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:10,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571977016] [2022-12-14 10:47:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:10,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:10,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571977016] [2022-12-14 10:47:10,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571977016] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:10,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100487834] [2022-12-14 10:47:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:10,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:10,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:10,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:10,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:47:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:10,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:47:10,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:10,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:10,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:47:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:10,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100487834] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:47:10,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [491631270] [2022-12-14 10:47:10,802 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 10:47:10,802 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:47:10,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:47:10,809 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:47:10,809 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:47:10,867 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 10:47:10,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 10:47:10,890 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 10:47:10,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 10:47:10,916 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:47:10,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:11,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:11,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:47:11,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2022-12-14 10:47:11,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:11,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,415 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-12-14 10:47:11,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 122 [2022-12-14 10:47:11,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:11,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:11,580 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:47:12,102 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '627#(and (<= |ULTIMATE.start_foo_#in~b#1.offset| 0) (<= 0 |ULTIMATE.start_foo_~b#1.offset|) (= (select |ULTIMATE.start_foo_~a~0#1| |ULTIMATE.start_foo_~i~0#1|) (select (select |#memory_int| |ULTIMATE.start_foo_~b#1.base|) (+ |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~b#1.offset|))) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_foo_#in~b#1.base|) (= |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_#t~post0#1|) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_foo_~b#1.base|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_foo_#in~b#1.offset|) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 0 |ULTIMATE.start_foo_#in~size#1|) (<= 0 |ULTIMATE.start_main_~#mask~0#1.base|) (<= 0 |ULTIMATE.start_main_~c~0#1.base|) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|) (<= 0 |ULTIMATE.start_main_~#mask~0#1.offset|) (<= |ULTIMATE.start_foo_~b#1.offset| 0) (< 2147483646 |ULTIMATE.start_foo_#t~post0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 10:47:12,102 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:47:12,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:47:12,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 10:47:12,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151355916] [2022-12-14 10:47:12,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:47:12,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:47:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:12,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:47:12,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-12-14 10:47:12,104 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:12,184 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2022-12-14 10:47:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 10:47:12,185 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 10:47:12,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:12,186 INFO L225 Difference]: With dead ends: 89 [2022-12-14 10:47:12,186 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 10:47:12,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:47:12,187 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 51 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:12,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 72 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 10:47:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 35. [2022-12-14 10:47:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-12-14 10:47:12,192 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 12 [2022-12-14 10:47:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:12,192 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-12-14 10:47:12,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-12-14 10:47:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:47:12,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:12,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:12,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:47:12,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 10:47:12,394 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:12,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:12,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1058193857, now seen corresponding path program 1 times [2022-12-14 10:47:12,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:12,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656015845] [2022-12-14 10:47:12,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:12,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:12,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:12,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656015845] [2022-12-14 10:47:12,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656015845] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:12,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365689660] [2022-12-14 10:47:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:12,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:12,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:12,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:12,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:47:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:12,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:47:12,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:12,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:47:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365689660] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:47:12,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [884677512] [2022-12-14 10:47:12,609 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 10:47:12,609 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:47:12,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:47:12,610 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:47:12,610 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:47:12,629 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 10:47:12,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 10:47:12,646 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 10:47:12,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 10:47:12,670 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:47:12,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:12,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:12,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:12,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:12,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:12,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:47:12,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2022-12-14 10:47:12,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:12,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:13,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:13,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:47:13,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2022-12-14 10:47:13,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:13,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:13,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:13,133 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:47:13,444 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '874#(and (<= |ULTIMATE.start_foo_#in~b#1.offset| 0) (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 0 |ULTIMATE.start_foo_~b#1.offset|) (<= |ULTIMATE.start_foo_#res#1| 2147483647) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 0 |ULTIMATE.start_foo_#in~b#1.base|) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_#t~post2#1|) (<= 0 |ULTIMATE.start_foo_~b#1.base|) (<= 0 |ULTIMATE.start_foo_#in~b#1.offset|) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= |ULTIMATE.start_foo_~size#1| |ULTIMATE.start_foo_~i~0#1|) (<= 0 |ULTIMATE.start_foo_~size#1|) (<= 0 |ULTIMATE.start_foo_#in~size#1|) (= |ULTIMATE.start_foo_#res#1| (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (<= 0 |ULTIMATE.start_main_~#mask~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.base|) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (= |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_#res#1|) (= |ULTIMATE.start_main_#t~post2#1| |ULTIMATE.start_main_~i~1#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_foo_~b#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 10:47:13,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:47:13,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:47:13,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 10 [2022-12-14 10:47:13,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473622245] [2022-12-14 10:47:13,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:47:13,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:47:13,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:13,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:47:13,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-12-14 10:47:13,446 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:13,507 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2022-12-14 10:47:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 10:47:13,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 10:47:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:13,507 INFO L225 Difference]: With dead ends: 59 [2022-12-14 10:47:13,508 INFO L226 Difference]: Without dead ends: 58 [2022-12-14 10:47:13,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:47:13,508 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 33 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:13,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 28 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-14 10:47:13,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 32. [2022-12-14 10:47:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-12-14 10:47:13,512 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 12 [2022-12-14 10:47:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:13,513 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-12-14 10:47:13,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-12-14 10:47:13,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 10:47:13,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:13,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:13,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:47:13,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 10:47:13,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:13,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:13,717 INFO L85 PathProgramCache]: Analyzing trace with hash -724449185, now seen corresponding path program 1 times [2022-12-14 10:47:13,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:13,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130198349] [2022-12-14 10:47:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:13,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:13,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:13,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130198349] [2022-12-14 10:47:13,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130198349] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:13,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491923260] [2022-12-14 10:47:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:13,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:13,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:13,794 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:13,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:47:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:13,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:47:13,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:13,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:47:13,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491923260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:13,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:47:13,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 10:47:13,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709719637] [2022-12-14 10:47:13,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:13,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:47:13,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:13,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:47:13,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:47:13,858 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:13,895 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-12-14 10:47:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:47:13,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 10:47:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:13,895 INFO L225 Difference]: With dead ends: 34 [2022-12-14 10:47:13,896 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 10:47:13,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:47:13,896 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:13,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 10:47:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2022-12-14 10:47:13,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-12-14 10:47:13,901 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 13 [2022-12-14 10:47:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:13,901 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-12-14 10:47:13,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-12-14 10:47:13,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 10:47:13,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:13,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:13,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 10:47:14,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:14,102 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:14,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:14,103 INFO L85 PathProgramCache]: Analyzing trace with hash -983088164, now seen corresponding path program 1 times [2022-12-14 10:47:14,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:14,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146032274] [2022-12-14 10:47:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:14,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:14,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:14,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146032274] [2022-12-14 10:47:14,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146032274] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:14,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130104527] [2022-12-14 10:47:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:14,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:14,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:14,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:14,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:47:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:14,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:47:14,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:14,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:14,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:47:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:47:14,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130104527] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:47:14,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [819802560] [2022-12-14 10:47:14,289 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 10:47:14,290 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:47:14,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:47:14,290 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:47:14,290 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:47:14,308 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 10:47:14,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 10:47:14,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 10:47:14,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:14,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:47:14,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 140 [2022-12-14 10:47:14,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:47:14,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 140 [2022-12-14 10:47:14,546 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:47:15,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [819802560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:15,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:47:15,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 15 [2022-12-14 10:47:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188358707] [2022-12-14 10:47:15,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:15,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:47:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:15,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:47:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-12-14 10:47:15,125 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:15,185 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2022-12-14 10:47:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:47:15,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 10:47:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:15,186 INFO L225 Difference]: With dead ends: 46 [2022-12-14 10:47:15,186 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 10:47:15,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-12-14 10:47:15,187 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:15,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:47:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 10:47:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-12-14 10:47:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-12-14 10:47:15,192 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 14 [2022-12-14 10:47:15,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:15,192 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-12-14 10:47:15,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-12-14 10:47:15,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 10:47:15,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:15,193 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 1, 1, 1, 1, 1] [2022-12-14 10:47:15,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:47:15,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 10:47:15,394 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:15,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash 779398444, now seen corresponding path program 2 times [2022-12-14 10:47:15,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:15,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019167813] [2022-12-14 10:47:15,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:15,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 10:47:15,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:15,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019167813] [2022-12-14 10:47:15,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019167813] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:15,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68398251] [2022-12-14 10:47:15,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:47:15,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:15,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:15,521 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:15,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 10:47:15,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 10:47:15,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:47:15,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 10:47:15,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 10:47:15,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:47:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 10:47:15,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68398251] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:47:15,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1238858496] [2022-12-14 10:47:15,629 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 10:47:15,629 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:47:15,629 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:47:15,629 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:47:15,629 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:47:15,642 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 10:47:15,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 10:47:15,655 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 10:47:15,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 10:47:15,669 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:47:15,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:15,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:15,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:15,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:15,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:15,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:47:15,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2022-12-14 10:47:16,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:16,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:16,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:47:16,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2022-12-14 10:47:16,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:16,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:16,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:16,164 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:47:16,581 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1467#(and (<= |ULTIMATE.start_foo_#in~b#1.offset| 0) (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 0 |ULTIMATE.start_foo_~b#1.offset|) (= (select |ULTIMATE.start_foo_~a~0#1| |ULTIMATE.start_foo_~i~0#1|) (select (select |#memory_int| |ULTIMATE.start_foo_~b#1.base|) (+ |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~b#1.offset|))) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_foo_#in~b#1.base|) (= |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_#t~post0#1|) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_foo_~b#1.base|) (<= 0 |ULTIMATE.start_foo_#in~b#1.offset|) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_foo_#in~size#1|) (<= 0 |ULTIMATE.start_main_~#mask~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.base|) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#StackHeapBarrier|) (< |ULTIMATE.start_foo_~i~0#1| |ULTIMATE.start_foo_~size#1|) (<= |ULTIMATE.start_foo_~b#1.offset| 0) (< 2147483646 |ULTIMATE.start_foo_#t~post0#1|) (= |#NULL.base| 0))' at error location [2022-12-14 10:47:16,581 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:47:16,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:47:16,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-12-14 10:47:16,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387870715] [2022-12-14 10:47:16,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:47:16,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:47:16,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:16,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:47:16,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-12-14 10:47:16,583 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:16,727 INFO L93 Difference]: Finished difference Result 80 states and 97 transitions. [2022-12-14 10:47:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:47:16,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 10:47:16,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:16,728 INFO L225 Difference]: With dead ends: 80 [2022-12-14 10:47:16,728 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 10:47:16,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 49 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:47:16,728 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 79 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:16,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 33 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:16,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 10:47:16,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 30. [2022-12-14 10:47:16,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:16,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-12-14 10:47:16,733 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 21 [2022-12-14 10:47:16,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:16,733 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-12-14 10:47:16,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-12-14 10:47:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 10:47:16,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:16,733 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:16,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 10:47:16,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 10:47:16,935 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:47:16,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:16,937 INFO L85 PathProgramCache]: Analyzing trace with hash 906533062, now seen corresponding path program 1 times [2022-12-14 10:47:16,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:16,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321531311] [2022-12-14 10:47:16,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:16,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:47:17,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:17,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321531311] [2022-12-14 10:47:17,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321531311] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:47:17,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133352302] [2022-12-14 10:47:17,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:17,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:17,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:47:17,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:47:17,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 10:47:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:17,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:47:17,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:47:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:47:17,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:47:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:47:17,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133352302] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:47:17,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1242959438] [2022-12-14 10:47:17,098 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 10:47:17,098 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:47:17,098 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:47:17,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:47:17,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:47:17,113 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 10:47:17,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 10:47:17,127 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 10:47:17,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 10:47:17,143 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 10:47:17,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:17,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:17,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,346 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-12-14 10:47:17,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 122 [2022-12-14 10:47:17,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:17,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,575 INFO L321 Elim1Store]: treesize reduction 17, result has 34.6 percent of original size [2022-12-14 10:47:17,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 122 [2022-12-14 10:47:17,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:47:17,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 10:47:17,702 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:47:18,168 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1775#(and (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (= |ULTIMATE.start_main_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* |ULTIMATE.start_main_~i~1#1| 4)))) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_#t~post4#1|) (= |ULTIMATE.start_main_#t~post4#1| |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_main_~#mask~0#1.base|) (= |#NULL.offset| 0) (< (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 32) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 10:47:18,169 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:47:18,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:47:18,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 10:47:18,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876906662] [2022-12-14 10:47:18,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:47:18,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:47:18,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:18,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:47:18,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2022-12-14 10:47:18,170 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:18,211 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-12-14 10:47:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 10:47:18,211 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 10:47:18,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:18,211 INFO L225 Difference]: With dead ends: 37 [2022-12-14 10:47:18,211 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:47:18,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2022-12-14 10:47:18,212 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:18,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 21 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:47:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:47:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:47:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:47:18,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-12-14 10:47:18,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:18,213 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:47:18,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:47:18,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:47:18,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:47:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 10:47:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 10:47:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 10:47:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 10:47:18,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 10:47:18,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 10:47:18,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 10:47:18,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:47:18,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:47:18,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-12-14 10:47:18,847 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-12-14 10:47:18,847 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2022-12-14 10:47:18,847 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~i~1#1|)) (.cse1 (= |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_foo_~size#1|)) (.cse2 (< |ULTIMATE.start_main_~i~1#1| 2147483646))) (or (and .cse0 (= |ULTIMATE.start_foo_~i~0#1| 0) .cse1 .cse2) (and .cse0 (<= 1 |ULTIMATE.start_foo_~i~0#1|) .cse1 .cse2))) [2022-12-14 10:47:18,847 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 21 35) the Hoare annotation is: true [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_foo_~size#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_foo_~size#1| |ULTIMATE.start_foo_~i~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_foo_~i~0#1|))) (or (and .cse0 (< |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse2) (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2))) [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (= |ULTIMATE.start_main_~i~1#1| 0) (= (select |#length| |ULTIMATE.start_main_~#mask~0#1.base|) 32) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#mask~0#1.base|) (= 128 (select |#length| |ULTIMATE.start_main_~#b~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#b~0#1.base|) (= (select |#valid| |ULTIMATE.start_main_~#mask~0#1.base|) 1) (<= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#b~0#1.base|) 1) (= (select |#valid| 0) 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#mask~0#1.offset|) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_foo_~size#1| 2147483647) (< |ULTIMATE.start_main_~i~1#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| |ULTIMATE.start_foo_~i~0#1|) (<= 0 |ULTIMATE.start_foo_~i~0#1|))) [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 10:47:18,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-12-14 10:47:18,849 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2022-12-14 10:47:18,851 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:47:18,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:47:18,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:47:18 BoogieIcfgContainer [2022-12-14 10:47:18,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:47:18,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:47:18,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:47:18,867 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:47:18,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:47:09" (3/4) ... [2022-12-14 10:47:18,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:47:18,877 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-14 10:47:18,877 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 10:47:18,877 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 10:47:18,877 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:47:18,900 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:47:18,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:47:18,901 INFO L158 Benchmark]: Toolchain (without parser) took 10083.44ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 97.0MB in the beginning and 42.0MB in the end (delta: 55.1MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2022-12-14 10:47:18,901 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory was 103.4MB in the beginning and 103.3MB in the end (delta: 90.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:47:18,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.77ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 103.6MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 10:47:18,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.10ms. Allocated memory is still 132.1MB. Free memory was 103.6MB in the beginning and 102.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:47:18,902 INFO L158 Benchmark]: Boogie Preprocessor took 14.82ms. Allocated memory is still 132.1MB. Free memory was 102.0MB in the beginning and 100.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:47:18,902 INFO L158 Benchmark]: RCFGBuilder took 215.77ms. Allocated memory is still 132.1MB. Free memory was 100.5MB in the beginning and 87.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 10:47:18,902 INFO L158 Benchmark]: TraceAbstraction took 9628.01ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 86.8MB in the beginning and 44.1MB in the end (delta: 42.8MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2022-12-14 10:47:18,903 INFO L158 Benchmark]: Witness Printer took 33.41ms. Allocated memory is still 159.4MB. Free memory was 44.1MB in the beginning and 42.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:47:18,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory was 103.4MB in the beginning and 103.3MB in the end (delta: 90.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.77ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 103.6MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.10ms. Allocated memory is still 132.1MB. Free memory was 103.6MB in the beginning and 102.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.82ms. Allocated memory is still 132.1MB. Free memory was 102.0MB in the beginning and 100.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 215.77ms. Allocated memory is still 132.1MB. Free memory was 100.5MB in the beginning and 87.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9628.01ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 86.8MB in the beginning and 44.1MB in the end (delta: 42.8MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. * Witness Printer took 33.41ms. Allocated memory is still 159.4MB. Free memory was 44.1MB in the beginning and 42.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 303 mSDsluCounter, 396 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 515 IncrementalHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 116 mSDtfsCounter, 515 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 338 GetRequests, 189 SyntacticMatches, 22 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=7, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 159 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 19 NumberOfFragments, 128 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1743 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 2169 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 233 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 SizeOfPredicates, 17 NumberOfNonLiveVariables, 747 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 143/215 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 17, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 72, DAG_COMPRESSION_RETAINED_NODES: 35, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((0 <= i && i == 0) && i == size) && i < 2147483646) || (((0 <= i && 1 <= i) && i == size) && i < 2147483646) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((((((b == 0 && i == 0) && unknown-#length-unknown[mask] == 32) && unknown-#StackHeapBarrier-unknown < mask) && 128 == unknown-#length-unknown[b]) && unknown-#StackHeapBarrier-unknown < b) && \valid[mask] == 1) && mask <= 0) && \valid[b] == 1) && \valid[0] == 0) && #NULL == 0) && 0 <= mask) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((0 <= i && size <= 2147483647) && i < 2147483647) && size <= i) && 0 <= i) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((size <= 2147483647 && i < 2147483647) && size <= i) && 1 <= i) && 0 <= i) || (((size <= 2147483647 && i == 0) && size <= i) && 0 <= i) RESULT: Ultimate proved your program to be correct! [2022-12-14 10:47:18,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21fdd6e-90b6-492a-8c07-eb8cc31f8974/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE