./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/rewnifrev2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/rewnifrev2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur --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 a70897b8f9d01ade64d517ee2bf20dd64d1adb0a94ea95e1a8b2431f33b62533 --- 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-38b53e6 [2022-11-26 00:19:10,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:19:10,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:19:10,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:19:10,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:19:10,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:19:10,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:19:10,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:19:10,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:19:10,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:19:10,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:19:10,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:19:10,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:19:10,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:19:10,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:19:10,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:19:10,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:19:10,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:19:10,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:19:10,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:19:10,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:19:10,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:19:10,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:19:10,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:19:10,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:19:10,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:19:10,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:19:10,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:19:10,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:19:10,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:19:10,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:19:10,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:19:10,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:19:10,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:19:10,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:19:10,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:19:10,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:19:10,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:19:10,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:19:10,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:19:10,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:19:10,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:19:10,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:19:10,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:19:10,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:19:10,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:19:10,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:19:10,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:19:10,186 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:19:10,186 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:19:10,186 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:19:10,187 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:19:10,188 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:19:10,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:19:10,188 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:19:10,188 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:19:10,188 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:19:10,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:19:10,189 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:19:10,189 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:19:10,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:19:10,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:19:10,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:19:10,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:19:10,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:19:10,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:19:10,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:19:10,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:19:10,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:19:10,192 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:19:10,192 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:19:10,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:19:10,192 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:19:10,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:19:10,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:19:10,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:19:10,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:10,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:19:10,194 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:19:10,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:19:10,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:19:10,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:19:10,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:19:10,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:19:10,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:19:10,195 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_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70897b8f9d01ade64d517ee2bf20dd64d1adb0a94ea95e1a8b2431f33b62533 [2022-11-26 00:19:10,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:19:10,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:19:10,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:19:10,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:19:10,469 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:19:10,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-tiling/rewnifrev2.c [2022-11-26 00:19:13,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:19:13,726 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:19:13,727 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/sv-benchmarks/c/array-tiling/rewnifrev2.c [2022-11-26 00:19:13,733 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/data/15826f053/724eaf99afa740a0952e5d00eaa9c912/FLAG5ffd9cbd3 [2022-11-26 00:19:13,748 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/data/15826f053/724eaf99afa740a0952e5d00eaa9c912 [2022-11-26 00:19:13,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:19:13,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:19:13,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:13,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:19:13,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:19:13,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:13" (1/1) ... [2022-11-26 00:19:13,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3614c258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:13, skipping insertion in model container [2022-11-26 00:19:13,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:13" (1/1) ... [2022-11-26 00:19:13,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:19:13,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:19:13,961 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_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/sv-benchmarks/c/array-tiling/rewnifrev2.c[401,414] [2022-11-26 00:19:13,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:13,984 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:19:13,994 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_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/sv-benchmarks/c/array-tiling/rewnifrev2.c[401,414] [2022-11-26 00:19:13,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:14,010 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:19:14,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14 WrapperNode [2022-11-26 00:19:14,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:14,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:14,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:19:14,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:19:14,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,039 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-11-26 00:19:14,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:14,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:19:14,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:19:14,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:19:14,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:19:14,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:19:14,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:19:14,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:19:14,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (1/1) ... [2022-11-26 00:19:14,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:14,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:14,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:19:14,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:19:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:19:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:19:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:19:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:19:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:19:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:19:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:19:14,198 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:19:14,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:19:14,356 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:19:14,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:19:14,403 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:19:14,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:14 BoogieIcfgContainer [2022-11-26 00:19:14,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:19:14,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:19:14,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:19:14,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:19:14,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:19:13" (1/3) ... [2022-11-26 00:19:14,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c77feec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:14, skipping insertion in model container [2022-11-26 00:19:14,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:14" (2/3) ... [2022-11-26 00:19:14,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c77feec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:14, skipping insertion in model container [2022-11-26 00:19:14,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:14" (3/3) ... [2022-11-26 00:19:14,430 INFO L112 eAbstractionObserver]: Analyzing ICFG rewnifrev2.c [2022-11-26 00:19:14,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:19:14,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-26 00:19:14,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:19:14,532 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;@2b9f54cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:19:14,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-26 00:19:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 25 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) [2022-11-26 00:19:14,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:19:14,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:14,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:19:14,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash 98183, now seen corresponding path program 1 times [2022-11-26 00:19:14,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:14,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643019788] [2022-11-26 00:19:14,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:14,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:14,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:14,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643019788] [2022-11-26 00:19:14,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643019788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:14,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:14,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:19:14,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087835363] [2022-11-26 00:19:14,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:14,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:19:14,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:14,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:19:14,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:14,909 INFO L87 Difference]: Start difference. First operand has 26 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 25 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-26 00:19:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:14,983 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-26 00:19:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:19:14,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-26 00:19:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:14,992 INFO L225 Difference]: With dead ends: 28 [2022-11-26 00:19:14,992 INFO L226 Difference]: Without dead ends: 23 [2022-11-26 00:19:14,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:14,999 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 18 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:15,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-26 00:19:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-26 00:19:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-26 00:19:15,035 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 3 [2022-11-26 00:19:15,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:15,035 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-26 00:19:15,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-26 00:19:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-26 00:19:15,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:19:15,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:15,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:19:15,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:19:15,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:15,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash 3043712, now seen corresponding path program 1 times [2022-11-26 00:19:15,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:15,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714565209] [2022-11-26 00:19:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:15,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:15,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714565209] [2022-11-26 00:19:15,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714565209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:15,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:15,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:19:15,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290847598] [2022-11-26 00:19:15,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:15,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:19:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:19:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:15,097 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-26 00:19:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:15,116 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-26 00:19:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:19:15,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-11-26 00:19:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:15,118 INFO L225 Difference]: With dead ends: 23 [2022-11-26 00:19:15,118 INFO L226 Difference]: Without dead ends: 22 [2022-11-26 00:19:15,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:15,120 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:15,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-26 00:19:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-26 00:19:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-26 00:19:15,125 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4 [2022-11-26 00:19:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:15,126 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-26 00:19:15,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-26 00:19:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-26 00:19:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:19:15,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:15,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:19:15,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:19:15,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:15,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1369958558, now seen corresponding path program 1 times [2022-11-26 00:19:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:15,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466720681] [2022-11-26 00:19:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:15,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:15,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:15,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466720681] [2022-11-26 00:19:15,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466720681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:15,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:15,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:19:15,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128289241] [2022-11-26 00:19:15,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:15,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:19:15,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:15,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:19:15,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:15,206 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:15,235 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-26 00:19:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:19:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:19:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:15,237 INFO L225 Difference]: With dead ends: 27 [2022-11-26 00:19:15,237 INFO L226 Difference]: Without dead ends: 25 [2022-11-26 00:19:15,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:19:15,239 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:15,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-26 00:19:15,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2022-11-26 00:19:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-11-26 00:19:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-26 00:19:15,249 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2022-11-26 00:19:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:15,250 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-26 00:19:15,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-26 00:19:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:19:15,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:15,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:15,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:19:15,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash 480957713, now seen corresponding path program 1 times [2022-11-26 00:19:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646176794] [2022-11-26 00:19:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:15,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:15,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:15,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646176794] [2022-11-26 00:19:15,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646176794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:15,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:15,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:19:15,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26809662] [2022-11-26 00:19:15,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:15,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:15,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:15,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:15,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:15,403 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:15,481 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-11-26 00:19:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:15,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:19:15,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:15,482 INFO L225 Difference]: With dead ends: 36 [2022-11-26 00:19:15,483 INFO L226 Difference]: Without dead ends: 34 [2022-11-26 00:19:15,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:19:15,484 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 16 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-26 00:19:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2022-11-26 00:19:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-26 00:19:15,491 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 7 [2022-11-26 00:19:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:15,491 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-26 00:19:15,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-26 00:19:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:19:15,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:15,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:15,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:19:15,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:15,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:15,494 INFO L85 PathProgramCache]: Analyzing trace with hash 481017299, now seen corresponding path program 1 times [2022-11-26 00:19:15,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:15,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694674907] [2022-11-26 00:19:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:15,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:15,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:15,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694674907] [2022-11-26 00:19:15,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694674907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:15,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:15,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:19:15,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695210877] [2022-11-26 00:19:15,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:15,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:15,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:15,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:15,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:15,614 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 4 states, 4 states have (on average 1.75) 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) [2022-11-26 00:19:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:15,655 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-26 00:19:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:15,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) 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 [2022-11-26 00:19:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:15,657 INFO L225 Difference]: With dead ends: 35 [2022-11-26 00:19:15,657 INFO L226 Difference]: Without dead ends: 30 [2022-11-26 00:19:15,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:19:15,659 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-26 00:19:15,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-11-26 00:19:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.368421052631579) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-11-26 00:19:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-26 00:19:15,666 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 7 [2022-11-26 00:19:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:15,667 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-26 00:19:15,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) 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) [2022-11-26 00:19:15,667 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-26 00:19:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:19:15,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:15,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:15,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:19:15,669 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:15,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:15,669 INFO L85 PathProgramCache]: Analyzing trace with hash 200382681, now seen corresponding path program 1 times [2022-11-26 00:19:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:15,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763001894] [2022-11-26 00:19:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:15,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:15,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:15,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763001894] [2022-11-26 00:19:15,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763001894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:15,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:15,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:19:15,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357258974] [2022-11-26 00:19:15,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:15,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:15,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:15,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:15,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:15,753 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-11-26 00:19:15,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:15,800 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-11-26 00:19:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:15,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2022-11-26 00:19:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:15,804 INFO L225 Difference]: With dead ends: 30 [2022-11-26 00:19:15,804 INFO L226 Difference]: Without dead ends: 29 [2022-11-26 00:19:15,807 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 [2022-11-26 00:19:15,808 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-26 00:19:15,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2022-11-26 00:19:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-26 00:19:15,823 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 10 [2022-11-26 00:19:15,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:15,823 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-26 00:19:15,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-11-26 00:19:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-26 00:19:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:19:15,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:15,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:15,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:19:15,825 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:15,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:15,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1916895876, now seen corresponding path program 1 times [2022-11-26 00:19:15,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:15,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494589492] [2022-11-26 00:19:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:15,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:15,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494589492] [2022-11-26 00:19:15,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494589492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:15,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:15,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:19:15,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97126501] [2022-11-26 00:19:15,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:15,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:15,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:15,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:15,920 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:15,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:15,990 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-26 00:19:15,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:15,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:19:15,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:15,991 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:19:15,993 INFO L226 Difference]: Without dead ends: 26 [2022-11-26 00:19:15,994 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 [2022-11-26 00:19:15,995 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:15,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 25 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:16,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-26 00:19:16,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 17. [2022-11-26 00:19:16,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-11-26 00:19:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-26 00:19:16,003 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2022-11-26 00:19:16,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:16,004 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-26 00:19:16,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:16,004 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-26 00:19:16,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:19:16,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:16,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:16,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:19:16,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:16,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:16,006 INFO L85 PathProgramCache]: Analyzing trace with hash 359980623, now seen corresponding path program 1 times [2022-11-26 00:19:16,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:16,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338287684] [2022-11-26 00:19:16,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:16,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:16,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:16,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338287684] [2022-11-26 00:19:16,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338287684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:16,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:16,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:19:16,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440121990] [2022-11-26 00:19:16,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:16,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:16,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:16,080 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2022-11-26 00:19:16,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:16,114 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-26 00:19:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:16,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 [2022-11-26 00:19:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:16,115 INFO L225 Difference]: With dead ends: 22 [2022-11-26 00:19:16,116 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 00:19:16,116 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 [2022-11-26 00:19:16,117 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:16,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 26 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:16,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 00:19:16,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 00:19:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-11-26 00:19:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-26 00:19:16,122 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2022-11-26 00:19:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:16,122 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-26 00:19:16,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2022-11-26 00:19:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-26 00:19:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:19:16,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:16,124 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:16,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:19:16,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash -350510255, now seen corresponding path program 1 times [2022-11-26 00:19:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:16,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136214239] [2022-11-26 00:19:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:16,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:16,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:16,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136214239] [2022-11-26 00:19:16,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136214239] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:16,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947184686] [2022-11-26 00:19:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:16,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:16,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:16,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:16,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:19:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:16,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:19:16,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:16,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:16,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947184686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:16,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:19:16,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:19:16,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110684838] [2022-11-26 00:19:16,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:16,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:19:16,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:16,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:19:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:19:16,395 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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) [2022-11-26 00:19:16,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:16,457 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-26 00:19:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:19:16,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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 17 [2022-11-26 00:19:16,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:16,459 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:19:16,459 INFO L226 Difference]: Without dead ends: 19 [2022-11-26 00:19:16,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:19:16,463 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:16,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:16,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-26 00:19:16,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-26 00:19:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-11-26 00:19:16,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-26 00:19:16,474 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2022-11-26 00:19:16,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:16,474 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-26 00:19:16,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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) [2022-11-26 00:19:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-26 00:19:16,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:19:16,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:16,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:16,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:19:16,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:16,681 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:16,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2019084071, now seen corresponding path program 1 times [2022-11-26 00:19:16,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:16,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302317509] [2022-11-26 00:19:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:16,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:16,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:16,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302317509] [2022-11-26 00:19:16,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302317509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:16,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477838929] [2022-11-26 00:19:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:16,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:16,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:16,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:16,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:19:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:16,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:19:16,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:16,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:16,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477838929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:16,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1984695557] [2022-11-26 00:19:17,006 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-26 00:19:17,006 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:17,010 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:17,015 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:17,016 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:17,158 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-26 00:19:17,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-26 00:19:17,239 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-26 00:19:17,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-26 00:19:17,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-26 00:19:17,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2022-11-26 00:19:17,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2022-11-26 00:19:17,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,676 INFO L321 Elim1Store]: treesize reduction 120, result has 22.6 percent of original size [2022-11-26 00:19:17,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 282 treesize of output 287 [2022-11-26 00:19:17,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:17,983 INFO L321 Elim1Store]: treesize reduction 168, result has 16.8 percent of original size [2022-11-26 00:19:17,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 309 treesize of output 308 [2022-11-26 00:19:18,167 WARN L221 IntervalDomain]: Interval conversion did not stabilize in 9 iterations. Over-approximation may be very coarse. [2022-11-26 00:19:18,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-26 00:19:18,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2022-11-26 00:19:18,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-26 00:19:18,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:18,773 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-26 00:19:18,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 168 treesize of output 185 [2022-11-26 00:19:18,825 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:20,031 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '747#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (< 2147483646 |ULTIMATE.start_main_#t~post7#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:19:20,031 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:20,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:20,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-26 00:19:20,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381259716] [2022-11-26 00:19:20,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:20,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:19:20,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:20,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:19:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:19:20,033 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 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) [2022-11-26 00:19:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:20,167 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-26 00:19:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:19:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 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) Word has length 18 [2022-11-26 00:19:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:20,170 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:19:20,170 INFO L226 Difference]: Without dead ends: 28 [2022-11-26 00:19:20,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:19:20,171 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:20,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 45 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:20,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-26 00:19:20,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-26 00:19:20,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 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) [2022-11-26 00:19:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-11-26 00:19:20,176 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 18 [2022-11-26 00:19:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:20,176 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-11-26 00:19:20,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 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) [2022-11-26 00:19:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-11-26 00:19:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:19:20,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:20,177 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:20,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:20,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:19:20,387 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-26 00:19:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1133714025, now seen corresponding path program 2 times [2022-11-26 00:19:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:20,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64430940] [2022-11-26 00:19:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:20,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:20,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:20,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64430940] [2022-11-26 00:19:20,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64430940] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:20,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247060359] [2022-11-26 00:19:20,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:19:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:20,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:20,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:19:20,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:19:20,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:20,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:19:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-26 00:19:20,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-26 00:19:20,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247060359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:20,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2018340123] [2022-11-26 00:19:20,820 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-26 00:19:20,820 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:20,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:20,821 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:20,821 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:20,905 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-26 00:19:20,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-26 00:19:20,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-26 00:19:20,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-26 00:19:20,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2022-11-26 00:19:21,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2022-11-26 00:19:21,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,215 INFO L321 Elim1Store]: treesize reduction 118, result has 23.9 percent of original size [2022-11-26 00:19:21,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 282 treesize of output 289 [2022-11-26 00:19:21,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:21,625 INFO L321 Elim1Store]: treesize reduction 93, result has 17.7 percent of original size [2022-11-26 00:19:21,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 575 treesize of output 517 [2022-11-26 00:19:21,765 WARN L221 IntervalDomain]: Interval conversion did not stabilize in 9 iterations. Over-approximation may be very coarse. [2022-11-26 00:19:21,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-26 00:19:21,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2022-11-26 00:19:21,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-11-26 00:19:22,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:22,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:22,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:22,114 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-26 00:19:22,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 168 treesize of output 185 [2022-11-26 00:19:22,154 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:23,353 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1006#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (< 2147483646 |ULTIMATE.start_main_#t~post7#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:19:23,353 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:23,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:23,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 13 [2022-11-26 00:19:23,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426941597] [2022-11-26 00:19:23,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:23,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:23,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:23,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:23,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:19:23,355 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 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) [2022-11-26 00:19:23,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:23,605 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-26 00:19:23,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:19:23,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 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 27 [2022-11-26 00:19:23,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:23,606 INFO L225 Difference]: With dead ends: 31 [2022-11-26 00:19:23,606 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:19:23,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-11-26 00:19:23,608 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:23,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 21 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:23,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:19:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:19:23,609 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) [2022-11-26 00:19:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:19:23,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2022-11-26 00:19:23,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:23,611 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:19:23,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 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) [2022-11-26 00:19:23,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:19:23,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:19:23,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-26 00:19:23,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-26 00:19:23,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-26 00:19:23,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-26 00:19:23,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-26 00:19:23,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-26 00:19:23,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-26 00:19:23,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-26 00:19:23,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-26 00:19:23,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-26 00:19:23,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:23,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-26 00:19:23,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:19:23,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,984 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,984 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,984 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,984 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,984 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 34) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L899 garLoopResultBuilder]: For program point L24-5(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,985 INFO L902 garLoopResultBuilder]: At program point L20-1(lines 20 34) the Hoare annotation is: true [2022-11-26 00:19:23,986 INFO L899 garLoopResultBuilder]: For program point L24-6(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,986 INFO L895 garLoopResultBuilder]: At program point L24-7(lines 24 28) the Hoare annotation is: (and (<= 2 ~SIZE~0) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= ~SIZE~0 2147483647)) [2022-11-26 00:19:23,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-26 00:19:23,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:19:23,986 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-26 00:19:23,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-26 00:19:23,987 INFO L899 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2022-11-26 00:19:23,987 INFO L899 garLoopResultBuilder]: For program point L30-4(line 30) no Hoare annotation was computed. [2022-11-26 00:19:23,987 INFO L895 garLoopResultBuilder]: At program point L30-5(lines 30 33) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1))) [2022-11-26 00:19:23,987 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-26 00:19:23,991 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:23,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:19:24,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:19:24 BoogieIcfgContainer [2022-11-26 00:19:24,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:19:24,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:19:24,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:19:24,018 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:19:24,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:14" (3/4) ... [2022-11-26 00:19:24,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:19:24,034 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-26 00:19:24,034 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-26 00:19:24,035 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:19:24,035 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:19:24,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:19:24,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:19:24,080 INFO L158 Benchmark]: Toolchain (without parser) took 10328.17ms. Allocated memory was 151.0MB in the beginning and 243.3MB in the end (delta: 92.3MB). Free memory was 113.1MB in the beginning and 78.1MB in the end (delta: 35.0MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. [2022-11-26 00:19:24,084 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 151.0MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:19:24,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.88ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 102.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:19:24,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.70ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 100.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:19:24,086 INFO L158 Benchmark]: Boogie Preprocessor took 18.95ms. Allocated memory is still 151.0MB. Free memory was 100.9MB in the beginning and 99.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:19:24,086 INFO L158 Benchmark]: RCFGBuilder took 346.90ms. Allocated memory is still 151.0MB. Free memory was 99.7MB in the beginning and 86.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:19:24,086 INFO L158 Benchmark]: TraceAbstraction took 9593.01ms. Allocated memory was 151.0MB in the beginning and 243.3MB in the end (delta: 92.3MB). Free memory was 86.2MB in the beginning and 81.3MB in the end (delta: 5.0MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2022-11-26 00:19:24,087 INFO L158 Benchmark]: Witness Printer took 61.71ms. Allocated memory is still 243.3MB. Free memory was 81.3MB in the beginning and 78.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:19:24,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 151.0MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.88ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 102.5MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.70ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 100.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.95ms. Allocated memory is still 151.0MB. Free memory was 100.9MB in the beginning and 99.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 346.90ms. Allocated memory is still 151.0MB. Free memory was 99.7MB in the beginning and 86.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9593.01ms. Allocated memory was 151.0MB in the beginning and 243.3MB in the end (delta: 92.3MB). Free memory was 86.2MB in the beginning and 81.3MB in the end (delta: 5.0MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. * Witness Printer took 61.71ms. Allocated memory is still 243.3MB. Free memory was 81.3MB in the beginning and 78.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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, 26 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 233 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 115 mSDtfsCounter, 327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=10, InterpolantAutomatonStates: 59, 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, 11 MinimizatonAttempts, 33 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 32 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2712 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 186 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 SizeOfPredicates, 7 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 55/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((i == 0 && 2 <= SIZE) && SIZE <= 2147483647) || ((1 <= i && 2 <= SIZE) && SIZE <= 2147483647) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (2 <= SIZE && i <= 2147483646) && SIZE <= 2147483647 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-26 00:19:24,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3660a0ad-8b97-42d9-a0d8-d35dbfff35dc/bin/utaipan-ByfvJB40ur/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