./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:34:30,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:34:30,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:34:30,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:34:30,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:34:30,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:34:30,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:34:30,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:34:30,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:34:30,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:34:30,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:34:30,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:34:30,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:34:30,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:34:30,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:34:30,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:34:30,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:34:30,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:34:30,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:34:30,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:34:30,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:34:30,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:34:30,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:34:30,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:34:30,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:34:30,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:34:30,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:34:30,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:34:30,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:34:30,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:34:30,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:34:30,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:34:30,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:34:30,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:34:30,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:34:30,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:34:30,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:34:30,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:34:30,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:34:30,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:34:30,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:34:30,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:34:30,263 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:34:30,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:34:30,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:34:30,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:34:30,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:34:30,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:34:30,265 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:34:30,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:34:30,265 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:34:30,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:34:30,266 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:34:30,266 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:34:30,266 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:34:30,266 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:34:30,267 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:34:30,267 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:34:30,267 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:34:30,267 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:34:30,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:34:30,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:34:30,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:34:30,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:34:30,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:34:30,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:34:30,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:34:30,270 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:34:30,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:34:30,270 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:34:30,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:34:30,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:34:30,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:34:30,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:34:30,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:34:30,272 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:34:30,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:34:30,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:34:30,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:34:30,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:34:30,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:34:30,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:34:30,273 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_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f [2022-11-26 00:34:30,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:34:30,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:34:30,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:34:30,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:34:30,643 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:34:30,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2022-11-26 00:34:33,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:34:34,075 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:34:34,076 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2022-11-26 00:34:34,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/data/588c14609/4b33bd15325945a4b04a5f5512caac19/FLAG1e5a03a5b [2022-11-26 00:34:34,100 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/data/588c14609/4b33bd15325945a4b04a5f5512caac19 [2022-11-26 00:34:34,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:34:34,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:34:34,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:34:34,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:34:34,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:34:34,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53af5ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34, skipping insertion in model container [2022-11-26 00:34:34,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:34:34,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:34:34,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:34:34,321 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:34:34,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:34:34,344 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:34:34,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34 WrapperNode [2022-11-26 00:34:34,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:34:34,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:34:34,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:34:34,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:34:34,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,376 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2022-11-26 00:34:34,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:34:34,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:34:34,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:34:34,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:34:34,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:34:34,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:34:34,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:34:34,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:34:34,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (1/1) ... [2022-11-26 00:34:34,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:34:34,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:34,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:34:34,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:34:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:34:34,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:34:34,549 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:34:34,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:34:34,669 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:34:34,698 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:34:34,698 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:34:34,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:34:34 BoogieIcfgContainer [2022-11-26 00:34:34,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:34:34,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:34:34,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:34:34,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:34:34,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:34:34" (1/3) ... [2022-11-26 00:34:34,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f878034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:34:34, skipping insertion in model container [2022-11-26 00:34:34,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:34:34" (2/3) ... [2022-11-26 00:34:34,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f878034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:34:34, skipping insertion in model container [2022-11-26 00:34:34,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:34:34" (3/3) ... [2022-11-26 00:34:34,715 INFO L112 eAbstractionObserver]: Analyzing ICFG java_LogBuiltIn.c [2022-11-26 00:34:34,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:34:34,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:34:34,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:34:34,801 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;@7c332b7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:34:34,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 00:34:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:34:34,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:34,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:34:34,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:34,825 INFO L85 PathProgramCache]: Analyzing trace with hash 58974, now seen corresponding path program 1 times [2022-11-26 00:34:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:34,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744654127] [2022-11-26 00:34:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:35,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:35,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744654127] [2022-11-26 00:34:35,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744654127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:35,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:35,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:34:35,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127562580] [2022-11-26 00:34:35,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:35,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:34:35,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:35,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:34:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:35,118 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:35,221 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-11-26 00:34:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:34:35,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-26 00:34:35,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:35,246 INFO L225 Difference]: With dead ends: 11 [2022-11-26 00:34:35,246 INFO L226 Difference]: Without dead ends: 9 [2022-11-26 00:34:35,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:35,265 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:35,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:34:35,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-26 00:34:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-26 00:34:35,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 6 states have (on average 1.5) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 00:34:35,304 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2022-11-26 00:34:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:35,305 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 00:34:35,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 00:34:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:34:35,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:35,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:34:35,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:34:35,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:35,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:35,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1828239, now seen corresponding path program 1 times [2022-11-26 00:34:35,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:35,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728394957] [2022-11-26 00:34:35,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:35,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:35,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:35,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728394957] [2022-11-26 00:34:35,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728394957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:35,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:35,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:34:35,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490380129] [2022-11-26 00:34:35,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:35,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:34:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:34:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:34:35,468 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) 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) [2022-11-26 00:34:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:35,487 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-11-26 00:34:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:34:35,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 [2022-11-26 00:34:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:35,489 INFO L225 Difference]: With dead ends: 9 [2022-11-26 00:34:35,489 INFO L226 Difference]: Without dead ends: 8 [2022-11-26 00:34:35,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:34:35,491 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:35,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:34:35,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-26 00:34:35,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-26 00:34:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-26 00:34:35,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2022-11-26 00:34:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:35,497 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-26 00:34:35,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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) [2022-11-26 00:34:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-26 00:34:35,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:34:35,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:35,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:34:35,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:34:35,499 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:35,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash 56675456, now seen corresponding path program 1 times [2022-11-26 00:34:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:35,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016410627] [2022-11-26 00:34:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:35,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:35,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:35,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016410627] [2022-11-26 00:34:35,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016410627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:35,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:35,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:34:35,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971110285] [2022-11-26 00:34:35,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:35,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:34:35,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:35,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:34:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:34:35,571 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 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) [2022-11-26 00:34:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:35,596 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2022-11-26 00:34:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:34:35,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2022-11-26 00:34:35,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:35,598 INFO L225 Difference]: With dead ends: 8 [2022-11-26 00:34:35,598 INFO L226 Difference]: Without dead ends: 7 [2022-11-26 00:34:35,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:34:35,606 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:35,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:34:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-26 00:34:35,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-26 00:34:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-26 00:34:35,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2022-11-26 00:34:35,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:35,621 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2022-11-26 00:34:35,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2022-11-26 00:34:35,621 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-11-26 00:34:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:34:35,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:35,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:34:35,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:34:35,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:35,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1756939185, now seen corresponding path program 1 times [2022-11-26 00:34:35,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:35,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7989194] [2022-11-26 00:34:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:35,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:35,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:35,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7989194] [2022-11-26 00:34:35,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7989194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:35,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:35,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:34:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596876073] [2022-11-26 00:34:35,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:35,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:34:35,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:35,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:34:35,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:34:35,769 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:35,823 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-26 00:34:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:34:35,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:34:35,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:35,824 INFO L225 Difference]: With dead ends: 13 [2022-11-26 00:34:35,824 INFO L226 Difference]: Without dead ends: 12 [2022-11-26 00:34:35,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:34:35,827 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:35,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:34:35,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-26 00:34:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-26 00:34:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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) [2022-11-26 00:34:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-26 00:34:35,833 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2022-11-26 00:34:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:35,834 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-26 00:34:35,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-26 00:34:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:34:35,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:35,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1] [2022-11-26 00:34:35,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:34:35,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:35,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:35,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1000923484, now seen corresponding path program 1 times [2022-11-26 00:34:35,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:35,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735760756] [2022-11-26 00:34:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:35,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:35,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:35,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735760756] [2022-11-26 00:34:35,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735760756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:34:35,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12423952] [2022-11-26 00:34:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:35,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:35,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:35,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:34:35,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:34:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:36,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:34:36,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:36,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:34:36,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:36,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12423952] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:34:36,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496065368] [2022-11-26 00:34:36,222 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:34:36,223 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:34:36,226 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:34:36,232 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:34:36,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:34:36,760 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:34:37,161 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '190#(and (<= |ULTIMATE.start_mlog_#in~x#1| 2147483647) (<= 0 |ULTIMATE.start_mlog_~res~0#1|) (<= 1 |ULTIMATE.start_main_#t~nondet1#1|) (<= |ULTIMATE.start_main_#t~nondet1#1| 2147483647) (< 2147483646 |ULTIMATE.start_mlog_#t~post0#1|) (<= 1 |ULTIMATE.start_mlog_#in~x#1|))' at error location [2022-11-26 00:34:37,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:34:37,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:34:37,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-26 00:34:37,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325902649] [2022-11-26 00:34:37,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:34:37,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:34:37,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:34:37,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:34:37,165 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:37,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:37,304 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-26 00:34:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:34:37,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:34:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:37,313 INFO L225 Difference]: With dead ends: 28 [2022-11-26 00:34:37,313 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:34:37,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:34:37,321 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:37,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 20 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:34:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:34:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-26 00:34:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:37,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-26 00:34:37,328 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 11 [2022-11-26 00:34:37,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:37,328 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-26 00:34:37,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-26 00:34:37,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 00:34:37,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:37,329 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1] [2022-11-26 00:34:37,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:37,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:37,531 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:37,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:37,531 INFO L85 PathProgramCache]: Analyzing trace with hash -995864207, now seen corresponding path program 2 times [2022-11-26 00:34:37,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:37,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457760694] [2022-11-26 00:34:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:37,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:37,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:37,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457760694] [2022-11-26 00:34:37,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457760694] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:34:37,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010957039] [2022-11-26 00:34:37,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:34:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:37,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:37,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:34:37,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:34:38,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-26 00:34:38,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:34:38,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-26 00:34:38,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:38,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:34:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:38,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010957039] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:34:38,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1203009474] [2022-11-26 00:34:38,411 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:34:38,412 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:34:38,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:34:38,413 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:34:38,413 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:34:38,689 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:34:39,202 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '440#(and (<= |ULTIMATE.start_mlog_#in~x#1| 2147483647) (<= 0 |ULTIMATE.start_mlog_~res~0#1|) (<= 1 |ULTIMATE.start_main_#t~nondet1#1|) (<= |ULTIMATE.start_main_#t~nondet1#1| 2147483647) (< 2147483646 |ULTIMATE.start_mlog_#t~post0#1|) (<= 1 |ULTIMATE.start_mlog_#in~x#1|))' at error location [2022-11-26 00:34:39,202 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:34:39,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:34:39,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2022-11-26 00:34:39,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288206226] [2022-11-26 00:34:39,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:34:39,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-26 00:34:39,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:39,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-26 00:34:39,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:34:39,206 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:39,486 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2022-11-26 00:34:39,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:34:39,486 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 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 26 [2022-11-26 00:34:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:39,488 INFO L225 Difference]: With dead ends: 58 [2022-11-26 00:34:39,488 INFO L226 Difference]: Without dead ends: 57 [2022-11-26 00:34:39,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-11-26 00:34:39,490 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:39,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 38 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:34:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-26 00:34:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-26 00:34:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2022-11-26 00:34:39,499 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 26 [2022-11-26 00:34:39,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:39,500 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2022-11-26 00:34:39,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:39,501 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2022-11-26 00:34:39,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-26 00:34:39,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:39,502 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1] [2022-11-26 00:34:39,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:39,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:39,713 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:39,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2034109935, now seen corresponding path program 3 times [2022-11-26 00:34:39,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:39,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687548449] [2022-11-26 00:34:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:40,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:40,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687548449] [2022-11-26 00:34:40,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687548449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:34:40,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696165641] [2022-11-26 00:34:40,492 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:34:40,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:40,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:40,495 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:34:40,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:34:40,560 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:34:40,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:34:40,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-26 00:34:40,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:40,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:34:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:41,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696165641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:34:41,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [299915909] [2022-11-26 00:34:41,319 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:34:41,319 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:34:41,319 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:34:41,320 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:34:41,320 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:34:41,515 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:34:42,346 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '978#(and (<= |ULTIMATE.start_mlog_#in~x#1| 2147483647) (<= 0 |ULTIMATE.start_mlog_~res~0#1|) (<= 1 |ULTIMATE.start_main_#t~nondet1#1|) (<= |ULTIMATE.start_main_#t~nondet1#1| 2147483647) (< 2147483646 |ULTIMATE.start_mlog_#t~post0#1|) (<= 1 |ULTIMATE.start_mlog_#in~x#1|))' at error location [2022-11-26 00:34:42,346 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:34:42,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:34:42,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2022-11-26 00:34:42,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174832544] [2022-11-26 00:34:42,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:34:42,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-26 00:34:42,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:42,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-26 00:34:42,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=1986, Unknown=0, NotChecked=0, Total=2550 [2022-11-26 00:34:42,350 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 46 states, 45 states have (on average 2.488888888888889) internal successors, (112), 45 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:43,019 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2022-11-26 00:34:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-26 00:34:43,020 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.488888888888889) internal successors, (112), 45 states have internal predecessors, (112), 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 56 [2022-11-26 00:34:43,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:43,021 INFO L225 Difference]: With dead ends: 118 [2022-11-26 00:34:43,021 INFO L226 Difference]: Without dead ends: 117 [2022-11-26 00:34:43,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 128 SyntacticMatches, 11 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1888 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1345, Invalid=3911, Unknown=0, NotChecked=0, Total=5256 [2022-11-26 00:34:43,025 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 100 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:43,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 56 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:34:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-26 00:34:43,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2022-11-26 00:34:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.0086206896551724) internal successors, (117), 116 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2022-11-26 00:34:43,068 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 56 [2022-11-26 00:34:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:43,069 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2022-11-26 00:34:43,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.488888888888889) internal successors, (112), 45 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2022-11-26 00:34:43,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-26 00:34:43,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:43,072 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1] [2022-11-26 00:34:43,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:43,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:43,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:43,278 INFO L85 PathProgramCache]: Analyzing trace with hash 87468881, now seen corresponding path program 4 times [2022-11-26 00:34:43,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:43,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760976207] [2022-11-26 00:34:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:43,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:45,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:45,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760976207] [2022-11-26 00:34:45,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760976207] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:34:45,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609596542] [2022-11-26 00:34:45,410 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:34:45,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:45,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:45,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:34:45,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:34:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:45,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-26 00:34:45,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:45,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:34:48,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:48,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609596542] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:34:48,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1745226641] [2022-11-26 00:34:48,057 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:34:48,057 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:34:48,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:34:48,058 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:34:48,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:34:48,233 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:34:50,459 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2092#(and (<= |ULTIMATE.start_mlog_#in~x#1| 2147483647) (<= 0 |ULTIMATE.start_mlog_~res~0#1|) (<= 1 |ULTIMATE.start_main_#t~nondet1#1|) (<= |ULTIMATE.start_main_#t~nondet1#1| 2147483647) (< 2147483646 |ULTIMATE.start_mlog_#t~post0#1|) (<= 1 |ULTIMATE.start_mlog_#in~x#1|))' at error location [2022-11-26 00:34:50,460 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:34:50,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:34:50,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2022-11-26 00:34:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654882835] [2022-11-26 00:34:50,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:34:50,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-26 00:34:50,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:50,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-26 00:34:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2268, Invalid=7434, Unknown=0, NotChecked=0, Total=9702 [2022-11-26 00:34:50,470 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand has 94 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 93 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:52,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:52,526 INFO L93 Difference]: Finished difference Result 238 states and 261 transitions. [2022-11-26 00:34:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-26 00:34:52,527 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 93 states have internal predecessors, (232), 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 116 [2022-11-26 00:34:52,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:52,529 INFO L225 Difference]: With dead ends: 238 [2022-11-26 00:34:52,529 INFO L226 Difference]: Without dead ends: 237 [2022-11-26 00:34:52,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 272 SyntacticMatches, 23 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7828 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=5557, Invalid=15323, Unknown=0, NotChecked=0, Total=20880 [2022-11-26 00:34:52,536 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 252 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:52,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 108 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:34:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-11-26 00:34:52,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-11-26 00:34:52,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.0042372881355932) internal successors, (237), 236 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2022-11-26 00:34:52,557 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 116 [2022-11-26 00:34:52,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:52,557 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2022-11-26 00:34:52,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 93 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:52,558 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2022-11-26 00:34:52,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-26 00:34:52,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:52,561 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1] [2022-11-26 00:34:52,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:52,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:52,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:34:52,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1100873169, now seen corresponding path program 5 times [2022-11-26 00:34:52,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:52,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433228627] [2022-11-26 00:34:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 4741 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-26 00:35:03,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:03,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433228627] [2022-11-26 00:35:03,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433228627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:03,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:03,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-11-26 00:35:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293557232] [2022-11-26 00:35:03,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:03,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-11-26 00:35:03,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:03,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-11-26 00:35:03,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2022-11-26 00:35:03,717 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand has 63 states, 63 states have (on average 2.507936507936508) internal successors, (158), 62 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:35:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:04,200 INFO L93 Difference]: Finished difference Result 237 states and 237 transitions. [2022-11-26 00:35:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-26 00:35:04,201 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.507936507936508) internal successors, (158), 62 states have internal predecessors, (158), 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 236 [2022-11-26 00:35:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:04,202 INFO L225 Difference]: With dead ends: 237 [2022-11-26 00:35:04,203 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:35:04,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 30 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2022-11-26 00:35:04,205 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:04,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:35:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:35:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:35:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:35:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:35:04,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2022-11-26 00:35:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:04,208 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:35:04,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.507936507936508) internal successors, (158), 62 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:35:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:35:04,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:35:04,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-26 00:35:04,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-26 00:35:04,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-26 00:35:04,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-26 00:35:04,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:35:04,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:35:04,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-26 00:35:04,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:35:04,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-11-26 00:35:04,496 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-11-26 00:35:04,497 INFO L899 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2022-11-26 00:35:04,497 INFO L895 garLoopResultBuilder]: At program point L7-2(lines 7 12) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_mlog_~res~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 0) (<= |ULTIMATE.start_mlog_~x#1| 2147483647)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 65535) (<= |ULTIMATE.start_mlog_~res~0#1| 15)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 2097151) (<= |ULTIMATE.start_mlog_~res~0#1| 10)) (and .cse0 (< |ULTIMATE.start_mlog_~res~0#1| 2147483629) (<= |ULTIMATE.start_mlog_~x#1| 15)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 13) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 262143)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 9) (<= |ULTIMATE.start_mlog_~x#1| 4194303)) (and (<= |ULTIMATE.start_mlog_~x#1| 16383) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 17)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 1) (< |ULTIMATE.start_mlog_~res~0#1| 2147483632)) (and (<= |ULTIMATE.start_mlog_~x#1| 511) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 22)) (and (<= |ULTIMATE.start_mlog_~x#1| 131071) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 14)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 32767) (<= |ULTIMATE.start_mlog_~res~0#1| 16)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 1023) (<= |ULTIMATE.start_mlog_~res~0#1| 21)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 8) (<= |ULTIMATE.start_mlog_~x#1| 8388607)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 2047) (<= |ULTIMATE.start_mlog_~res~0#1| 20)) (and (<= |ULTIMATE.start_mlog_~x#1| 4095) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 19)) (and .cse0 (< |ULTIMATE.start_mlog_~res~0#1| 2147483630) (<= |ULTIMATE.start_mlog_~x#1| 7)) (and (< |ULTIMATE.start_mlog_~res~0#1| 2147483628) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 31)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 268435455) (<= |ULTIMATE.start_mlog_~res~0#1| 3)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 12) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 524287)) (and (<= |ULTIMATE.start_mlog_~x#1| 1048575) (<= |ULTIMATE.start_mlog_~res~0#1| 11) .cse0) (and .cse0 (< |ULTIMATE.start_mlog_~res~0#1| 2147483626) (<= |ULTIMATE.start_mlog_~x#1| 127)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 16777215) (<= |ULTIMATE.start_mlog_~res~0#1| 7)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 18) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 8191)) (and (< |ULTIMATE.start_mlog_~res~0#1| 2147483625) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 255)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 5) (<= |ULTIMATE.start_mlog_~x#1| 67108863)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 4) (<= |ULTIMATE.start_mlog_~x#1| 134217727)) (and .cse0 (< |ULTIMATE.start_mlog_~res~0#1| 2147483627) (<= |ULTIMATE.start_mlog_~x#1| 63)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 536870911) (<= |ULTIMATE.start_mlog_~res~0#1| 2)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 6) (<= |ULTIMATE.start_mlog_~x#1| 33554431)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 3) (< |ULTIMATE.start_mlog_~res~0#1| 2147483631)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 1) (<= |ULTIMATE.start_mlog_~x#1| 1073741823)))) [2022-11-26 00:35:04,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2022-11-26 00:35:04,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-11-26 00:35:04,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:35:04,499 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-11-26 00:35:04,499 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-11-26 00:35:04,503 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2022-11-26 00:35:04,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:35:04,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:35:04 BoogieIcfgContainer [2022-11-26 00:35:04,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:35:04,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:35:04,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:35:04,531 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:35:04,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:34:34" (3/4) ... [2022-11-26 00:35:04,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:35:04,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-26 00:35:04,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-26 00:35:04,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:35:04,577 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:35:04,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:35:04,578 INFO L158 Benchmark]: Toolchain (without parser) took 30473.41ms. Allocated memory was 161.5MB in the beginning and 654.3MB in the end (delta: 492.8MB). Free memory was 121.7MB in the beginning and 579.1MB in the end (delta: -457.4MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-11-26 00:35:04,579 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 86.2MB in the beginning and 86.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:35:04,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.69ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 111.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 00:35:04,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 110.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:35:04,580 INFO L158 Benchmark]: Boogie Preprocessor took 24.53ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 109.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:35:04,580 INFO L158 Benchmark]: RCFGBuilder took 299.54ms. Allocated memory is still 161.5MB. Free memory was 109.6MB in the beginning and 99.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:35:04,581 INFO L158 Benchmark]: TraceAbstraction took 29824.18ms. Allocated memory was 161.5MB in the beginning and 654.3MB in the end (delta: 492.8MB). Free memory was 98.6MB in the beginning and 581.2MB in the end (delta: -482.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-11-26 00:35:04,581 INFO L158 Benchmark]: Witness Printer took 47.38ms. Allocated memory is still 654.3MB. Free memory was 581.2MB in the beginning and 579.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:35:04,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 86.2MB in the beginning and 86.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.69ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 111.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 110.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.53ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 109.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.54ms. Allocated memory is still 161.5MB. Free memory was 109.6MB in the beginning and 99.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 29824.18ms. Allocated memory was 161.5MB in the beginning and 654.3MB in the end (delta: 492.8MB). Free memory was 98.6MB in the beginning and 581.2MB in the end (delta: -482.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 47.38ms. Allocated memory is still 654.3MB. Free memory was 581.2MB in the beginning and 579.1MB in the end (delta: 2.2MB). 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: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: 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, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 29.7s, OverallIterations: 9, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 417 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 417 mSDsluCounter, 636 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 550 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 979 IncrementalHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 86 mSDtfsCounter, 979 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 886 GetRequests, 478 SyntacticMatches, 72 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10660 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=8, InterpolantAutomatonStates: 250, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 32 NumberOfFragments, 311 HoareAnnotationTreeSize, 1 FomulaSimplifications, 144 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 672 NumberOfCodeBlocks, 672 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 864 ConstructedInterpolants, 0 QuantifiedInterpolants, 2670 SizeOfPredicates, 41 NumberOfNonLiveVariables, 483 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 5405/10190 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((0 <= res && res <= 0) && x <= 2147483647) || ((0 <= res && x <= 65535) && res <= 15)) || ((0 <= res && x <= 2097151) && res <= 10)) || ((0 <= res && res < 2147483629) && x <= 15)) || ((res <= 13 && 0 <= res) && x <= 262143)) || ((0 <= res && res <= 9) && x <= 4194303)) || ((x <= 16383 && 0 <= res) && res <= 17)) || ((0 <= res && x <= 1) && res < 2147483632)) || ((x <= 511 && 0 <= res) && res <= 22)) || ((x <= 131071 && 0 <= res) && res <= 14)) || ((0 <= res && x <= 32767) && res <= 16)) || ((0 <= res && x <= 1023) && res <= 21)) || ((0 <= res && res <= 8) && x <= 8388607)) || ((0 <= res && x <= 2047) && res <= 20)) || ((x <= 4095 && 0 <= res) && res <= 19)) || ((0 <= res && res < 2147483630) && x <= 7)) || ((res < 2147483628 && 0 <= res) && x <= 31)) || ((0 <= res && x <= 268435455) && res <= 3)) || ((res <= 12 && 0 <= res) && x <= 524287)) || ((x <= 1048575 && res <= 11) && 0 <= res)) || ((0 <= res && res < 2147483626) && x <= 127)) || ((0 <= res && x <= 16777215) && res <= 7)) || ((res <= 18 && 0 <= res) && x <= 8191)) || ((res < 2147483625 && 0 <= res) && x <= 255)) || ((0 <= res && res <= 5) && x <= 67108863)) || ((0 <= res && res <= 4) && x <= 134217727)) || ((0 <= res && res < 2147483627) && x <= 63)) || ((0 <= res && x <= 536870911) && res <= 2)) || ((0 <= res && res <= 6) && x <= 33554431)) || ((0 <= res && x <= 3) && res < 2147483631)) || ((0 <= res && res <= 1) && x <= 1073741823) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:35:04,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe0811e-7a58-430b-8d7a-46c64193823c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE