./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/rew.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/rew.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4dbd52ad78119a422ea606f98f820bbe5495fb5a7cf8886c665da2d1f9b569e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:26:06,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:26:06,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:26:06,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:26:06,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:26:06,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:26:06,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:26:06,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:26:06,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:26:06,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:26:06,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:26:06,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:26:06,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:26:06,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:26:06,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:26:06,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:26:06,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:26:06,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:26:06,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:26:06,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:26:06,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:26:06,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:26:06,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:26:06,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:26:06,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:26:06,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:26:06,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:26:06,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:26:06,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:26:06,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:26:06,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:26:06,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:26:06,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:26:06,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:26:06,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:26:06,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:26:06,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:26:06,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:26:06,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:26:06,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:26:06,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:26:06,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 07:26:06,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:26:06,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:26:06,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:26:06,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:26:06,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:26:06,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:26:06,125 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:26:06,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:26:06,125 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:26:06,125 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:26:06,125 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:26:06,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:26:06,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:26:06,126 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:26:06,126 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:26:06,126 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:26:06,127 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:26:06,127 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:26:06,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:26:06,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:26:06,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:26:06,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:26:06,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:26:06,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:26:06,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:26:06,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:26:06,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:26:06,129 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:26:06,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:26:06,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:26:06,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:26:06,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:26:06,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:26:06,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:26:06,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:26:06,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:26:06,131 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:26:06,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:26:06,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:26:06,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:26:06,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:26:06,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:26:06,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:26:06,132 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_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4dbd52ad78119a422ea606f98f820bbe5495fb5a7cf8886c665da2d1f9b569e [2022-12-14 07:26:06,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:26:06,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:26:06,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:26:06,344 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:26:06,345 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:26:06,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-tiling/rew.c [2022-12-14 07:26:08,983 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:26:09,157 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:26:09,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/sv-benchmarks/c/array-tiling/rew.c [2022-12-14 07:26:09,162 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/data/690369e3a/45631176c34d4691934dcc7a344a958a/FLAG9d542feae [2022-12-14 07:26:09,174 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/data/690369e3a/45631176c34d4691934dcc7a344a958a [2022-12-14 07:26:09,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:26:09,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:26:09,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:26:09,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:26:09,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:26:09,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16641d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09, skipping insertion in model container [2022-12-14 07:26:09,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:26:09,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:26:09,303 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_c9094e40-1e24-42d4-87db-d19ef635391c/sv-benchmarks/c/array-tiling/rew.c[394,407] [2022-12-14 07:26:09,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:26:09,325 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:26:09,337 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_c9094e40-1e24-42d4-87db-d19ef635391c/sv-benchmarks/c/array-tiling/rew.c[394,407] [2022-12-14 07:26:09,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:26:09,351 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:26:09,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09 WrapperNode [2022-12-14 07:26:09,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:26:09,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:26:09,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:26:09,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:26:09,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,375 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-12-14 07:26:09,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:26:09,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:26:09,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:26:09,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:26:09,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:26:09,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:26:09,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:26:09,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:26:09,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (1/1) ... [2022-12-14 07:26:09,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:26:09,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:09,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:26:09,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:26:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:26:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:26:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:26:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:26:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:26:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:26:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:26:09,501 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:26:09,503 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:26:09,607 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:26:09,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:26:09,627 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 07:26:09,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:26:09 BoogieIcfgContainer [2022-12-14 07:26:09,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:26:09,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:26:09,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:26:09,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:26:09,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:26:09" (1/3) ... [2022-12-14 07:26:09,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266e4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:26:09, skipping insertion in model container [2022-12-14 07:26:09,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:09" (2/3) ... [2022-12-14 07:26:09,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266e4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:26:09, skipping insertion in model container [2022-12-14 07:26:09,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:26:09" (3/3) ... [2022-12-14 07:26:09,635 INFO L112 eAbstractionObserver]: Analyzing ICFG rew.c [2022-12-14 07:26:09,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:26:09,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 07:26:09,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:26:09,703 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;@4dc9039c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:26:09,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 07:26:09,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 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) [2022-12-14 07:26:09,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 07:26:09,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:09,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 07:26:09,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 3133277, now seen corresponding path program 1 times [2022-12-14 07:26:09,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:09,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905177712] [2022-12-14 07:26:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:09,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:09,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:09,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905177712] [2022-12-14 07:26:09,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905177712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:09,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:09,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:26:09,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693357871] [2022-12-14 07:26:09,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:09,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:26:09,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:26:09,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:09,901 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:09,968 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-12-14 07:26:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:26:09,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 07:26:09,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:09,979 INFO L225 Difference]: With dead ends: 46 [2022-12-14 07:26:09,979 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 07:26:09,982 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 [2022-12-14 07:26:09,985 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:09,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 21 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 07:26:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2022-12-14 07:26:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-12-14 07:26:10,011 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 4 [2022-12-14 07:26:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:10,011 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-12-14 07:26:10,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-12-14 07:26:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:26:10,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:10,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:26:10,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:26:10,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:10,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash 97198171, now seen corresponding path program 1 times [2022-12-14 07:26:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:10,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346722490] [2022-12-14 07:26:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:10,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:10,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346722490] [2022-12-14 07:26:10,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346722490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:10,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:10,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:26:10,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220095133] [2022-12-14 07:26:10,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:10,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:26:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:10,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:26:10,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:10,091 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:10,126 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-12-14 07:26:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:26:10,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 07:26:10,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:10,127 INFO L225 Difference]: With dead ends: 53 [2022-12-14 07:26:10,128 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 07:26:10,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:10,129 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:10,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:10,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 07:26:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-12-14 07:26:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-12-14 07:26:10,134 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2022-12-14 07:26:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:10,135 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-12-14 07:26:10,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-12-14 07:26:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:26:10,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:10,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:10,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:26:10,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:10,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:10,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1786188553, now seen corresponding path program 1 times [2022-12-14 07:26:10,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:10,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201987536] [2022-12-14 07:26:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:10,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:10,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201987536] [2022-12-14 07:26:10,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201987536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:10,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:10,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:26:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840336655] [2022-12-14 07:26:10,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:10,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:26:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:26:10,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:26:10,221 INFO L87 Difference]: Start difference. First operand 28 states and 30 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) [2022-12-14 07:26:10,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:10,268 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-12-14 07:26:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:26:10,268 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 [2022-12-14 07:26:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:10,269 INFO L225 Difference]: With dead ends: 38 [2022-12-14 07:26:10,269 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 07:26:10,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:26:10,271 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:10,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:10,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 07:26:10,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-12-14 07:26:10,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.434782608695652) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-12-14 07:26:10,275 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 10 [2022-12-14 07:26:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:10,275 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-12-14 07:26:10,276 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) [2022-12-14 07:26:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-12-14 07:26:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:26:10,276 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:10,276 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:10,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:26:10,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:10,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:10,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1993289397, now seen corresponding path program 1 times [2022-12-14 07:26:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:10,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232970848] [2022-12-14 07:26:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:10,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:10,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232970848] [2022-12-14 07:26:10,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232970848] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:26:10,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049757035] [2022-12-14 07:26:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:10,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:10,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:26:10,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:26:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:26:10,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:10,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:10,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049757035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:10,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:26:10,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-14 07:26:10,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205619216] [2022-12-14 07:26:10,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:10,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:26:10,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:26:10,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:26:10,454 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:10,494 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-12-14 07:26:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:26:10,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 07:26:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:10,495 INFO L225 Difference]: With dead ends: 36 [2022-12-14 07:26:10,495 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 07:26:10,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:26:10,496 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:10,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 07:26:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-12-14 07:26:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-12-14 07:26:10,499 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 13 [2022-12-14 07:26:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:10,499 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-12-14 07:26:10,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-12-14 07:26:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:26:10,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:10,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:10,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:26:10,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:10,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:10,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:10,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1662362579, now seen corresponding path program 1 times [2022-12-14 07:26:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:10,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091995032] [2022-12-14 07:26:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:26:10,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:10,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091995032] [2022-12-14 07:26:10,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091995032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:10,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:10,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:26:10,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144195242] [2022-12-14 07:26:10,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:10,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:26:10,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:10,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:26:10,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:26:10,848 INFO L87 Difference]: Start difference. First operand 28 states and 30 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) [2022-12-14 07:26:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:10,897 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-12-14 07:26:10,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:26:10,897 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 [2022-12-14 07:26:10,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:10,898 INFO L225 Difference]: With dead ends: 33 [2022-12-14 07:26:10,898 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 07:26:10,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:26:10,899 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:10,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:10,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 07:26:10,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-14 07:26:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-12-14 07:26:10,902 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 14 [2022-12-14 07:26:10,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:10,902 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-12-14 07:26:10,902 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) [2022-12-14 07:26:10,902 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-12-14 07:26:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:26:10,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:10,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:10,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:26:10,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:10,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1662429116, now seen corresponding path program 1 times [2022-12-14 07:26:10,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:10,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934580788] [2022-12-14 07:26:10,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:10,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:10,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934580788] [2022-12-14 07:26:10,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934580788] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:26:10,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132747254] [2022-12-14 07:26:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:10,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:10,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:10,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:26:10,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:26:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:10,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:26:10,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:11,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:26:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:11,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132747254] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:26:11,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [457908216] [2022-12-14 07:26:11,070 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 07:26:11,070 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:26:11,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:26:11,077 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:26:11,077 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:26:11,179 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 07:26:11,180 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 [2022-12-14 07:26:11,200 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 [2022-12-14 07:26:11,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-12-14 07:26:11,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 107 [2022-12-14 07:26:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:11,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:11,543 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-12-14 07:26:11,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 350 treesize of output 350 [2022-12-14 07:26:11,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:11,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:11,752 INFO L321 Elim1Store]: treesize reduction 176, result has 22.1 percent of original size [2022-12-14 07:26:11,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 32 case distinctions, treesize of input 367 treesize of output 376 [2022-12-14 07:26:12,030 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 16 treesize of output 12 [2022-12-14 07:26:12,040 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 28 treesize of output 27 [2022-12-14 07:26:12,068 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 16 treesize of output 12 [2022-12-14 07:26:12,079 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 28 treesize of output 27 [2022-12-14 07:26:12,144 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:26:12,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [457908216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:12,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:26:12,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 15 [2022-12-14 07:26:12,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598583927] [2022-12-14 07:26:12,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:12,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:26:12,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:12,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:26:12,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-12-14 07:26:12,783 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:13,917 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2022-12-14 07:26:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:26:13,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 07:26:13,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:13,919 INFO L225 Difference]: With dead ends: 72 [2022-12-14 07:26:13,919 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 07:26:13,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2022-12-14 07:26:13,920 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 42 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:13,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 29 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:26:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 07:26:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 35. [2022-12-14 07:26:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-12-14 07:26:13,924 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 14 [2022-12-14 07:26:13,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:13,924 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-12-14 07:26:13,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:13,925 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-12-14 07:26:13,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 07:26:13,925 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:13,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:13,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:26:14,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 07:26:14,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:14,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -598303497, now seen corresponding path program 1 times [2022-12-14 07:26:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:14,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315479600] [2022-12-14 07:26:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 07:26:14,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315479600] [2022-12-14 07:26:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315479600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:14,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:14,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:26:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038625181] [2022-12-14 07:26:14,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:14,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:26:14,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:14,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:26:14,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:26:14,187 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:14,218 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-12-14 07:26:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:26:14,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 07:26:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:14,219 INFO L225 Difference]: With dead ends: 35 [2022-12-14 07:26:14,219 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 07:26:14,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:26:14,220 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:14,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 07:26:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-14 07:26:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.2) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-12-14 07:26:14,225 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 18 [2022-12-14 07:26:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:14,225 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-12-14 07:26:14,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-12-14 07:26:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 07:26:14,226 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:14,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:14,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:26:14,226 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash 54842038, now seen corresponding path program 1 times [2022-12-14 07:26:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:14,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932267300] [2022-12-14 07:26:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:26:14,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:14,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932267300] [2022-12-14 07:26:14,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932267300] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:26:14,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457098325] [2022-12-14 07:26:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:14,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:14,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:14,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:26:14,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:26:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:14,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 07:26:14,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:14,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:26:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:14,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457098325] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:26:14,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [336923067] [2022-12-14 07:26:14,387 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 07:26:14,387 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:26:14,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:26:14,388 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:26:14,388 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:26:14,442 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 07:26:14,442 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 [2022-12-14 07:26:14,456 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 [2022-12-14 07:26:14,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-12-14 07:26:14,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:14,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:14,572 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 07:26:14,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 365 treesize of output 356 [2022-12-14 07:26:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:14,794 INFO L321 Elim1Store]: treesize reduction 129, result has 5.1 percent of original size [2022-12-14 07:26:14,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 357 treesize of output 351 [2022-12-14 07:26:14,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 07:26:14,911 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 16 treesize of output 12 [2022-12-14 07:26:14,932 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 111 treesize of output 110 [2022-12-14 07:26:14,983 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 16 treesize of output 12 [2022-12-14 07:26:15,010 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 111 treesize of output 110 [2022-12-14 07:26:15,059 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:26:15,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [336923067] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:15,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:26:15,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [2, 6, 6] total 19 [2022-12-14 07:26:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748925847] [2022-12-14 07:26:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:15,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 07:26:15,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:15,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 07:26:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-12-14 07:26:15,447 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:15,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:15,785 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-12-14 07:26:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 07:26:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 07:26:15,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:15,786 INFO L225 Difference]: With dead ends: 47 [2022-12-14 07:26:15,786 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 07:26:15,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2022-12-14 07:26:15,786 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:15,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 16 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:26:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 07:26:15,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2022-12-14 07:26:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-12-14 07:26:15,790 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2022-12-14 07:26:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:15,790 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-12-14 07:26:15,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-12-14 07:26:15,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 07:26:15,791 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:15,791 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:15,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:26:15,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:15,992 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:15,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:15,993 INFO L85 PathProgramCache]: Analyzing trace with hash -601090908, now seen corresponding path program 1 times [2022-12-14 07:26:15,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:15,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345017920] [2022-12-14 07:26:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:26:16,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:16,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345017920] [2022-12-14 07:26:16,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345017920] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:26:16,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569621225] [2022-12-14 07:26:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:16,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:16,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:26:16,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:26:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:16,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:26:16,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:26:16,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:16,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569621225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:16,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:26:16,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 07:26:16,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257586429] [2022-12-14 07:26:16,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:16,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:26:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:16,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:26:16,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:26:16,138 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) [2022-12-14 07:26:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:16,174 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-12-14 07:26:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:26:16,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) Word has length 24 [2022-12-14 07:26:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:16,175 INFO L225 Difference]: With dead ends: 32 [2022-12-14 07:26:16,175 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 07:26:16,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:26:16,175 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:16,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 14 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 07:26:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-12-14 07:26:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.12) 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) [2022-12-14 07:26:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-12-14 07:26:16,183 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 24 [2022-12-14 07:26:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:16,183 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-12-14 07:26:16,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) [2022-12-14 07:26:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 07:26:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 07:26:16,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:16,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:16,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 07:26:16,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:16,385 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 07:26:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1453948873, now seen corresponding path program 1 times [2022-12-14 07:26:16,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:26:16,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792755074] [2022-12-14 07:26:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:26:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:16,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:26:16,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:26:16,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792755074] [2022-12-14 07:26:16,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792755074] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:26:16,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249355569] [2022-12-14 07:26:16,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:16,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:26:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:16,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:26:16,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:26:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:16,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:26:16,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:26:16,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:26:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:26:16,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249355569] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:26:16,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [214064198] [2022-12-14 07:26:16,573 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 07:26:16,573 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:26:16,573 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:26:16,573 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:26:16,573 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:26:16,610 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 07:26:16,611 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 [2022-12-14 07:26:16,620 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 [2022-12-14 07:26:16,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-12-14 07:26:16,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:16,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:26:16,731 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 07:26:16,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 365 treesize of output 356 [2022-12-14 07:26:16,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:26:16,947 INFO L321 Elim1Store]: treesize reduction 129, result has 5.1 percent of original size [2022-12-14 07:26:16,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 357 treesize of output 351 [2022-12-14 07:26:17,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 07:26:17,054 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 16 treesize of output 12 [2022-12-14 07:26:17,080 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 111 treesize of output 110 [2022-12-14 07:26:17,122 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 16 treesize of output 12 [2022-12-14 07:26:17,151 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 111 treesize of output 110 [2022-12-14 07:26:17,240 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:26:17,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [214064198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:17,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:26:17,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5] total 19 [2022-12-14 07:26:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976663297] [2022-12-14 07:26:17,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:17,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 07:26:17,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:26:17,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 07:26:17,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2022-12-14 07:26:17,780 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) [2022-12-14 07:26:18,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:18,276 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-12-14 07:26:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:26:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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 25 [2022-12-14 07:26:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:18,276 INFO L225 Difference]: With dead ends: 28 [2022-12-14 07:26:18,277 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:26:18,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2022-12-14 07:26:18,278 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:18,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:26:18,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:26:18,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:26:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:26:18,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-12-14 07:26:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:18,279 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:26:18,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) [2022-12-14 07:26:18,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:26:18,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:26:18,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 07:26:18,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 07:26:18,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 07:26:18,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 07:26:18,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 07:26:18,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 07:26:18,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 07:26:18,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 07:26:18,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:26:18,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 07:26:18,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 07:26:18,621 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-12-14 07:26:18,621 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 07:26:18,622 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-12-14 07:26:18,622 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2022-12-14 07:26:18,622 INFO L899 garLoopResultBuilder]: For program point L27-4(line 27) no Hoare annotation was computed. [2022-12-14 07:26:18,622 INFO L895 garLoopResultBuilder]: At program point L27-5(lines 27 34) the Hoare annotation is: (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 1 ~SIZE~0) (= |ULTIMATE.start_main_~low~0#1| 2) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= 3 |ULTIMATE.start_main_~val2~0#1|) (= |ULTIMATE.start_main_~val1~0#1| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 07:26:18,622 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 40) no Hoare annotation was computed. [2022-12-14 07:26:18,622 INFO L902 garLoopResultBuilder]: At program point L19-1(lines 19 40) the Hoare annotation is: true [2022-12-14 07:26:18,622 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 07:26:18,622 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L895 garLoopResultBuilder]: At program point L36-5(lines 36 39) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse1 (= ~MAX~0 100000)) (.cse2 (= |ULTIMATE.start_main_~low~0#1| 2)) (.cse3 (<= ~SIZE~0 100000)) (.cse4 (= 3 |ULTIMATE.start_main_~val2~0#1|)) (.cse5 (= |ULTIMATE.start_main_~val1~0#1| 0)) (.cse6 (= |#NULL.offset| 0)) (.cse7 (<= 0 |#StackHeapBarrier|)) (.cse8 (= |#NULL.base| 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 1 ~SIZE~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) .cse7 .cse8))) [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-12-14 07:26:18,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-12-14 07:26:18,624 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 32) no Hoare annotation was computed. [2022-12-14 07:26:18,624 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 32) no Hoare annotation was computed. [2022-12-14 07:26:18,624 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 07:26:18,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 07:26:18,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 07:26:18,629 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:18,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:26:18,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:26:18 BoogieIcfgContainer [2022-12-14 07:26:18,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:26:18,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:26:18,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:26:18,644 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:26:18,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:26:09" (3/4) ... [2022-12-14 07:26:18,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:26:18,652 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-14 07:26:18,653 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 07:26:18,653 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 07:26:18,653 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:26:18,653 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:26:18,675 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:26:18,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:26:18,675 INFO L158 Benchmark]: Toolchain (without parser) took 9497.32ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 76.7MB in the beginning and 101.8MB in the end (delta: -25.0MB). Peak memory consumption was 419.8kB. Max. memory is 16.1GB. [2022-12-14 07:26:18,676 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:26:18,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.58ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 66.1MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:26:18,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.93ms. Allocated memory is still 109.1MB. Free memory was 66.1MB in the beginning and 64.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:26:18,676 INFO L158 Benchmark]: Boogie Preprocessor took 16.27ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 63.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:26:18,676 INFO L158 Benchmark]: RCFGBuilder took 236.90ms. Allocated memory is still 109.1MB. Free memory was 63.2MB in the beginning and 50.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 07:26:18,677 INFO L158 Benchmark]: TraceAbstraction took 9012.71ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 49.5MB in the beginning and 103.9MB in the end (delta: -54.4MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2022-12-14 07:26:18,677 INFO L158 Benchmark]: Witness Printer took 31.16ms. Allocated memory is still 134.2MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:26:18,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.58ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 66.1MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.93ms. Allocated memory is still 109.1MB. Free memory was 66.1MB in the beginning and 64.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.27ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 63.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 236.90ms. Allocated memory is still 109.1MB. Free memory was 63.2MB in the beginning and 50.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9012.71ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 49.5MB in the beginning and 103.9MB in the end (delta: -54.4MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Witness Printer took 31.16ms. Allocated memory is still 134.2MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 177 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 453 IncrementalHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 75 mSDtfsCounter, 453 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 162 SyntacticMatches, 13 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=6, 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: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 67 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 110 HoareAnnotationTreeSize, 3 FomulaSimplifications, 438 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 443 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 603 SizeOfPredicates, 7 NumberOfNonLiveVariables, 514 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 66/118 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 46, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 143, TOOLS_POST_TIME: 2.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 143, TOOLS_QUANTIFIERELIM_TIME: 2.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 219, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 17, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 8, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 46, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 1.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 610, DAG_COMPRESSION_RETAINED_NODES: 140, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((a == 0 && 1 <= i) && MAX == 100000) && i <= 2147483647) && 1 <= SIZE) && low == 2) && SIZE <= 100000) && 3 == val2) && val1 == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((a == 0 && i == 0) && MAX == 100000) && low == 2) && SIZE <= 100000) && 3 == val2) && val1 == 0) && #NULL == 0) && i < SIZE) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((a == 0 && MAX == 100000) && i <= 2147483647) && 1 <= SIZE) && low == 2) && SIZE <= 100000) && 0 <= i) && 3 == val2) && val1 == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 07:26:18,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9094e40-1e24-42d4-87db-d19ef635391c/bin/utaipan-gh47qXpMRh/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