./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:18:03,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:18:03,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:18:03,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:18:03,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:18:03,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:18:03,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:18:03,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:18:03,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:18:03,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:18:03,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:18:03,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:18:03,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:18:03,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:18:03,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:18:03,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:18:03,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:18:03,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:18:03,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:18:03,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:18:03,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:18:03,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:18:03,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:18:03,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:18:03,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:18:03,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:18:03,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:18:03,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:18:03,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:18:03,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:18:03,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:18:03,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:18:03,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:18:03,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:18:03,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:18:03,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:18:03,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:18:03,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:18:03,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:18:03,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:18:03,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:18:03,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:18:03,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:18:03,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:18:03,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:18:03,500 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:18:03,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:18:03,500 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:18:03,501 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:18:03,501 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:18:03,509 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:18:03,509 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:18:03,510 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:18:03,511 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:18:03,511 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:18:03,511 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:18:03,512 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:18:03,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:18:03,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:18:03,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:18:03,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:18:03,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:18:03,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:18:03,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:18:03,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:18:03,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:18:03,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:18:03,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:18:03,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:18:03,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:18:03,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:18:03,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:18:03,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:18:03,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:18:03,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:18:03,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:18:03,519 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:18:03,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:18:03,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:18:03,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:18:03,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:18:03,521 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e [2021-10-29 05:18:03,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:18:03,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:18:03,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:18:03,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:18:03,902 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:18:03,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2021-10-29 05:18:03,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/data/52907a0ef/4cc7eed0024845beaba71da51b7c2b2c/FLAG0edad2c76 [2021-10-29 05:18:04,662 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:18:04,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2021-10-29 05:18:04,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/data/52907a0ef/4cc7eed0024845beaba71da51b7c2b2c/FLAG0edad2c76 [2021-10-29 05:18:05,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/data/52907a0ef/4cc7eed0024845beaba71da51b7c2b2c [2021-10-29 05:18:05,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:18:05,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:18:05,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:18:05,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:18:05,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:18:05,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499975fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05, skipping insertion in model container [2021-10-29 05:18:05,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:18:05,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:18:05,240 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c[576,589] [2021-10-29 05:18:05,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:18:05,295 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:18:05,313 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c[576,589] [2021-10-29 05:18:05,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:18:05,340 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:18:05,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05 WrapperNode [2021-10-29 05:18:05,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:18:05,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:18:05,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:18:05,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:18:05,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:18:05,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:18:05,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:18:05,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:18:05,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:18:05,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:18:05,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:18:05,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:18:05,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (1/1) ... [2021-10-29 05:18:05,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:18:05,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:05,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:18:05,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:18:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:18:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:18:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:18:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:18:05,996 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:18:05,997 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-29 05:18:06,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:18:06 BoogieIcfgContainer [2021-10-29 05:18:06,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:18:06,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:18:06,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:18:06,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:18:06,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:18:05" (1/3) ... [2021-10-29 05:18:06,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbe7110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:18:06, skipping insertion in model container [2021-10-29 05:18:06,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:18:05" (2/3) ... [2021-10-29 05:18:06,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbe7110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:18:06, skipping insertion in model container [2021-10-29 05:18:06,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:18:06" (3/3) ... [2021-10-29 05:18:06,024 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound100.c [2021-10-29 05:18:06,030 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:18:06,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-29 05:18:06,103 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:18:06,112 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:18:06,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-29 05:18:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 35 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:18:06,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:06,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:18:06,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:06,150 INFO L85 PathProgramCache]: Analyzing trace with hash 152967942, now seen corresponding path program 1 times [2021-10-29 05:18:06,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:06,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245229576] [2021-10-29 05:18:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:06,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:06,370 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:06,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245229576] [2021-10-29 05:18:06,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245229576] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:06,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:06,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:18:06,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772829643] [2021-10-29 05:18:06,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:18:06,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:18:06,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:18:06,401 INFO L87 Difference]: Start difference. First operand has 36 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 35 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 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) [2021-10-29 05:18:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:06,422 INFO L93 Difference]: Finished difference Result 71 states and 95 transitions. [2021-10-29 05:18:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:18:06,424 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2021-10-29 05:18:06,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:06,434 INFO L225 Difference]: With dead ends: 71 [2021-10-29 05:18:06,434 INFO L226 Difference]: Without dead ends: 34 [2021-10-29 05:18:06,438 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:18:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-29 05:18:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-29 05:18:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 33 states have internal predecessors, (37), 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) [2021-10-29 05:18:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-10-29 05:18:06,478 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 5 [2021-10-29 05:18:06,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:06,479 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-10-29 05:18:06,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2021-10-29 05:18:06,479 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-10-29 05:18:06,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:18:06,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:06,480 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:18:06,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:18:06,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash 150046441, now seen corresponding path program 1 times [2021-10-29 05:18:06,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:06,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429268941] [2021-10-29 05:18:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:06,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:06,506 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:18:06,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245581134] [2021-10-29 05:18:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:06,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:06,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:18:06,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:18:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:06,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 05:18:06,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:18:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:06,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:18:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:06,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:06,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429268941] [2021-10-29 05:18:06,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:06,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245581134] [2021-10-29 05:18:06,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245581134] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:06,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:06,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:18:06,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228792130] [2021-10-29 05:18:06,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:18:06,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:06,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:18:06,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:18:06,964 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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) [2021-10-29 05:18:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:07,154 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2021-10-29 05:18:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:18:07,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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 5 [2021-10-29 05:18:07,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:07,159 INFO L225 Difference]: With dead ends: 52 [2021-10-29 05:18:07,159 INFO L226 Difference]: Without dead ends: 46 [2021-10-29 05:18:07,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:18:07,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-29 05:18:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 28. [2021-10-29 05:18:07,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:07,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-10-29 05:18:07,184 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 5 [2021-10-29 05:18:07,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:07,185 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-10-29 05:18:07,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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) [2021-10-29 05:18:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-10-29 05:18:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:18:07,186 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:07,186 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:18:07,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:18:07,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:07,387 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:07,388 INFO L85 PathProgramCache]: Analyzing trace with hash 356501228, now seen corresponding path program 1 times [2021-10-29 05:18:07,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:07,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140148613] [2021-10-29 05:18:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:07,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:07,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:07,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140148613] [2021-10-29 05:18:07,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140148613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:07,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:07,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:18:07,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811529835] [2021-10-29 05:18:07,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:18:07,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:18:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:18:07,462 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 4 states have (on average 1.5) 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) [2021-10-29 05:18:07,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:07,499 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-10-29 05:18:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:18:07,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) 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 [2021-10-29 05:18:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:07,500 INFO L225 Difference]: With dead ends: 34 [2021-10-29 05:18:07,501 INFO L226 Difference]: Without dead ends: 30 [2021-10-29 05:18:07,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:18:07,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-29 05:18:07,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-29 05:18:07,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:07,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-10-29 05:18:07,509 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 6 [2021-10-29 05:18:07,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:07,510 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-10-29 05:18:07,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) 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) [2021-10-29 05:18:07,510 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-10-29 05:18:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:18:07,511 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:07,511 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:18:07,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:18:07,512 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:07,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1834102484, now seen corresponding path program 1 times [2021-10-29 05:18:07,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:07,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335823413] [2021-10-29 05:18:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:07,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:07,528 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:18:07,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034114338] [2021-10-29 05:18:07,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:07,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:07,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:07,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:18:07,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 05:18:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:07,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 05:18:07,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:18:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:07,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:18:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:07,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:07,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335823413] [2021-10-29 05:18:07,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:07,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034114338] [2021-10-29 05:18:07,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034114338] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:07,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:07,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:18:07,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319680979] [2021-10-29 05:18:07,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:18:07,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:07,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:18:07,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:18:07,915 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2021-10-29 05:18:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:08,056 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2021-10-29 05:18:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:18:08,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 05:18:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:08,062 INFO L225 Difference]: With dead ends: 61 [2021-10-29 05:18:08,062 INFO L226 Difference]: Without dead ends: 53 [2021-10-29 05:18:08,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:18:08,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-29 05:18:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-10-29 05:18:08,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 40 states have (on average 1.25) internal successors, (50), 43 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:08,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2021-10-29 05:18:08,087 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 7 [2021-10-29 05:18:08,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:08,087 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2021-10-29 05:18:08,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2021-10-29 05:18:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-10-29 05:18:08,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:18:08,089 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:08,089 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:18:08,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:18:08,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:08,309 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:08,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1966454167, now seen corresponding path program 1 times [2021-10-29 05:18:08,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:08,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450319507] [2021-10-29 05:18:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:08,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:08,338 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:18:08,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763205283] [2021-10-29 05:18:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:08,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:08,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:08,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:18:08,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 05:18:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:08,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:18:08,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:18:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:08,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:18:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:08,609 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:08,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450319507] [2021-10-29 05:18:08,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:08,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763205283] [2021-10-29 05:18:08,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763205283] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:08,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:08,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 05:18:08,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538786734] [2021-10-29 05:18:08,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:18:08,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:08,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:18:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:18:08,629 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:08,721 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2021-10-29 05:18:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:18:08,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 05:18:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:08,732 INFO L225 Difference]: With dead ends: 114 [2021-10-29 05:18:08,733 INFO L226 Difference]: Without dead ends: 87 [2021-10-29 05:18:08,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:18:08,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-29 05:18:08,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2021-10-29 05:18:08,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 74 states have internal predecessors, (88), 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) [2021-10-29 05:18:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2021-10-29 05:18:08,752 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 15 [2021-10-29 05:18:08,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:08,752 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2021-10-29 05:18:08,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2021-10-29 05:18:08,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:18:08,754 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:08,754 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:18:08,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:18:08,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:08,964 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:08,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1763500994, now seen corresponding path program 1 times [2021-10-29 05:18:08,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:08,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547253034] [2021-10-29 05:18:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:08,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:08,993 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:18:08,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940521315] [2021-10-29 05:18:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:08,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:08,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:08,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:18:08,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 05:18:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:09,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:18:09,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:18:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:09,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:18:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:09,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:09,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547253034] [2021-10-29 05:18:09,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:09,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940521315] [2021-10-29 05:18:09,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940521315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:09,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:18:09,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:18:09,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972679027] [2021-10-29 05:18:09,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:18:09,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:09,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:18:09,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:18:09,312 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:09,421 INFO L93 Difference]: Finished difference Result 79 states and 93 transitions. [2021-10-29 05:18:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:18:09,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 05:18:09,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:09,425 INFO L225 Difference]: With dead ends: 79 [2021-10-29 05:18:09,425 INFO L226 Difference]: Without dead ends: 77 [2021-10-29 05:18:09,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:18:09,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-29 05:18:09,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-10-29 05:18:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 72 states have internal predecessors, (83), 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) [2021-10-29 05:18:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2021-10-29 05:18:09,456 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 15 [2021-10-29 05:18:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:09,456 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2021-10-29 05:18:09,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-10-29 05:18:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:18:09,458 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:09,458 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:18:09,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:18:09,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-29 05:18:09,685 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 81620196, now seen corresponding path program 1 times [2021-10-29 05:18:09,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:09,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293170044] [2021-10-29 05:18:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:09,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:09,694 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:18:09,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412384142] [2021-10-29 05:18:09,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:09,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:09,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:09,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:18:09,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 05:18:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:09,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:18:09,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:18:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:09,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:18:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:10,020 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:10,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293170044] [2021-10-29 05:18:10,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:10,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412384142] [2021-10-29 05:18:10,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412384142] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:18:10,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1174334690] [2021-10-29 05:18:10,048 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-10-29 05:18:10,049 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:18:10,054 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:18:10,061 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:18:10,062 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:18:10,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,137 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:10,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:18:10,142 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:10,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:18:10,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-10-29 05:18:10,184 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-10-29 05:18:10,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:18:10,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:18:10,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:18:10,235 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:18:10,251 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 05:18:10,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:18:10,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:18:10,255 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:18:10,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:10,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:10,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:18:10,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:18:10,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:18:10,400 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:18:10,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:10,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,457 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-10-29 05:18:10,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-10-29 05:18:10,470 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:18:10,471 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:322, output treesize:130 [2021-10-29 05:18:10,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-10-29 05:18:10,525 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-10-29 05:18:10,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-10-29 05:18:10,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-29 05:18:10,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-10-29 05:18:10,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-10-29 05:18:10,614 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-10-29 05:18:10,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-29 05:18:10,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:18:10,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-29 05:18:10,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-10-29 05:18:10,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-10-29 05:18:10,735 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.4 percent of original size [2021-10-29 05:18:10,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-29 05:18:10,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-10-29 05:18:10,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,790 INFO L185 QuantifierPusher]: treesize reduction 13, result has 93.2 percent of original size 177 [2021-10-29 05:18:10,800 INFO L180 QuantifierPusher]: treesize reduction 13, result has 93.5 percent of original size [2021-10-29 05:18:10,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-10-29 05:18:10,815 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.6 percent of original size [2021-10-29 05:18:10,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-10-29 05:18:10,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-10-29 05:18:10,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-29 05:18:10,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:10,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-10-29 05:18:10,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-10-29 05:18:11,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:11,319 INFO L180 QuantifierPusher]: treesize reduction 129, result has 0.8 percent of original size [2021-10-29 05:18:11,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:18:11,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-10-29 05:18:11,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-10-29 05:18:11,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,408 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,413 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-10-29 05:18:11,481 INFO L180 QuantifierPusher]: treesize reduction 156, result has 74.9 percent of original size [2021-10-29 05:18:11,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 469 [2021-10-29 05:18:11,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,548 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-10-29 05:18:11,607 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,612 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:11,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:11,614 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:11,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-10-29 05:18:11,633 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:18:15,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1174334690] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:18:15,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:18:15,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5] total 20 [2021-10-29 05:18:15,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371726133] [2021-10-29 05:18:15,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 05:18:15,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:15,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 05:18:15,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-10-29 05:18:15,778 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:16,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:16,437 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2021-10-29 05:18:16,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:18:16,438 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 05:18:16,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:16,439 INFO L225 Difference]: With dead ends: 119 [2021-10-29 05:18:16,439 INFO L226 Difference]: Without dead ends: 92 [2021-10-29 05:18:16,440 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-10-29 05:18:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-29 05:18:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 79. [2021-10-29 05:18:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 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) [2021-10-29 05:18:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2021-10-29 05:18:16,462 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 21 [2021-10-29 05:18:16,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:16,462 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2021-10-29 05:18:16,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2021-10-29 05:18:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:18:16,464 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:18:16,464 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:18:16,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:18:16,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:16,693 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-29 05:18:16,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:18:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1765479884, now seen corresponding path program 1 times [2021-10-29 05:18:16,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:18:16,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830214161] [2021-10-29 05:18:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:16,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:18:16,715 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:18:16,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765566464] [2021-10-29 05:18:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:18:16,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:16,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:18:16,718 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:18:16,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-29 05:18:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:18:16,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 05:18:16,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:18:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:17,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:18:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:18:17,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:18:17,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830214161] [2021-10-29 05:18:17,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:17,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765566464] [2021-10-29 05:18:17,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765566464] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:18:17,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1745325718] [2021-10-29 05:18:17,324 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-10-29 05:18:17,324 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:18:17,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:18:17,325 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:18:17,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:18:17,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:17,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 05:18:17,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:17,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 05:18:17,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-10-29 05:18:17,387 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 21=[|v_#valid_15|]} [2021-10-29 05:18:17,396 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 05:18:17,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:18:17,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 05:18:17,398 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:18:17,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 05:18:17,416 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:18:17,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:18:17,418 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:18:17,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:18:17,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 05:18:17,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:18:17,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 05:18:17,460 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 05:18:17,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,469 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,473 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size [2021-10-29 05:18:17,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-10-29 05:18:17,477 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:18:17,477 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:322, output treesize:130 [2021-10-29 05:18:17,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-10-29 05:18:17,494 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-10-29 05:18:17,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-10-29 05:18:17,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-10-29 05:18:17,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-29 05:18:17,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-10-29 05:18:17,542 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-10-29 05:18:17,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-29 05:18:17,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:18:17,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-29 05:18:17,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-10-29 05:18:17,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-10-29 05:18:17,617 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.0 percent of original size [2021-10-29 05:18:17,629 INFO L185 QuantifierPusher]: treesize reduction 7, result has 96.0 percent of original size 166 [2021-10-29 05:18:17,641 INFO L180 QuantifierPusher]: treesize reduction 7, result has 96.6 percent of original size [2021-10-29 05:18:17,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-10-29 05:18:17,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-10-29 05:18:17,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-10-29 05:18:17,678 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-10-29 05:18:17,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-10-29 05:18:17,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-10-29 05:18:17,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-10-29 05:18:17,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-10-29 05:18:17,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:17,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-10-29 05:18:17,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-10-29 05:18:17,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-10-29 05:18:17,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,982 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:17,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:17,987 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:17,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:17,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:17,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-10-29 05:18:18,034 INFO L180 QuantifierPusher]: treesize reduction 156, result has 74.8 percent of original size [2021-10-29 05:18:18,045 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-10-29 05:18:18,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,118 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,122 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,124 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,127 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-10-29 05:18:18,145 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:18:18,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:18:18,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-29 05:18:18,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-10-29 05:18:18,169 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:18:22,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:18:22,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:18:22,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-29 05:18:22,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67667297] [2021-10-29 05:18:22,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:18:22,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:18:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:18:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-29 05:18:22,506 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:18:23,027 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2021-10-29 05:18:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 05:18:23,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 05:18:23,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:18:23,028 INFO L225 Difference]: With dead ends: 113 [2021-10-29 05:18:23,028 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:18:23,030 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2021-10-29 05:18:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:18:23,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:18:23,030 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) [2021-10-29 05:18:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:18:23,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-29 05:18:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:18:23,031 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:18:23,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:18:23,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:18:23,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:18:23,034 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,036 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:18:23,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:18:23,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:18:23,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:18:23,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:23,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:18:24,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,809 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:18:24,809 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 37 61) no Hoare annotation was computed. [2021-10-29 05:18:24,809 INFO L853 garLoopResultBuilder]: At program point L37-3(lines 37 61) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~b~0 .cse0) (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0) .cse0) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,809 INFO L857 garLoopResultBuilder]: For program point L37-4(lines 37 61) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L853 garLoopResultBuilder]: At program point L46-3(lines 46 58) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse0)) (= (+ ULTIMATE.start_main_~r~0 .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point L46-4(lines 46 58) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,810 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~b~0 .cse0) (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0) .cse0) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,810 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,811 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 41 42) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~b~0 .cse0) (= (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0) .cse0) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,811 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,811 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse0)) (= (+ ULTIMATE.start_main_~r~0 .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,811 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,811 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse0)) (= (+ ULTIMATE.start_main_~r~0 .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,811 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,811 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 51 52) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse0)) (= (+ ULTIMATE.start_main_~r~0 .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,811 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,811 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~y~0) (<= 1 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse0)) (= (+ ULTIMATE.start_main_~r~0 .cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0)) (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~x~0)))) [2021-10-29 05:18:24,811 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-29 05:18:24,812 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-29 05:18:24,812 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,812 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,812 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,812 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,813 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,813 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,813 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,813 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-29 05:18:24,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:18:24,814 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-29 05:18:24,817 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:18:24,818 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:18:24,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:18:24 BoogieIcfgContainer [2021-10-29 05:18:24,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:18:24,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:18:24,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:18:24,843 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:18:24,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:18:06" (3/4) ... [2021-10-29 05:18:24,847 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:18:24,859 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-29 05:18:24,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 05:18:24,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:18:24,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:18:24,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:18:24,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:18:24,919 INFO L168 Benchmark]: Toolchain (without parser) took 19886.91 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 48.8 MB in the beginning and 54.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,920 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 64.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:18:24,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.68 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 80.5 MB in the end (delta: -31.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.52 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,921 INFO L168 Benchmark]: Boogie Preprocessor took 45.68 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 77.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,922 INFO L168 Benchmark]: RCFGBuilder took 564.38 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 64.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,922 INFO L168 Benchmark]: TraceAbstraction took 18839.64 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.7 MB in the beginning and 57.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 59.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,923 INFO L168 Benchmark]: Witness Printer took 75.68 ms. Allocated memory is still 125.8 MB. Free memory was 57.5 MB in the beginning and 54.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:18:24,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 64.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.68 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 80.5 MB in the end (delta: -31.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.52 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.68 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 77.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 564.38 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 64.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18839.64 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.7 MB in the beginning and 57.5 MB in the end (delta: 6.2 MB). Peak memory consumption was 59.1 MB. Max. memory is 16.1 GB. * Witness Printer took 75.68 ms. Allocated memory is still 125.8 MB. Free memory was 57.5 MB in the beginning and 54.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 175 SDtfs, 267 SDslu, 357 SDs, 0 SdLazy, 508 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 137 SyntacticMatches, 13 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=7, InterpolantAutomatonStates: 55, 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, 8 MinimizatonAttempts, 56 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 57 NumberOfFragments, 215 HoareAnnotationTreeSize, 9 FomulaSimplifications, 6847 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4376 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 774 SizeOfPredicates, 30 NumberOfNonLiveVariables, 531 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 4/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 1586, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 18, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 41, TOOLS_POST_TIME[ms]: 1077, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 41, TOOLS_QUANTIFIERELIM_TIME[ms]: 1052, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 344, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 61, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 362, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 3, DOMAIN_ISBOTTOM_APPLICATIONS: 18, DOMAIN_ISBOTTOM_TIME[ms]: 53, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 207, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 207, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 31, DAG_COMPRESSION_PROCESSED_NODES: 446, DAG_COMPRESSION_RETAINED_NODES: 70, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= y) && 1 <= r) && x == r + q * y) && r + q * y + a * y == b + x - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= y) && 1 <= r) && x == r + q * y) && r + q * y + a * y == b + x - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= y) && 1 <= r) && x == r + q * y) && r + q * y + a * y == b + x - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= y) && 1 <= r) && x == r + q * y) && r + q * y + a * y == b + x - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= y) && 1 <= r) && x == r + q * y) && r + q * y + a * y == b + x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ((1 <= cond && 1 <= y) && b == a * y) && r + q * y + a * y == b + x - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (1 <= y && b == a * y) && r + q * y + a * y == b + x - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((1 <= cond && 1 <= y) && b == a * y) && r + q * y + a * y == b + x RESULT: Ultimate proved your program to be correct! [2021-10-29 05:18:24,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfa5ab9-7b3b-4e0b-a94e-1f16fe11980a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...