./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE --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 68d290aa6e6a124b20d02df1a641bd7e739f143db7416cdcc7b7048aed53c326 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:32:18,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:32:18,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:32:18,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:32:18,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:32:18,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:32:18,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:32:18,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:32:18,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:32:18,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:32:18,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:32:18,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:32:18,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:32:18,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:32:18,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:32:18,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:32:18,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:32:18,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:32:18,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:32:18,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:32:18,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:32:18,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:32:18,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:32:18,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:32:18,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:32:18,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:32:18,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:32:18,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:32:18,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:32:18,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:32:18,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:32:18,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:32:18,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:32:18,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:32:18,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:32:18,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:32:18,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:32:18,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:32:18,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:32:18,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:32:18,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:32:18,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:32:18,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:32:18,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:32:18,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:32:18,422 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:32:18,422 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:32:18,422 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:32:18,423 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:32:18,423 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:32:18,430 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:32:18,430 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:32:18,430 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:32:18,430 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:32:18,431 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:32:18,431 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:32:18,431 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:32:18,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:32:18,432 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:32:18,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:32:18,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:32:18,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:32:18,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:32:18,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:32:18,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:32:18,434 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:32:18,434 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:32:18,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:32:18,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:32:18,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:32:18,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:32:18,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:32:18,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:32:18,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:32:18,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:32:18,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:32:18,437 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:32:18,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:32:18,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:32:18,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:32:18,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:32:18,438 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_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68d290aa6e6a124b20d02df1a641bd7e739f143db7416cdcc7b7048aed53c326 [2021-10-24 10:32:18,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:32:18,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:32:18,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:32:18,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:32:18,817 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:32:18,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c [2021-10-24 10:32:18,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/data/aa06a6463/ea91e4cc534249fb905c097a6b1b4c60/FLAG4771b24db [2021-10-24 10:32:19,508 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:32:19,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c [2021-10-24 10:32:19,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/data/aa06a6463/ea91e4cc534249fb905c097a6b1b4c60/FLAG4771b24db [2021-10-24 10:32:19,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/data/aa06a6463/ea91e4cc534249fb905c097a6b1b4c60 [2021-10-24 10:32:19,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:32:19,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:32:19,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:32:19,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:32:19,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:32:19,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:32:19" (1/1) ... [2021-10-24 10:32:19,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a66a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:19, skipping insertion in model container [2021-10-24 10:32:19,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:32:19" (1/1) ... [2021-10-24 10:32:19,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:32:19,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:32:20,185 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_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c[458,471] [2021-10-24 10:32:20,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:32:20,252 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:32:20,270 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_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c[458,471] [2021-10-24 10:32:20,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:32:20,312 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:32:20,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20 WrapperNode [2021-10-24 10:32:20,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:32:20,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:32:20,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:32:20,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:32:20,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:32:20,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:32:20,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:32:20,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:32:20,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:32:20,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:32:20,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:32:20,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:32:20,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (1/1) ... [2021-10-24 10:32:20,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:32:20,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:32:20,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:32:20,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:32:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:32:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:32:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:32:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:32:20,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:32:20,898 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-24 10:32:20,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:32:20 BoogieIcfgContainer [2021-10-24 10:32:20,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:32:20,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:32:20,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:32:20,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:32:20,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:32:19" (1/3) ... [2021-10-24 10:32:20,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccc2611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:32:20, skipping insertion in model container [2021-10-24 10:32:20,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:32:20" (2/3) ... [2021-10-24 10:32:20,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccc2611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:32:20, skipping insertion in model container [2021-10-24 10:32:20,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:32:20" (3/3) ... [2021-10-24 10:32:20,922 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound2.c [2021-10-24 10:32:20,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:32:20,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:32:21,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:32:21,009 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 [2021-10-24 10:32:21,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:32:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 15 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) [2021-10-24 10:32:21,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 10:32:21,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:32:21,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 10:32:21,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:32:21,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:32:21,041 INFO L82 PathProgramCache]: Analyzing trace with hash 2997072, now seen corresponding path program 1 times [2021-10-24 10:32:21,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:32:21,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582483763] [2021-10-24 10:32:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:32:21,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:32:21,180 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-24 10:32:21,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114280372] [2021-10-24 10:32:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:32:21,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:32:21,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:32:21,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:32:21,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:32:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:32:21,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:32:21,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:32:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:32:21,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:32:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:32:22,357 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:32:22,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582483763] [2021-10-24 10:32:22,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:32:22,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114280372] [2021-10-24 10:32:22,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114280372] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:32:22,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:32:22,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:32:22,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399587538] [2021-10-24 10:32:22,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:32:22,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:32:22,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:32:22,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:32:22,391 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 15 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) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2021-10-24 10:32:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:32:22,638 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2021-10-24 10:32:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:32:22,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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 4 [2021-10-24 10:32:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:32:22,660 INFO L225 Difference]: With dead ends: 36 [2021-10-24 10:32:22,660 INFO L226 Difference]: Without dead ends: 11 [2021-10-24 10:32:22,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 956.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:32:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-24 10:32:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-24 10:32:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:32:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-24 10:32:22,701 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2021-10-24 10:32:22,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:32:22,701 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-24 10:32:22,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2021-10-24 10:32:22,702 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-24 10:32:22,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:32:22,703 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:32:22,703 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-24 10:32:22,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:32:22,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-24 10:32:22,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:32:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:32:22,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1480619493, now seen corresponding path program 1 times [2021-10-24 10:32:22,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:32:22,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515804420] [2021-10-24 10:32:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:32:22,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:32:22,963 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-24 10:32:22,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574937638] [2021-10-24 10:32:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:32:22,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:32:22,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:32:22,965 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:32:22,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-24 10:32:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:32:23,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-24 10:32:23,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:32:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:32:23,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:32:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:32:23,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:32:23,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515804420] [2021-10-24 10:32:23,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:32:23,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574937638] [2021-10-24 10:32:23,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574937638] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:32:23,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [941184693] [2021-10-24 10:32:23,821 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-24 10:32:23,824 INFO L166 IcfgInterpreter]: Building call graph [2021-10-24 10:32:23,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-24 10:32:23,840 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-24 10:32:23,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-24 10:32:23,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:23,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:32:23,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:23,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-24 10:32:23,899 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-24 10:32:23,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:23,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-24 10:32:23,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-24 10:32:23,959 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-10-24 10:32:23,977 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-24 10:32:23,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:23,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:32:23,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:23,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:32:23,980 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-24 10:32:23,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:23,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:23,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,016 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 [2021-10-24 10:32:24,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:32:24,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-24 10:32:24,020 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-24 10:32:24,032 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-24 10:32:24,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:32:24,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-24 10:32:24,035 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-24 10:32:24,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:32:24,154 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 [2021-10-24 10:32:24,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:32:24,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-24 10:32:24,166 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-24 10:32:24,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,225 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,229 INFO L180 QuantifierPusher]: treesize reduction 8, result has 93.5 percent of original size [2021-10-24 10:32:24,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-24 10:32:24,235 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-24 10:32:24,236 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:444, output treesize:116 [2021-10-24 10:32:24,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:32:24,278 INFO L185 QuantifierPusher]: treesize reduction 12, result has 92.9 percent of original size 156 [2021-10-24 10:32:24,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:24,412 INFO L180 QuantifierPusher]: treesize reduction 57, result has 69.4 percent of original size [2021-10-24 10:32:24,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-24 10:32:24,445 INFO L180 QuantifierPusher]: treesize reduction 65, result has 68.0 percent of original size [2021-10-24 10:32:24,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-10-24 10:32:24,462 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-24 10:32:25,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:32:25,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 10:32:25,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-24 10:32:25,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945859341] [2021-10-24 10:32:25,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 10:32:25,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:32:25,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 10:32:25,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-24 10:32:25,665 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:32:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:32:26,434 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-10-24 10:32:26,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 10:32:26,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:32:26,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:32:26,437 INFO L225 Difference]: With dead ends: 28 [2021-10-24 10:32:26,437 INFO L226 Difference]: Without dead ends: 20 [2021-10-24 10:32:26,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1920.5ms TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-10-24 10:32:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-24 10:32:26,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-24 10:32:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 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) [2021-10-24 10:32:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-10-24 10:32:26,447 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2021-10-24 10:32:26,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:32:26,448 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-10-24 10:32:26,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:32:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-10-24 10:32:26,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:32:26,449 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:32:26,449 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2021-10-24 10:32:26,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:32:26,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:32:26,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:32:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:32:26,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2122995756, now seen corresponding path program 2 times [2021-10-24 10:32:26,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:32:26,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027029832] [2021-10-24 10:32:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:32:26,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:32:26,696 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-24 10:32:26,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53233028] [2021-10-24 10:32:26,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 10:32:26,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:32:26,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:32:26,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:32:26,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-24 10:32:26,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-24 10:32:26,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 10:32:26,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-24 10:32:26,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:32:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:32:27,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:32:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:32:27,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:32:27,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027029832] [2021-10-24 10:32:27,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:32:27,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53233028] [2021-10-24 10:32:27,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53233028] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:32:27,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:32:27,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-24 10:32:27,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816447443] [2021-10-24 10:32:27,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 10:32:27,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:32:27,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 10:32:27,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:32:27,208 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:32:27,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:32:27,231 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-24 10:32:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:32:27,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:32:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:32:27,232 INFO L225 Difference]: With dead ends: 20 [2021-10-24 10:32:27,232 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:32:27,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 78.6ms TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:32:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:32:27,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:32:27,233 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) [2021-10-24 10:32:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:32:27,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-24 10:32:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:32:27,234 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:32:27,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:32:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:32:27,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:32:27,237 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:32:27,238 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:32:27,238 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:32:27,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:32:27,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-24 10:32:27,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:32:27,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:27,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:27,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:27,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:32:28,362 INFO L853 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse5 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (let ((.cse4 (<= 0 ULTIMATE.start_main_~k~0)) (.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (<= ULTIMATE.start_main_~k~0 2)) (.cse2 (forall ((ULTIMATE.start_main_~k~0 Int)) (or (< (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~k~0) (= (+ (* 2 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 1) (+ ULTIMATE.start_main_~k~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~c~0)))) (.cse3 (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) .cse5 (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (* 4 ULTIMATE.start_main_~x~0)))) (or (and (< 0 ULTIMATE.start_main_~k~0) .cse0 .cse1 (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3) (and (= ULTIMATE.start_main_~y~0 0) .cse4 (= ULTIMATE.start_main_~x~0 0) .cse1 (= ULTIMATE.start_main_~c~0 0)) (and .cse4 .cse0 (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse5) .cse1 .cse2 .cse3)))) [2021-10-24 10:32:28,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-24 10:32:28,362 INFO L857 garLoopResultBuilder]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2021-10-24 10:32:28,362 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-24 10:32:28,362 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-24 10:32:28,363 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2021-10-24 10:32:28,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:32:28,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-24 10:32:28,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:32:28,363 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-24 10:32:28,363 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-24 10:32:28,364 INFO L853 garLoopResultBuilder]: At program point L10-2(lines 30 31) the Hoare annotation is: (let ((.cse4 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (<= ULTIMATE.start_main_~k~0 2)) (.cse2 (forall ((ULTIMATE.start_main_~k~0 Int)) (or (< (+ ULTIMATE.start_main_~c~0 1) ULTIMATE.start_main_~k~0) (= (+ (* 2 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 1) (+ ULTIMATE.start_main_~k~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~c~0)))) (.cse3 (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) .cse4 (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (* 4 ULTIMATE.start_main_~x~0)))) (or (and (< 0 ULTIMATE.start_main_~k~0) .cse0 .cse1 (= ULTIMATE.start_main_~y~0 1) .cse2 .cse3) (and (<= 0 ULTIMATE.start_main_~k~0) .cse0 (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse4) .cse1 .cse2 .cse3)))) [2021-10-24 10:32:28,364 INFO L857 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-24 10:32:28,364 INFO L853 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (* 4 ULTIMATE.start_main_~x~0)) [2021-10-24 10:32:28,364 INFO L857 garLoopResultBuilder]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2021-10-24 10:32:28,365 INFO L853 garLoopResultBuilder]: At program point L10-8(lines 9 15) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (* 4 ULTIMATE.start_main_~x~0))) [2021-10-24 10:32:28,370 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:32:28,378 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,379 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,379 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,379 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,389 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,390 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,390 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,390 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,390 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,390 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,391 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:32:28 BoogieIcfgContainer [2021-10-24 10:32:28,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:32:28,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:32:28,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:32:28,402 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:32:28,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:32:20" (3/4) ... [2021-10-24 10:32:28,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:32:28,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-24 10:32:28,418 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 10:32:28,418 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 10:32:28,418 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:32:28,477 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:32:28,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:32:28,479 INFO L168 Benchmark]: Toolchain (without parser) took 8598.86 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 55.1 MB in the beginning and 77.8 MB in the end (delta: -22.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:32:28,480 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:32:28,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.19 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 72.1 MB in the end (delta: -17.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:32:28,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.21 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 70.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:32:28,482 INFO L168 Benchmark]: Boogie Preprocessor took 44.53 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.6 MB in the end (delta: 754.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:32:28,488 INFO L168 Benchmark]: RCFGBuilder took 492.56 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 57.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:32:28,489 INFO L168 Benchmark]: TraceAbstraction took 7498.30 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 57.1 MB in the beginning and 81.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:32:28,490 INFO L168 Benchmark]: Witness Printer took 75.90 ms. Allocated memory is still 142.6 MB. Free memory was 79.9 MB in the beginning and 77.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:32:28,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.19 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 72.1 MB in the end (delta: -17.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.21 ms. Allocated memory is still 96.5 MB. Free memory was 72.1 MB in the beginning and 70.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.53 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.6 MB in the end (delta: 754.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 492.56 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 57.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7498.30 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 57.1 MB in the beginning and 81.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.90 ms. Allocated memory is still 142.6 MB. Free memory was 79.9 MB in the beginning and 77.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: 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, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7369.5ms, OverallIterations: 3, TraceHistogramMax: 5, EmptinessCheckTime: 10.7ms, AutomataDifference: 1092.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 899.0ms, InitialAbstractionConstructionTime: 13.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 17 SDtfs, 36 SDslu, 34 SDs, 0 SdLazy, 67 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 223.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2955.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 292 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 18.5ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 73 FormulaSimplificationTreeSizeReductionInter, 872.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 38.6ms SsaConstructionTime, 94.8ms SatisfiabilityAnalysisTime, 2194.6ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 3 QuantifiedInterpolants, 401 SizeOfPredicates, 10 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 60/66 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2021-10-24 10:32:28,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((((0 < k && 1 <= cond) && k <= 2) && y == 1) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) && y * y * y * y + y * y + 2 * (y * y * y) == 4 * x) || (((((0 <= k && 1 <= cond) && y * k == y * y) && k <= 2) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) && y * y * y * y + y * y + 2 * (y * y * y) == 4 * x) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 <= cond && y * y * y * y + y * y + 2 * (y * y * y) == 4 * x - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: y * y * y * y + y * y + 2 * (y * y * y) == 4 * x - InvariantResult [Line: 27]: Loop Invariant [2021-10-24 10:32:28,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,533 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,533 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,533 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-24 10:32:28,535 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: ((((((0 < k && 1 <= cond) && k <= 2) && y == 1) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) && y * y * y * y + y * y + 2 * (y * y * y) == 4 * x) || ((((y == 0 && 0 <= k) && x == 0) && k <= 2) && c == 0)) || (((((0 <= k && 1 <= cond) && y * k == y * y) && k <= 2) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 1 < ULTIMATE.start_main_~k~0 || 2 * y + y * y + 1 == ULTIMATE.start_main_~k~0 + y * ULTIMATE.start_main_~k~0) || ULTIMATE.start_main_~k~0 <= c)) && y * y * y * y + y * y + 2 * (y * y * y) == 4 * x) RESULT: Ultimate proved your program to be correct! [2021-10-24 10:32:28,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a2ee330-e45f-4d07-8a36-046c7d6a0a80/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...