./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/a.09_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/a.09_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0 --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 de9e6a194e0438bd2ca90d674a89a0fc54a4d9f9ed579627c7693dfb10f66ae0 --- 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-e04fb08 [2022-11-16 16:24:57,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:24:57,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:24:57,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:24:57,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:24:57,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:24:57,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:24:57,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:24:57,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:24:57,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:24:57,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:24:57,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:24:57,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:24:57,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:24:57,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:24:57,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:24:57,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:24:57,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:24:57,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:24:57,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:24:57,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:24:57,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:24:57,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:24:57,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:24:57,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:24:57,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:24:57,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:24:57,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:24:57,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:24:57,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:24:57,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:24:57,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:24:57,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:24:57,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:24:57,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:24:57,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:24:57,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:24:57,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:24:57,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:24:57,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:24:57,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:24:57,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-16 16:24:57,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:24:57,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:24:57,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:24:57,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:24:57,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:24:57,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:24:57,394 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:24:57,394 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:24:57,394 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:24:57,394 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:24:57,396 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:24:57,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:24:57,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:24:57,397 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:24:57,397 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:24:57,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:24:57,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:24:57,398 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:24:57,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:24:57,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:24:57,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:24:57,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:24:57,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:24:57,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:24:57,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:24:57,401 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:24:57,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:24:57,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:24:57,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:24:57,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:24:57,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:24:57,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:24:57,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:24:57,404 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:24:57,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:24:57,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:24:57,405 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:24:57,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:24:57,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:24:57,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:24:57,406 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_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de9e6a194e0438bd2ca90d674a89a0fc54a4d9f9ed579627c7693dfb10f66ae0 [2022-11-16 16:24:57,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:24:57,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:24:57,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:24:57,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:24:57,767 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:24:57,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/termination-restricted-15/a.09_assume.c [2022-11-16 16:24:57,875 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/data/f1e3afe88/7097ef7360404bbfa5a1b0f0ac1c7ea6/FLAG4f50575ec [2022-11-16 16:24:58,403 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:24:58,404 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/sv-benchmarks/c/termination-restricted-15/a.09_assume.c [2022-11-16 16:24:58,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/data/f1e3afe88/7097ef7360404bbfa5a1b0f0ac1c7ea6/FLAG4f50575ec [2022-11-16 16:24:58,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/data/f1e3afe88/7097ef7360404bbfa5a1b0f0ac1c7ea6 [2022-11-16 16:24:58,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:24:58,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:24:58,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:24:58,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:24:58,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:24:58,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:24:58" (1/1) ... [2022-11-16 16:24:58,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f93b121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:58, skipping insertion in model container [2022-11-16 16:24:58,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:24:58" (1/1) ... [2022-11-16 16:24:58,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:24:58,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:24:59,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:24:59,049 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:24:59,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:24:59,085 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:24:59,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59 WrapperNode [2022-11-16 16:24:59,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:24:59,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:24:59,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:24:59,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:24:59,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,121 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-16 16:24:59,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:24:59,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:24:59,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:24:59,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:24:59,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:24:59,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:24:59,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:24:59,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:24:59,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (1/1) ... [2022-11-16 16:24:59,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:24:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:24:59,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:24:59,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:24:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:24:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:24:59,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:24:59,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:24:59,496 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:24:59,508 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:24:59,522 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 16:24:59,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:24:59 BoogieIcfgContainer [2022-11-16 16:24:59,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:24:59,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:24:59,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:24:59,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:24:59,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:24:58" (1/3) ... [2022-11-16 16:24:59,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1d2ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:24:59, skipping insertion in model container [2022-11-16 16:24:59,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:24:59" (2/3) ... [2022-11-16 16:24:59,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1d2ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:24:59, skipping insertion in model container [2022-11-16 16:24:59,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:24:59" (3/3) ... [2022-11-16 16:24:59,534 INFO L112 eAbstractionObserver]: Analyzing ICFG a.09_assume.c [2022-11-16 16:24:59,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:24:59,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 16:24:59,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:24:59,657 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;@ff71d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:24:59,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 16:24:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:24:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 16:24:59,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:24:59,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 16:24:59,687 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)] === [2022-11-16 16:24:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:24:59,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1973254, now seen corresponding path program 1 times [2022-11-16 16:24:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:24:59,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911631454] [2022-11-16 16:24:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:24:59,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:24:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:24:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:24:59,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:24:59,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911631454] [2022-11-16 16:24:59,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911631454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:24:59,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:24:59,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:24:59,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410940461] [2022-11-16 16:24:59,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:00,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:25:00,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:00,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:25:00,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:00,044 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:00,127 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-16 16:25:00,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:25:00,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-16 16:25:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:00,149 INFO L225 Difference]: With dead ends: 21 [2022-11-16 16:25:00,149 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 16:25:00,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:00,158 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:00,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:25:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 16:25:00,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2022-11-16 16:25:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 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) [2022-11-16 16:25:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-16 16:25:00,202 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 4 [2022-11-16 16:25:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:00,202 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-16 16:25:00,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-16 16:25:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:25:00,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:00,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:25:00,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:25:00,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 16:25:00,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash 61177004, now seen corresponding path program 1 times [2022-11-16 16:25:00,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:00,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945221540] [2022-11-16 16:25:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:00,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:25:00,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:00,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945221540] [2022-11-16 16:25:00,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945221540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:00,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:00,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:25:00,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626091725] [2022-11-16 16:25:00,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:00,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:25:00,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:00,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:25:00,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:00,259 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:00,282 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-11-16 16:25:00,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:25:00,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 16:25:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:00,284 INFO L225 Difference]: With dead ends: 22 [2022-11-16 16:25:00,285 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 16:25:00,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:00,291 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:00,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:25:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 16:25:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-16 16:25:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) 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) [2022-11-16 16:25:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-16 16:25:00,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2022-11-16 16:25:00,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:00,300 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-16 16:25:00,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,302 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-16 16:25:00,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:25:00,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:00,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:25:00,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:25:00,307 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 16:25:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:00,314 INFO L85 PathProgramCache]: Analyzing trace with hash 61170918, now seen corresponding path program 1 times [2022-11-16 16:25:00,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:00,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615870778] [2022-11-16 16:25:00,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:00,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:25:00,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:00,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615870778] [2022-11-16 16:25:00,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615870778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:00,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:00,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 16:25:00,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285073783] [2022-11-16 16:25:00,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:00,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:25:00,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:00,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:25:00,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:00,345 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-16 16:25:00,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:00,358 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-11-16 16:25:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:25:00,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2022-11-16 16:25:00,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:00,359 INFO L225 Difference]: With dead ends: 11 [2022-11-16 16:25:00,359 INFO L226 Difference]: Without dead ends: 10 [2022-11-16 16:25:00,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:25:00,361 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 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 [2022-11-16 16:25:00,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:25:00,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-16 16:25:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-16 16:25:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-16 16:25:00,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-11-16 16:25:00,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:00,365 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-16 16:25:00,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-16 16:25:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-16 16:25:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 16:25:00,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:00,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:00,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:25:00,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 16:25:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1344288280, now seen corresponding path program 1 times [2022-11-16 16:25:00,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:00,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042940656] [2022-11-16 16:25:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:25:00,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:00,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042940656] [2022-11-16 16:25:00,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042940656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:00,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:00,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:25:00,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775095934] [2022-11-16 16:25:00,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:00,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:25:00,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:00,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:25:00,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:00,463 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:00,491 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-16 16:25:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:25:00,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 16:25:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:00,493 INFO L225 Difference]: With dead ends: 10 [2022-11-16 16:25:00,493 INFO L226 Difference]: Without dead ends: 9 [2022-11-16 16:25:00,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:00,505 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:00,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:25:00,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-16 16:25:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-16 16:25:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) 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) [2022-11-16 16:25:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 16:25:00,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-11-16 16:25:00,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:00,508 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 16:25:00,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 16:25:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:25:00,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:00,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:00,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:25:00,510 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)] === [2022-11-16 16:25:00,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:00,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1276736336, now seen corresponding path program 1 times [2022-11-16 16:25:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:25:00,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715398246] [2022-11-16 16:25:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:00,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:25:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:25:00,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:25:00,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715398246] [2022-11-16 16:25:00,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715398246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:00,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:00,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:25:00,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632490480] [2022-11-16 16:25:00,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:00,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:25:00,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:25:00,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:25:00,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:25:00,608 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:00,642 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-11-16 16:25:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:25:00,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 16:25:00,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:00,644 INFO L225 Difference]: With dead ends: 9 [2022-11-16 16:25:00,644 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 16:25:00,644 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 [2022-11-16 16:25:00,645 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:00,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:25:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 16:25:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 16:25:00,647 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) [2022-11-16 16:25:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 16:25:00,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-16 16:25:00,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:00,647 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 16:25:00,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:25:00,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 16:25:00,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 16:25:00,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-16 16:25:00,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-16 16:25:00,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-16 16:25:00,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-16 16:25:00,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:25:00,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 16:25:00,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-11-16 16:25:00,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 16:25:00,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-11-16 16:25:00,680 INFO L899 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2022-11-16 16:25:00,681 INFO L899 garLoopResultBuilder]: For program point L10-3(line 10) no Hoare annotation was computed. [2022-11-16 16:25:00,681 INFO L899 garLoopResultBuilder]: For program point L10-5(lines 10 12) no Hoare annotation was computed. [2022-11-16 16:25:00,681 INFO L895 garLoopResultBuilder]: At program point L10-7(lines 10 12) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2022-11-16 16:25:00,681 INFO L902 garLoopResultBuilder]: At program point L10-8(lines 10 12) the Hoare annotation is: true [2022-11-16 16:25:00,685 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 16:25:00,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:25:00,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:25:00 BoogieIcfgContainer [2022-11-16 16:25:00,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:25:00,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:25:00,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:25:00,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:25:00,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:24:59" (3/4) ... [2022-11-16 16:25:00,724 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:25:00,733 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 16:25:00,733 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 16:25:00,734 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 16:25:00,764 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:25:00,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:25:00,765 INFO L158 Benchmark]: Toolchain (without parser) took 1994.62ms. Allocated memory is still 123.7MB. Free memory was 90.5MB in the beginning and 99.9MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:25:00,765 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:25:00,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.71ms. Allocated memory is still 123.7MB. Free memory was 90.5MB in the beginning and 101.1MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 16:25:00,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.25ms. Allocated memory is still 123.7MB. Free memory was 101.1MB in the beginning and 99.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:25:00,766 INFO L158 Benchmark]: Boogie Preprocessor took 28.58ms. Allocated memory is still 123.7MB. Free memory was 99.8MB in the beginning and 98.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:25:00,766 INFO L158 Benchmark]: RCFGBuilder took 372.18ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 88.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:25:00,767 INFO L158 Benchmark]: TraceAbstraction took 1192.76ms. Allocated memory is still 123.7MB. Free memory was 87.9MB in the beginning and 102.0MB in the end (delta: -14.0MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2022-11-16 16:25:00,767 INFO L158 Benchmark]: Witness Printer took 44.34ms. Allocated memory is still 123.7MB. Free memory was 102.0MB in the beginning and 99.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:25:00,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.71ms. Allocated memory is still 123.7MB. Free memory was 90.5MB in the beginning and 101.1MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.25ms. Allocated memory is still 123.7MB. Free memory was 101.1MB in the beginning and 99.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.58ms. Allocated memory is still 123.7MB. Free memory was 99.8MB in the beginning and 98.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 372.18ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 88.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1192.76ms. Allocated memory is still 123.7MB. Free memory was 87.9MB in the beginning and 102.0MB in the end (delta: -14.0MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Witness Printer took 44.34ms. Allocated memory is still 123.7MB. Free memory was 102.0MB in the beginning and 99.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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 - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 25 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 10]: Loop Invariant Derived loop invariant: 0 <= z + 2147483648 && y <= 2147483647 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-16 16:25:00,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432f35e7-7e4a-4bb9-8969-7a0df6960b75/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE