./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/large_const.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/large_const.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 142d17131671d2eab991ea08656e3b8bfe555dee984fe7672c9a027e971df0f8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:42:05,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:42:05,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:42:05,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:42:05,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:42:05,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:42:05,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:42:05,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:42:05,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:42:05,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:42:05,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:42:05,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:42:05,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:42:05,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:42:05,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:42:05,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:42:05,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:42:05,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:42:05,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:42:05,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:42:05,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:42:05,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:42:05,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:42:05,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:42:05,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:42:05,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:42:05,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:42:05,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:42:05,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:42:05,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:42:05,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:42:05,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:42:05,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:42:05,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:42:05,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:42:05,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:42:05,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:42:05,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:42:05,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:42:05,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:42:05,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:42:05,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:42:06,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:42:06,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:42:06,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:42:06,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:42:06,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:42:06,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:42:06,026 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:42:06,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:42:06,027 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:42:06,027 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:42:06,028 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:42:06,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:42:06,028 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:42:06,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:42:06,029 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:42:06,029 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:42:06,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:42:06,030 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:42:06,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:42:06,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:42:06,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:42:06,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:42:06,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:42:06,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:42:06,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:42:06,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:42:06,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:42:06,033 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:42:06,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:42:06,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:42:06,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:42:06,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:42:06,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:42:06,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:42:06,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:42:06,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:42:06,036 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:42:06,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:42:06,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:42:06,036 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:42:06,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:42:06,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:42:06,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:42:06,037 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_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 142d17131671d2eab991ea08656e3b8bfe555dee984fe7672c9a027e971df0f8 [2022-11-22 02:42:06,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:42:06,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:42:06,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:42:06,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:42:06,417 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:42:06,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loop-invgen/large_const.i [2022-11-22 02:42:09,793 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:42:10,045 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:42:10,046 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/sv-benchmarks/c/loop-invgen/large_const.i [2022-11-22 02:42:10,053 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/data/7b7d52bb8/b679e8f504354280bb9910bb2e388f9c/FLAGf4a6f961f [2022-11-22 02:42:10,070 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/data/7b7d52bb8/b679e8f504354280bb9910bb2e388f9c [2022-11-22 02:42:10,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:42:10,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:42:10,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:42:10,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:42:10,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:42:10,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ee65d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10, skipping insertion in model container [2022-11-22 02:42:10,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:42:10,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:42:10,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/sv-benchmarks/c/loop-invgen/large_const.i[893,906] [2022-11-22 02:42:10,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:42:10,356 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:42:10,381 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/sv-benchmarks/c/loop-invgen/large_const.i[893,906] [2022-11-22 02:42:10,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:42:10,417 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:42:10,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10 WrapperNode [2022-11-22 02:42:10,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:42:10,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:42:10,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:42:10,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:42:10,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,467 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2022-11-22 02:42:10,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:42:10,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:42:10,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:42:10,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:42:10,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,491 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:42:10,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:42:10,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:42:10,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:42:10,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:42:10,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:10,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:42:10,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:42:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:42:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:42:10,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:42:10,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:42:10,699 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:42:10,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:42:10,972 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:42:11,010 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:42:11,010 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:42:11,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:11 BoogieIcfgContainer [2022-11-22 02:42:11,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:42:11,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:42:11,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:42:11,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:42:11,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:42:10" (1/3) ... [2022-11-22 02:42:11,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb3f20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:42:11, skipping insertion in model container [2022-11-22 02:42:11,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (2/3) ... [2022-11-22 02:42:11,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb3f20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:42:11, skipping insertion in model container [2022-11-22 02:42:11,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:11" (3/3) ... [2022-11-22 02:42:11,039 INFO L112 eAbstractionObserver]: Analyzing ICFG large_const.i [2022-11-22 02:42:11,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:42:11,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-22 02:42:11,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:42:11,129 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;@611b4396, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:42:11,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-22 02:42:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 20 states have (on average 1.9) internal successors, (38), 32 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) [2022-11-22 02:42:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:42:11,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:11,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:42:11,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 3552369, now seen corresponding path program 1 times [2022-11-22 02:42:11,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:11,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848132248] [2022-11-22 02:42:11,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:11,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:11,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848132248] [2022-11-22 02:42:11,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848132248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:11,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:11,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769426319] [2022-11-22 02:42:11,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:11,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:11,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:11,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:11,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:11,563 INFO L87 Difference]: Start difference. First operand has 33 states, 20 states have (on average 1.9) internal successors, (38), 32 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) 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) [2022-11-22 02:42:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:11,661 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-22 02:42:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:11,664 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 [2022-11-22 02:42:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:11,673 INFO L225 Difference]: With dead ends: 49 [2022-11-22 02:42:11,674 INFO L226 Difference]: Without dead ends: 43 [2022-11-22 02:42:11,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:42:11,681 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 15 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:11,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 88 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:11,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-22 02:42:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2022-11-22 02:42:11,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 33 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) [2022-11-22 02:42:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-11-22 02:42:11,753 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 4 [2022-11-22 02:42:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:11,755 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-11-22 02:42:11,756 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) [2022-11-22 02:42:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-11-22 02:42:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:42:11,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:11,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:42:11,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:42:11,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:11,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash 110200794, now seen corresponding path program 1 times [2022-11-22 02:42:11,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:11,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771134729] [2022-11-22 02:42:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:11,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:11,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:11,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771134729] [2022-11-22 02:42:11,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771134729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:11,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:11,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:11,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270801511] [2022-11-22 02:42:11,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:11,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:11,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:11,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:11,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:11,941 INFO L87 Difference]: Start difference. First operand 34 states and 38 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) [2022-11-22 02:42:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,015 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-22 02:42:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:12,016 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 [2022-11-22 02:42:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,017 INFO L225 Difference]: With dead ends: 39 [2022-11-22 02:42:12,017 INFO L226 Difference]: Without dead ends: 37 [2022-11-22 02:42:12,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:42:12,019 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 86 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-22 02:42:12,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-22 02:42:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.64) internal successors, (41), 36 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) [2022-11-22 02:42:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-22 02:42:12,027 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 5 [2022-11-22 02:42:12,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,028 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-22 02:42:12,028 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) [2022-11-22 02:42:12,029 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-22 02:42:12,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:42:12,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:12,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:12,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:42:12,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:12,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:12,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1471216004, now seen corresponding path program 1 times [2022-11-22 02:42:12,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:12,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57644823] [2022-11-22 02:42:12,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:12,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:12,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:12,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57644823] [2022-11-22 02:42:12,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57644823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:12,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:12,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:12,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302083119] [2022-11-22 02:42:12,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:12,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:12,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:12,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,140 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,219 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2022-11-22 02:42:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:12,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 02:42:12,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,222 INFO L225 Difference]: With dead ends: 64 [2022-11-22 02:42:12,223 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 02:42:12,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,225 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:12,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 02:42:12,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 37. [2022-11-22 02:42:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.6) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-11-22 02:42:12,234 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 7 [2022-11-22 02:42:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,235 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-11-22 02:42:12,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-11-22 02:42:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:42:12,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:12,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:12,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:42:12,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:12,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -666098632, now seen corresponding path program 1 times [2022-11-22 02:42:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:12,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140363516] [2022-11-22 02:42:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:12,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:12,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:12,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140363516] [2022-11-22 02:42:12,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140363516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:12,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:12,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:42:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952159326] [2022-11-22 02:42:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:12,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,333 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,387 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2022-11-22 02:42:12,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:12,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-22 02:42:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,389 INFO L225 Difference]: With dead ends: 52 [2022-11-22 02:42:12,389 INFO L226 Difference]: Without dead ends: 51 [2022-11-22 02:42:12,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,391 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 63 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 35 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:12,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-22 02:42:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2022-11-22 02:42:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-11-22 02:42:12,399 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 8 [2022-11-22 02:42:12,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,400 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-11-22 02:42:12,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,400 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-11-22 02:42:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:42:12,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:12,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:12,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:42:12,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 825784940, now seen corresponding path program 1 times [2022-11-22 02:42:12,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:12,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428637456] [2022-11-22 02:42:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:12,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:12,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428637456] [2022-11-22 02:42:12,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428637456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:12,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:12,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:42:12,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254869115] [2022-11-22 02:42:12,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:12,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:12,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:12,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,519 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,573 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-11-22 02:42:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:12,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:42:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,575 INFO L225 Difference]: With dead ends: 51 [2022-11-22 02:42:12,575 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 02:42:12,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,577 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 60 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 36 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 02:42:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2022-11-22 02:42:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-22 02:42:12,597 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 9 [2022-11-22 02:42:12,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,600 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-22 02:42:12,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-22 02:42:12,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:42:12,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:12,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:12,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:42:12,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:12,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:12,610 INFO L85 PathProgramCache]: Analyzing trace with hash 825785132, now seen corresponding path program 1 times [2022-11-22 02:42:12,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:12,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066737956] [2022-11-22 02:42:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:12,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:12,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:12,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066737956] [2022-11-22 02:42:12,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066737956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:12,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:12,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:42:12,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615879617] [2022-11-22 02:42:12,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:12,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:12,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,724 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,773 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-11-22 02:42:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:12,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:42:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,775 INFO L225 Difference]: With dead ends: 50 [2022-11-22 02:42:12,775 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 02:42:12,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,777 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 37 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 02:42:12,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-11-22 02:42:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-22 02:42:12,785 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 9 [2022-11-22 02:42:12,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,786 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-22 02:42:12,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-22 02:42:12,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:42:12,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:12,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:12,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:42:12,788 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:12,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash 825778950, now seen corresponding path program 1 times [2022-11-22 02:42:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:12,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088648497] [2022-11-22 02:42:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:12,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:12,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:12,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088648497] [2022-11-22 02:42:12,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088648497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:12,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:12,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:42:12,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283382809] [2022-11-22 02:42:12,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:12,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:12,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:12,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:12,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,856 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,908 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-22 02:42:12,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:12,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:42:12,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,910 INFO L225 Difference]: With dead ends: 49 [2022-11-22 02:42:12,910 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 02:42:12,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,914 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 56 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 37 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:12,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 02:42:12,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-22 02:42:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.53125) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-22 02:42:12,929 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 9 [2022-11-22 02:42:12,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,930 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-22 02:42:12,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:12,931 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-22 02:42:12,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:42:12,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:12,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:12,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:42:12,934 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:12,935 INFO L85 PathProgramCache]: Analyzing trace with hash -170470565, now seen corresponding path program 1 times [2022-11-22 02:42:12,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:12,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028957073] [2022-11-22 02:42:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:12,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:13,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:13,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028957073] [2022-11-22 02:42:13,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028957073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:13,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:13,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:42:13,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782006177] [2022-11-22 02:42:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:13,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:13,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:13,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:13,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:13,045 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:13,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:13,090 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-11-22 02:42:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:13,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:42:13,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:13,092 INFO L225 Difference]: With dead ends: 48 [2022-11-22 02:42:13,092 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 02:42:13,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:13,094 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 53 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:13,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 38 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 02:42:13,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-11-22 02:42:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 44 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-11-22 02:42:13,101 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 10 [2022-11-22 02:42:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:13,101 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-11-22 02:42:13,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-11-22 02:42:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:42:13,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:13,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:13,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:42:13,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash -170464607, now seen corresponding path program 1 times [2022-11-22 02:42:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:13,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331540777] [2022-11-22 02:42:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:13,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:13,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:13,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331540777] [2022-11-22 02:42:13,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331540777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:13,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:13,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:42:13,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646297463] [2022-11-22 02:42:13,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:13,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:13,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:13,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:13,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:13,160 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:13,201 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-11-22 02:42:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:13,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:42:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:13,202 INFO L225 Difference]: With dead ends: 47 [2022-11-22 02:42:13,203 INFO L226 Difference]: Without dead ends: 46 [2022-11-22 02:42:13,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:13,204 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:13,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 39 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-22 02:42:13,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-22 02:42:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.5) internal successors, (51), 45 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:13,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-22 02:42:13,211 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 10 [2022-11-22 02:42:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:13,211 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-22 02:42:13,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-22 02:42:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:42:13,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:13,213 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:13,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:42:13,214 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:13,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:13,214 INFO L85 PathProgramCache]: Analyzing trace with hash -995377336, now seen corresponding path program 1 times [2022-11-22 02:42:13,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:13,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278269397] [2022-11-22 02:42:13,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:13,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:13,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278269397] [2022-11-22 02:42:13,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278269397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:13,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832344341] [2022-11-22 02:42:13,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:13,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:13,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:13,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:13,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:42:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:13,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:13,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:13,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:42:13,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832344341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:13,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:42:13,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-11-22 02:42:13,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374733905] [2022-11-22 02:42:13,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:13,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:42:13,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:42:13,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:42:13,470 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) 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) [2022-11-22 02:42:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:13,501 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-11-22 02:42:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:42:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) 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 [2022-11-22 02:42:13,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:13,503 INFO L225 Difference]: With dead ends: 59 [2022-11-22 02:42:13,503 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 02:42:13,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:42:13,504 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:13,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 02:42:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 02:42:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 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) [2022-11-22 02:42:13,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-11-22 02:42:13,509 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 11 [2022-11-22 02:42:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:13,510 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-11-22 02:42:13,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) 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) [2022-11-22 02:42:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-11-22 02:42:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:42:13,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:13,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:13,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:13,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:42:13,728 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash -757663675, now seen corresponding path program 1 times [2022-11-22 02:42:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:13,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635676193] [2022-11-22 02:42:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:13,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:13,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:13,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635676193] [2022-11-22 02:42:13,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635676193] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:13,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280494615] [2022-11-22 02:42:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:13,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:13,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:13,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:13,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:42:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:13,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:13,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:13,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:14,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280494615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:14,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [609090265] [2022-11-22 02:42:14,114 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:42:14,114 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:42:14,122 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:42:14,129 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:42:14,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:42:14,751 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:42:17,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [609090265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:17,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:42:17,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 18 [2022-11-22 02:42:17,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618543669] [2022-11-22 02:42:17,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:17,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:42:17,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:42:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:42:17,136 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:17,345 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-22 02:42:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:42:17,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 02:42:17,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:17,350 INFO L225 Difference]: With dead ends: 35 [2022-11-22 02:42:17,350 INFO L226 Difference]: Without dead ends: 33 [2022-11-22 02:42:17,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:42:17,352 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:17,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 22 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:42:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-22 02:42:17,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-22 02:42:17,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.206896551724138) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:17,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-22 02:42:17,362 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 14 [2022-11-22 02:42:17,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:17,362 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-22 02:42:17,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-22 02:42:17,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:42:17,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:17,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:17,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:17,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:17,570 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:17,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash -255167216, now seen corresponding path program 1 times [2022-11-22 02:42:17,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:17,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861564056] [2022-11-22 02:42:17,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:17,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:17,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:17,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861564056] [2022-11-22 02:42:17,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861564056] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:17,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589775532] [2022-11-22 02:42:17,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:17,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:17,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:17,669 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:17,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:42:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:17,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:17,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:17,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:17,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589775532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:17,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [86135482] [2022-11-22 02:42:17,874 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 02:42:17,874 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:42:17,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:42:17,875 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:42:17,875 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:42:18,173 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:42:20,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [86135482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:20,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:42:20,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-11-22 02:42:20,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100500111] [2022-11-22 02:42:20,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:20,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:42:20,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:20,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:42:20,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:42:20,321 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:20,566 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-11-22 02:42:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:42:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 02:42:20,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:20,567 INFO L225 Difference]: With dead ends: 41 [2022-11-22 02:42:20,567 INFO L226 Difference]: Without dead ends: 39 [2022-11-22 02:42:20,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:42:20,568 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:20,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 35 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:42:20,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-22 02:42:20,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2022-11-22 02:42:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.206896551724138) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-22 02:42:20,581 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 15 [2022-11-22 02:42:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:20,581 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-22 02:42:20,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-22 02:42:20,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:42:20,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:20,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:20,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:20,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 02:42:20,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1481377398, now seen corresponding path program 1 times [2022-11-22 02:42:20,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:20,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750632566] [2022-11-22 02:42:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:20,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:20,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:20,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750632566] [2022-11-22 02:42:20,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750632566] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:20,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194687095] [2022-11-22 02:42:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:20,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:20,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:20,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:20,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:42:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:20,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:20,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:21,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:21,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194687095] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:21,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1308662052] [2022-11-22 02:42:21,082 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 02:42:21,083 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:42:21,083 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:42:21,083 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:42:21,083 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:42:21,371 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:42:23,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1308662052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:23,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:42:23,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-11-22 02:42:23,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634311326] [2022-11-22 02:42:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:23,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:42:23,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:42:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:42:23,682 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:23,930 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-22 02:42:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:42:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 02:42:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:23,932 INFO L225 Difference]: With dead ends: 37 [2022-11-22 02:42:23,932 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 02:42:23,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:42:23,934 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 43 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:23,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 29 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:42:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 02:42:23,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2022-11-22 02:42:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.24) internal successors, (31), 28 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) [2022-11-22 02:42:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-11-22 02:42:23,943 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 15 [2022-11-22 02:42:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:23,944 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-11-22 02:42:23,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-11-22 02:42:23,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 02:42:23,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:23,945 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:23,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:24,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 02:42:24,153 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:24,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1505292811, now seen corresponding path program 1 times [2022-11-22 02:42:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:24,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606386540] [2022-11-22 02:42:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:24,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:24,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606386540] [2022-11-22 02:42:24,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606386540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:24,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607686309] [2022-11-22 02:42:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:24,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:24,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:24,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:24,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:42:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:24,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:24,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:24,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:42:24,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:42:24,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607686309] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:24,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [512522199] [2022-11-22 02:42:24,418 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 02:42:24,418 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:42:24,418 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:42:24,418 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:42:24,418 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:42:24,927 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:42:26,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [512522199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:26,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:42:26,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 5, 5] total 23 [2022-11-22 02:42:26,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273006350] [2022-11-22 02:42:26,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:26,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:42:26,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:26,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:42:26,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:42:26,827 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:27,584 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2022-11-22 02:42:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:42:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 02:42:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:27,585 INFO L225 Difference]: With dead ends: 44 [2022-11-22 02:42:27,585 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 02:42:27,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2022-11-22 02:42:27,587 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:27,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 30 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:42:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 02:42:27,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 02:42:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-22 02:42:27,593 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 17 [2022-11-22 02:42:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:27,593 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-22 02:42:27,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-11-22 02:42:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:42:27,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:27,594 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:27,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 02:42:27,800 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:27,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash 405690698, now seen corresponding path program 1 times [2022-11-22 02:42:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:27,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252307450] [2022-11-22 02:42:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:27,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252307450] [2022-11-22 02:42:27,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252307450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:27,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982116206] [2022-11-22 02:42:27,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:27,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:27,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:27,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:27,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:42:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:27,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:27,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:42:27,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:42:28,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982116206] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:28,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [297263620] [2022-11-22 02:42:28,063 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 02:42:28,063 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:42:28,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:42:28,064 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:42:28,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:42:28,549 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:42:30,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [297263620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:30,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:42:30,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 5, 5] total 24 [2022-11-22 02:42:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783996728] [2022-11-22 02:42:30,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:30,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:42:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:30,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:42:30,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-11-22 02:42:30,448 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:31,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:31,099 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2022-11-22 02:42:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:42:31,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 02:42:31,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:31,100 INFO L225 Difference]: With dead ends: 42 [2022-11-22 02:42:31,100 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 02:42:31,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2022-11-22 02:42:31,101 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:31,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 24 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 02:42:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-22 02:42:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-11-22 02:42:31,109 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 18 [2022-11-22 02:42:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:31,109 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-11-22 02:42:31,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-11-22 02:42:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:42:31,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:31,110 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:31,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:31,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 02:42:31,317 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-22 02:42:31,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash -924988784, now seen corresponding path program 1 times [2022-11-22 02:42:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:31,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061167777] [2022-11-22 02:42:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:31,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:31,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:31,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061167777] [2022-11-22 02:42:31,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061167777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:42:31,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591648938] [2022-11-22 02:42:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:31,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:31,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:31,413 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:31,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 02:42:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:31,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:42:31,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:42:31,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:42:31,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591648938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:31,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [648726019] [2022-11-22 02:42:31,606 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 02:42:31,606 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:42:31,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:42:31,606 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:42:31,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:42:32,083 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:42:34,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [648726019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:34,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:42:34,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 5, 5] total 24 [2022-11-22 02:42:34,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357584325] [2022-11-22 02:42:34,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:34,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:42:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:34,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:42:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-11-22 02:42:34,321 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:34,983 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-11-22 02:42:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:42:34,984 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 02:42:34,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:34,984 INFO L225 Difference]: With dead ends: 25 [2022-11-22 02:42:34,984 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:42:34,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2022-11-22 02:42:34,985 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:34,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:42:34,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:42:34,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:42:34,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-22 02:42:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:42:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:42:34,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:42:34,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-22 02:42:34,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-22 02:42:34,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-22 02:42:34,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-22 02:42:34,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-22 02:42:34,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-22 02:42:34,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-22 02:42:34,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-22 02:42:34,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-22 02:42:34,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-22 02:42:34,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-22 02:42:34,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-22 02:42:34,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:35,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 02:42:35,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:42:37,447 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-22 02:42:37,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-22 02:42:37,448 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-11-22 02:42:37,448 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2022-11-22 02:42:37,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-11-22 02:42:37,448 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 43) no Hoare annotation was computed. [2022-11-22 02:42:37,449 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-22 02:42:37,450 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 34 44) the Hoare annotation is: (let ((.cse24 (select |#memory_int| 1))) (let ((.cse3 (= |ULTIMATE.start_main_~v~0#1| 1)) (.cse0 (< 0 |ULTIMATE.start_main_~n~0#1|)) (.cse1 (= |ULTIMATE.start_main_#in~argv#1.offset| |ULTIMATE.start_main_~argv#1.offset|)) (.cse2 (= |ULTIMATE.start_main_~argc#1| |ULTIMATE.start_main_#in~argc#1|)) (.cse4 (= 2 (select |#length| 1))) (.cse5 (< |ULTIMATE.start_main_~n~0#1| 2)) (.cse6 (= |ULTIMATE.start_main_~i~0#1| 1)) (.cse7 (= 10000 |ULTIMATE.start_main_~c3~0#1|)) (.cse8 (= |ULTIMATE.start_main_#in~argv#1.base| |ULTIMATE.start_#in~argv#1.base|)) (.cse9 (= 9 (select |#length| 2))) (.cse10 (= |ULTIMATE.start_main_#in~argv#1.base| |ULTIMATE.start_main_~argv#1.base|)) (.cse11 (= |ULTIMATE.start_main_~c2~0#1| 2000)) (.cse12 (= (select |#valid| 1) 1)) (.cse13 (= |ULTIMATE.start_main_#in~argv#1.offset| |ULTIMATE.start_#in~argv#1.offset|)) (.cse14 (= |ULTIMATE.start_main_~c1~0#1| 4000)) (.cse15 (= |ULTIMATE.start_main_#in~argc#1| |ULTIMATE.start_#in~argc#1|)) (.cse16 (= (select |#valid| 0) 0)) (.cse23 (= |ULTIMATE.start_main_~v~0#1| 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse19 (= (select .cse24 0) 48)) (.cse20 (= (select .cse24 1) 0)) (.cse21 (< 0 |#StackHeapBarrier|)) (.cse22 (= |#NULL.base| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~c2~0#1| |ULTIMATE.start_main_~k~0#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22) (and .cse0 (= |ULTIMATE.start_main_~c3~0#1| |ULTIMATE.start_main_~k~0#1|) .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (not .cse23) .cse13 (not .cse3) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (<= 0 |ULTIMATE.start_main_~v~0#1|) .cse20 (<= |ULTIMATE.start_main_~v~0#1| 2147483647) .cse21 .cse22) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse4 .cse7 .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~k~0#1| 0) (< |ULTIMATE.start_main_~n~0#1| 10) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (<= 0 |ULTIMATE.start_main_~n~0#1|) .cse20 .cse21 .cse22) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_main_~c1~0#1| |ULTIMATE.start_main_~k~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse23 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22)))) [2022-11-22 02:42:37,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 02:42:37,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:42:37,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-22 02:42:37,450 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-11-22 02:42:37,451 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2022-11-22 02:42:37,451 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2022-11-22 02:42:37,451 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-22 02:42:37,451 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-11-22 02:42:37,451 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-11-22 02:42:37,452 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 02:42:37,452 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:42:37,452 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-11-22 02:42:37,452 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 50) the Hoare annotation is: (or (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~j~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 1)) (= |ULTIMATE.start_main_#in~argv#1.offset| |ULTIMATE.start_main_~argv#1.offset|) (= |ULTIMATE.start_main_~argc#1| |ULTIMATE.start_main_#in~argc#1|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (= 2 (select |#length| 1)) (= 10000 |ULTIMATE.start_main_~c3~0#1|) (= |ULTIMATE.start_main_#in~argv#1.base| |ULTIMATE.start_#in~argv#1.base|) (= 9 (select |#length| 2)) (= |ULTIMATE.start_main_#in~argv#1.base| |ULTIMATE.start_main_~argv#1.base|) (= |ULTIMATE.start_main_~c2~0#1| 2000) (<= |ULTIMATE.start_main_~k~0#1| 10000) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_#in~argv#1.offset| |ULTIMATE.start_#in~argv#1.offset|) (= |ULTIMATE.start_main_~c1~0#1| 4000) (= |ULTIMATE.start_main_#in~argc#1| |ULTIMATE.start_#in~argc#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~n~0#1| 1) (<= 0 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (and (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~j~0#1| 0))) [2022-11-22 02:42:37,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2022-11-22 02:42:37,453 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 43) no Hoare annotation was computed. [2022-11-22 02:42:37,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-11-22 02:42:37,453 INFO L902 garLoopResultBuilder]: At program point L51(lines 24 52) the Hoare annotation is: true [2022-11-22 02:42:37,453 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-22 02:42:37,454 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-22 02:42:37,458 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:37,461 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:42:37,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:42:37 BoogieIcfgContainer [2022-11-22 02:42:37,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:42:37,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:42:37,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:42:37,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:42:37,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:11" (3/4) ... [2022-11-22 02:42:37,517 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:42:37,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-22 02:42:37,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-22 02:42:37,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:42:37,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:42:37,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:42:37,566 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((0 < n && c2 == k) && argv == argv) && argc == \old(argc)) && v == 1) && 2 == unknown-#length-unknown[1]) && n < 2) && i == 1) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((0 < n && c3 == k) && argv == argv) && argc == \old(argc)) && 2 == unknown-#length-unknown[1]) && n < 2) && i == 1) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && \valid[1] == 1) && !(v == 0)) && argv == argv) && !(v == 1)) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= v) && unknown-#memory_int-unknown[1][1] == 0) && v <= 2147483647) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((((((i == 0 && argv == argv) && argc == \old(argc)) && 2 == unknown-#length-unknown[1]) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && k == 0) && n < 10) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= n) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((0 < n && argv == argv) && argc == \old(argc)) && 2 == unknown-#length-unknown[1]) && n < 2) && i == 1) && 10000 == c3) && c1 == k) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && v == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-22 02:42:37,567 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((j <= 1 && 0 <= k + 1) && argv == argv) && argc == \old(argc)) && 1 <= i) && 2 == unknown-#length-unknown[1]) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && k <= 10000) && 0 <= j) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && n <= 1) && 0 <= n) && i <= 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (k == 0 && j == 0) [2022-11-22 02:42:37,580 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:42:37,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:42:37,580 INFO L158 Benchmark]: Toolchain (without parser) took 27505.48ms. Allocated memory was 172.0MB in the beginning and 373.3MB in the end (delta: 201.3MB). Free memory was 127.4MB in the beginning and 148.8MB in the end (delta: -21.4MB). Peak memory consumption was 182.7MB. Max. memory is 16.1GB. [2022-11-22 02:42:37,581 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 172.0MB. Free memory was 112.2MB in the beginning and 112.0MB in the end (delta: 157.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:42:37,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.62ms. Allocated memory is still 172.0MB. Free memory was 127.4MB in the beginning and 116.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:42:37,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.32ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:42:37,582 INFO L158 Benchmark]: Boogie Preprocessor took 25.69ms. Allocated memory is still 172.0MB. Free memory was 115.4MB in the beginning and 114.4MB in the end (delta: 970.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:42:37,582 INFO L158 Benchmark]: RCFGBuilder took 519.61ms. Allocated memory is still 172.0MB. Free memory was 114.4MB in the beginning and 101.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 02:42:37,583 INFO L158 Benchmark]: TraceAbstraction took 26495.07ms. Allocated memory was 172.0MB in the beginning and 373.3MB in the end (delta: 201.3MB). Free memory was 100.7MB in the beginning and 151.9MB in the end (delta: -51.2MB). Peak memory consumption was 182.7MB. Max. memory is 16.1GB. [2022-11-22 02:42:37,583 INFO L158 Benchmark]: Witness Printer took 66.80ms. Allocated memory is still 373.3MB. Free memory was 151.9MB in the beginning and 148.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:42:37,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 172.0MB. Free memory was 112.2MB in the beginning and 112.0MB in the end (delta: 157.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.62ms. Allocated memory is still 172.0MB. Free memory was 127.4MB in the beginning and 116.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.32ms. Allocated memory is still 172.0MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.69ms. Allocated memory is still 172.0MB. Free memory was 115.4MB in the beginning and 114.4MB in the end (delta: 970.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.61ms. Allocated memory is still 172.0MB. Free memory was 114.4MB in the beginning and 101.3MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 26495.07ms. Allocated memory was 172.0MB in the beginning and 373.3MB in the end (delta: 201.3MB). Free memory was 100.7MB in the beginning and 151.9MB in the end (delta: -51.2MB). Peak memory consumption was 182.7MB. Max. memory is 16.1GB. * Witness Printer took 66.80ms. Allocated memory is still 373.3MB. Free memory was 151.9MB in the beginning and 148.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: 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, 33 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 26.4s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 630 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 630 mSDsluCounter, 625 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 373 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 995 IncrementalHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 252 mSDtfsCounter, 995 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 171 SyntacticMatches, 27 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=9, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 67 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 484 HoareAnnotationTreeSize, 3 FomulaSimplifications, 502 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 7549 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 1353 SizeOfPredicates, 15 NumberOfNonLiveVariables, 612 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 29 InterpolantComputations, 10 PerfectInterpolantSequences, 14/40 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: 2.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 91, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 163, TOOLS_POST_TIME: 2.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 163, TOOLS_QUANTIFIERELIM_TIME: 2.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 287, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 15, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 91, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 9, LOOP_SUMMARIZER_CACHE_MISSES: 9, LOOP_SUMMARIZER_OVERALL_TIME: 0.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, 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: 1361, DAG_COMPRESSION_RETAINED_NODES: 296, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((0 < n && c2 == k) && argv == argv) && argc == \old(argc)) && v == 1) && 2 == unknown-#length-unknown[1]) && n < 2) && i == 1) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((0 < n && c3 == k) && argv == argv) && argc == \old(argc)) && 2 == unknown-#length-unknown[1]) && n < 2) && i == 1) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && \valid[1] == 1) && !(v == 0)) && argv == argv) && !(v == 1)) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= v) && unknown-#memory_int-unknown[1][1] == 0) && v <= 2147483647) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((((((i == 0 && argv == argv) && argc == \old(argc)) && 2 == unknown-#length-unknown[1]) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && k == 0) && n < 10) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= n) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((0 < n && argv == argv) && argc == \old(argc)) && 2 == unknown-#length-unknown[1]) && n < 2) && i == 1) && 10000 == c3) && c1 == k) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && v == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((j <= 1 && 0 <= k + 1) && argv == argv) && argc == \old(argc)) && 1 <= i) && 2 == unknown-#length-unknown[1]) && 10000 == c3) && argv == argv) && 9 == unknown-#length-unknown[2]) && argv == argv) && c2 == 2000) && k <= 10000) && 0 <= j) && \valid[1] == 1) && argv == argv) && c1 == 4000) && \old(argc) == \old(argc)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && n <= 1) && 0 <= n) && i <= 1) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (k == 0 && j == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 02:42:37,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f209822d-ce40-4ee7-a3f0-99d0917eaaf3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE