./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9671c34313c5e47de5bd2f842db47c3009aa180bae8c949f2010db1179ac602f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 06:00:31,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 06:00:31,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 06:00:31,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 06:00:31,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 06:00:31,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 06:00:31,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 06:00:31,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 06:00:31,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 06:00:31,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 06:00:31,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 06:00:31,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 06:00:31,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 06:00:31,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 06:00:31,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 06:00:31,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 06:00:31,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 06:00:31,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 06:00:31,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 06:00:31,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 06:00:31,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 06:00:31,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 06:00:31,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 06:00:31,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 06:00:31,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 06:00:31,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 06:00:31,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 06:00:31,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 06:00:31,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 06:00:31,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 06:00:31,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 06:00:31,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 06:00:31,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 06:00:31,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 06:00:31,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 06:00:31,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 06:00:31,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 06:00:31,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 06:00:31,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 06:00:31,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 06:00:31,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 06:00:31,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 06:00:31,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 06:00:31,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 06:00:31,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 06:00:31,669 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 06:00:31,670 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 06:00:31,670 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 06:00:31,670 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 06:00:31,670 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 06:00:31,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 06:00:31,678 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 06:00:31,679 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 06:00:31,679 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 06:00:31,679 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 06:00:31,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 06:00:31,680 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 06:00:31,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 06:00:31,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 06:00:31,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 06:00:31,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 06:00:31,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 06:00:31,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 06:00:31,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 06:00:31,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 06:00:31,683 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 06:00:31,683 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 06:00:31,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 06:00:31,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 06:00:31,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 06:00:31,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 06:00:31,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 06:00:31,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:00:31,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 06:00:31,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 06:00:31,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 06:00:31,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 06:00:31,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 06:00:31,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 06:00:31,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 06:00:31,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 06:00:31,688 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_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9671c34313c5e47de5bd2f842db47c3009aa180bae8c949f2010db1179ac602f [2021-10-29 06:00:32,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 06:00:32,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 06:00:32,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 06:00:32,049 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 06:00:32,050 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 06:00:32,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c [2021-10-29 06:00:32,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/data/1cd752e57/1d2e07963b014bdcb2e51932096aeb55/FLAG448edfdd6 [2021-10-29 06:00:32,617 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 06:00:32,617 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c [2021-10-29 06:00:32,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/data/1cd752e57/1d2e07963b014bdcb2e51932096aeb55/FLAG448edfdd6 [2021-10-29 06:00:33,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/data/1cd752e57/1d2e07963b014bdcb2e51932096aeb55 [2021-10-29 06:00:33,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 06:00:33,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 06:00:33,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 06:00:33,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 06:00:33,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 06:00:33,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33, skipping insertion in model container [2021-10-29 06:00:33,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 06:00:33,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:00:33,256 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_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c[458,471] [2021-10-29 06:00:33,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:00:33,284 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 06:00:33,297 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_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c[458,471] [2021-10-29 06:00:33,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:00:33,324 INFO L208 MainTranslator]: Completed translation [2021-10-29 06:00:33,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33 WrapperNode [2021-10-29 06:00:33,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 06:00:33,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 06:00:33,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 06:00:33,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 06:00:33,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 06:00:33,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 06:00:33,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 06:00:33,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 06:00:33,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 06:00:33,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 06:00:33,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 06:00:33,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 06:00:33,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (1/1) ... [2021-10-29 06:00:33,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:00:33,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:00:33,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 06:00:33,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 06:00:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 06:00:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 06:00:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 06:00:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 06:00:33,999 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 06:00:33,999 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-29 06:00:34,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:00:34 BoogieIcfgContainer [2021-10-29 06:00:34,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 06:00:34,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 06:00:34,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 06:00:34,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 06:00:34,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:00:33" (1/3) ... [2021-10-29 06:00:34,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a01093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:00:34, skipping insertion in model container [2021-10-29 06:00:34,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:00:33" (2/3) ... [2021-10-29 06:00:34,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a01093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:00:34, skipping insertion in model container [2021-10-29 06:00:34,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:00:34" (3/3) ... [2021-10-29 06:00:34,012 INFO L111 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound5.c [2021-10-29 06:00:34,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 06:00:34,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 06:00:34,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 06:00:34,079 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 06:00:34,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 06:00:34,095 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) [2021-10-29 06:00:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 06:00:34,101 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:00:34,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 06:00:34,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 06:00:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:00:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash 3301933, now seen corresponding path program 1 times [2021-10-29 06:00:34,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 06:00:34,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635400386] [2021-10-29 06:00:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:34,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 06:00:34,265 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 06:00:34,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530447178] [2021-10-29 06:00:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:34,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 06:00:34,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:00:34,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 06:00:34,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 06:00:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:00:34,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 06:00:34,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:00:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:34,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:00:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:35,278 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 06:00:35,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635400386] [2021-10-29 06:00:35,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 06:00:35,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530447178] [2021-10-29 06:00:35,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530447178] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:00:35,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:00:35,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 06:00:35,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395409268] [2021-10-29 06:00:35,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 06:00:35,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 06:00:35,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 06:00:35,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 06:00:35,305 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) [2021-10-29 06:00:37,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:00:37,695 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2021-10-29 06:00:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 06:00:37,697 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 [2021-10-29 06:00:37,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:00:37,706 INFO L225 Difference]: With dead ends: 36 [2021-10-29 06:00:37,706 INFO L226 Difference]: Without dead ends: 13 [2021-10-29 06:00:37,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=18, Invalid=23, Unknown=1, NotChecked=0, Total=42 [2021-10-29 06:00:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-29 06:00:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-29 06:00:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-29 06:00:37,745 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2021-10-29 06:00:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:00:37,746 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-29 06:00:37,746 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) [2021-10-29 06:00:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-29 06:00:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 06:00:37,747 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:00:37,747 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:00:37,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 06:00:37,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-29 06:00:37,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 06:00:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:00:37,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1160044347, now seen corresponding path program 1 times [2021-10-29 06:00:37,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 06:00:37,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929745255] [2021-10-29 06:00:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:37,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 06:00:37,971 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 06:00:37,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375027117] [2021-10-29 06:00:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:37,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 06:00:37,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:00:37,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 06:00:37,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 06:00:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:00:38,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 06:00:38,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:00:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:38,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:00:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:38,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 06:00:38,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929745255] [2021-10-29 06:00:38,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 06:00:38,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375027117] [2021-10-29 06:00:38,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375027117] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 06:00:38,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [667916553] [2021-10-29 06:00:38,771 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-29 06:00:38,773 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 06:00:38,781 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 06:00:38,788 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 06:00:38,788 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 06:00:38,840 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-29 06:00:38,846 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 06:00:38,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:38,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 06:00:38,853 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 06:00:38,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:38,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 06:00:38,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-29 06:00:38,895 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_14|]} [2021-10-29 06:00:38,919 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 06:00:38,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:38,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 06:00:38,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:38,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 06:00:38,923 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 06:00:38,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:38,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:38,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:38,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 06:00:38,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:38,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 06:00:38,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:38,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 06:00:38,994 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 06:00:38,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,054 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:39,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:39,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 06:00:39,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:39,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 06:00:39,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:39,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 06:00:39,123 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 06:00:39,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,189 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:39,195 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-10-29 06:00:39,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 06:00:39,200 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 06:00:39,201 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-10-29 06:00:39,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:39,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-10-29 06:00:39,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:39,336 INFO L180 QuantifierPusher]: treesize reduction 65, result has 71.0 percent of original size [2021-10-29 06:00:39,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-10-29 06:00:39,378 INFO L180 QuantifierPusher]: treesize reduction 89, result has 71.0 percent of original size [2021-10-29 06:00:39,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-29 06:00:39,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:39,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 06:00:39,424 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 06:00:40,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 06:00:40,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 06:00:40,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-10-29 06:00:40,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940938562] [2021-10-29 06:00:40,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 06:00:40,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 06:00:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 06:00:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-29 06:00:40,814 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:41,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:00:41,509 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2021-10-29 06:00:41,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 06:00:41,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 06:00:41,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:00:41,513 INFO L225 Difference]: With dead ends: 36 [2021-10-29 06:00:41,513 INFO L226 Difference]: Without dead ends: 22 [2021-10-29 06:00:41,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2021-10-29 06:00:41,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-29 06:00:41,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-29 06:00:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-10-29 06:00:41,523 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 12 [2021-10-29 06:00:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:00:41,523 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-10-29 06:00:41,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-10-29 06:00:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 06:00:41,525 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:00:41,525 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:00:41,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 06:00:41,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 06:00:41,744 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 06:00:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:00:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1362449055, now seen corresponding path program 2 times [2021-10-29 06:00:41,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 06:00:41,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157242556] [2021-10-29 06:00:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:41,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 06:00:41,768 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 06:00:41,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720502761] [2021-10-29 06:00:41,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 06:00:41,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 06:00:41,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:00:41,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 06:00:41,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 06:00:42,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-29 06:00:42,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 06:00:42,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-29 06:00:42,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:00:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:42,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:00:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:43,373 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 06:00:43,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157242556] [2021-10-29 06:00:43,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 06:00:43,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720502761] [2021-10-29 06:00:43,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720502761] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 06:00:43,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [665849657] [2021-10-29 06:00:43,381 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-29 06:00:43,381 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 06:00:43,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 06:00:43,382 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 06:00:43,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 06:00:43,404 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-29 06:00:43,406 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 06:00:43,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-29 06:00:43,414 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 06:00:43,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-29 06:00:43,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-10-29 06:00:43,430 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 21=[|v_#valid_15|]} [2021-10-29 06:00:43,441 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-29 06:00:43,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 06:00:43,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-29 06:00:43,445 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 06:00:43,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-29 06:00:43,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 06:00:43,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 06:00:43,473 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 06:00:43,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 06:00:43,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-10-29 06:00:43,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 06:00:43,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-29 06:00:43,517 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-29 06:00:43,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,538 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,554 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-10-29 06:00:43,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-10-29 06:00:43,556 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 06:00:43,557 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:290, output treesize:116 [2021-10-29 06:00:43,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,567 INFO L185 QuantifierPusher]: treesize reduction 6, result has 95.6 percent of original size 131 [2021-10-29 06:00:43,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,714 INFO L180 QuantifierPusher]: treesize reduction 29, result has 93.1 percent of original size [2021-10-29 06:00:43,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-10-29 06:00:43,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 515 [2021-10-29 06:00:43,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:43,885 INFO L180 QuantifierPusher]: treesize reduction 65, result has 71.0 percent of original size [2021-10-29 06:00:43,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-10-29 06:00:43,910 INFO L180 QuantifierPusher]: treesize reduction 89, result has 71.0 percent of original size [2021-10-29 06:00:43,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-29 06:00:43,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 06:00:43,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 06:00:43,944 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 06:00:45,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 06:00:45,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 06:00:45,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-10-29 06:00:45,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257145554] [2021-10-29 06:00:45,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 06:00:45,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 06:00:45,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 06:00:45,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-10-29 06:00:45,293 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:00:46,906 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2021-10-29 06:00:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-29 06:00:46,907 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 06:00:46,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:00:46,909 INFO L225 Difference]: With dead ends: 54 [2021-10-29 06:00:46,909 INFO L226 Difference]: Without dead ends: 40 [2021-10-29 06:00:46,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2021-10-29 06:00:46,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-29 06:00:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-29 06:00:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-10-29 06:00:46,930 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 21 [2021-10-29 06:00:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:00:46,930 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-10-29 06:00:46,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-10-29 06:00:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 06:00:46,932 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:00:46,932 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:00:46,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-29 06:00:47,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-29 06:00:47,133 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 06:00:47,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:00:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1244549663, now seen corresponding path program 3 times [2021-10-29 06:00:47,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 06:00:47,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716786957] [2021-10-29 06:00:47,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:00:47,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 06:00:47,152 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 06:00:47,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302006743] [2021-10-29 06:00:47,152 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-29 06:00:47,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 06:00:47,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:00:47,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 06:00:47,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 06:00:47,288 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-29 06:00:47,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 06:00:47,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 06:00:47,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:00:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:47,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:00:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:00:48,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 06:00:48,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716786957] [2021-10-29 06:00:48,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 06:00:48,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302006743] [2021-10-29 06:00:48,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302006743] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:00:48,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:00:48,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 21 [2021-10-29 06:00:48,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294005829] [2021-10-29 06:00:48,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 06:00:48,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 06:00:48,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 06:00:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=246, Unknown=0, NotChecked=0, Total=462 [2021-10-29 06:00:48,172 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:48,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:00:48,202 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2021-10-29 06:00:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 06:00:48,203 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 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 39 [2021-10-29 06:00:48,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:00:48,203 INFO L225 Difference]: With dead ends: 40 [2021-10-29 06:00:48,203 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 06:00:48,204 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=246, Unknown=0, NotChecked=0, Total=462 [2021-10-29 06:00:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 06:00:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 06:00:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 06:00:48,205 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-10-29 06:00:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:00:48,205 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 06:00:48,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 06:00:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 06:00:48,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 06:00:48,207 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 06:00:48,208 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 06:00:48,208 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 06:00:48,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 06:00:48,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-29 06:00:48,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 06:00:48,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:48,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:48,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:48,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 06:00:49,998 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-29 06:00:49,998 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-29 06:00:49,999 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-29 06:00:49,999 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2021-10-29 06:00:49,999 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 06:00:49,999 INFO L853 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse6 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (let ((.cse3 (<= 0 ULTIMATE.start_main_~k~0)) (.cse0 (= (+ (* 6 (* 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)) (* 5 (* 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 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (+ .cse6 (* 12 ULTIMATE.start_main_~x~0)))) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (or (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse6) (< ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~k~0))) (.cse5 (forall ((ULTIMATE.start_main_~k~0 Int)) (or (< (+ ULTIMATE.start_main_~c~0 4) ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~c~0 3)) (= (+ 16 (* 8 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) (* 4 ULTIMATE.start_main_~k~0)))))) (.cse2 (<= ULTIMATE.start_main_~k~0 5))) (or (and .cse0 .cse1 (< ULTIMATE.start_main_~c~0 (+ ULTIMATE.start_main_~k~0 1)) (= ULTIMATE.start_main_~y~0 1) .cse2 (= ULTIMATE.start_main_~c~0 1)) (and (= ULTIMATE.start_main_~y~0 0) .cse3 (= ULTIMATE.start_main_~x~0 0) .cse2 (= ULTIMATE.start_main_~c~0 0)) (and .cse0 .cse1 .cse4 (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))) .cse2 (= ULTIMATE.start_main_~y~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_main_~y~0 3) .cse4 .cse2 (= ULTIMATE.start_main_~c~0 3)) (and .cse0 (< 3 ULTIMATE.start_main_~k~0) .cse1 .cse5 .cse2 (= ULTIMATE.start_main_~y~0 4)) (and .cse3 .cse0 (<= 5 ULTIMATE.start_main_~c~0) .cse1 .cse4 .cse5 .cse2)))) [2021-10-29 06:00:49,999 INFO L857 garLoopResultBuilder]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2021-10-29 06:00:49,999 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-29 06:00:49,999 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 06:00:50,000 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-29 06:00:50,000 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-29 06:00:50,000 INFO L853 garLoopResultBuilder]: At program point L10-2(lines 31 32) the Hoare annotation is: (let ((.cse6 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (let ((.cse4 (<= 0 ULTIMATE.start_main_~k~0)) (.cse0 (= (+ (* 6 (* 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)) (* 5 (* 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 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (+ .cse6 (* 12 ULTIMATE.start_main_~x~0)))) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (or (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse6) (< ULTIMATE.start_main_~c~0 ULTIMATE.start_main_~k~0))) (.cse5 (forall ((ULTIMATE.start_main_~k~0 Int)) (or (< (+ ULTIMATE.start_main_~c~0 4) ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~k~0 (+ ULTIMATE.start_main_~c~0 3)) (= (+ 16 (* 8 ULTIMATE.start_main_~y~0) (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) (* 4 ULTIMATE.start_main_~k~0)))))) (.cse2 (<= ULTIMATE.start_main_~k~0 5))) (or (and .cse0 .cse1 (< ULTIMATE.start_main_~c~0 (+ ULTIMATE.start_main_~k~0 1)) (= ULTIMATE.start_main_~y~0 1) .cse2 (= ULTIMATE.start_main_~c~0 1)) (and .cse0 .cse1 .cse3 (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))) .cse2 (= ULTIMATE.start_main_~y~0 2)) (and .cse0 .cse1 (= ULTIMATE.start_main_~y~0 3) .cse3 .cse2 (= ULTIMATE.start_main_~c~0 3)) (and (= ULTIMATE.start_main_~y~0 0) .cse4 (= ULTIMATE.start_main_~x~0 0) .cse1 .cse2 (= ULTIMATE.start_main_~c~0 0)) (and .cse0 (< 3 ULTIMATE.start_main_~k~0) .cse1 .cse5 .cse2 (= ULTIMATE.start_main_~y~0 4)) (and .cse4 .cse0 (<= 5 ULTIMATE.start_main_~c~0) .cse1 .cse3 .cse5 .cse2)))) [2021-10-29 06:00:50,000 INFO L857 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-29 06:00:50,000 INFO L853 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (= (+ (* 6 (* 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)) (* 5 (* 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 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (+ .cse0 (* 12 ULTIMATE.start_main_~x~0))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~k~0) .cse0))) [2021-10-29 06:00:50,001 INFO L857 garLoopResultBuilder]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2021-10-29 06:00:50,001 INFO L853 garLoopResultBuilder]: At program point L10-8(lines 9 15) the Hoare annotation is: (= (+ (* 6 (* 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)) (* 5 (* 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 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) (* 12 ULTIMATE.start_main_~x~0))) [2021-10-29 06:00:50,004 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1] [2021-10-29 06:00:50,006 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 06:00:50,015 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,016 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,017 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,017 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,017 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,018 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,042 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,043 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,043 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,043 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,043 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,044 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,044 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,044 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,044 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,044 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,053 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,054 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,059 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,060 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,061 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:00:50 BoogieIcfgContainer [2021-10-29 06:00:50,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 06:00:50,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 06:00:50,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 06:00:50,069 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 06:00:50,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:00:34" (3/4) ... [2021-10-29 06:00:50,073 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 06:00:50,083 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-29 06:00:50,084 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 06:00:50,084 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 06:00:50,084 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 06:00:50,132 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 06:00:50,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 06:00:50,134 INFO L168 Benchmark]: Toolchain (without parser) took 17091.10 ms. Allocated memory was 79.7 MB in the beginning and 125.8 MB in the end (delta: 46.1 MB). Free memory was 43.6 MB in the beginning and 96.3 MB in the end (delta: -52.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:00:50,134 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 59.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:00:50,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.76 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 43.3 MB in the beginning and 80.6 MB in the end (delta: -37.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:50,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.11 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 79.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:00:50,136 INFO L168 Benchmark]: Boogie Preprocessor took 52.94 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:50,136 INFO L168 Benchmark]: RCFGBuilder took 565.88 ms. Allocated memory is still 104.9 MB. Free memory was 77.9 MB in the beginning and 65.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:50,137 INFO L168 Benchmark]: TraceAbstraction took 16063.33 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.8 MB in the beginning and 99.5 MB in the end (delta: -34.7 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:50,137 INFO L168 Benchmark]: Witness Printer took 64.67 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 96.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:00:50,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 59.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.76 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 43.3 MB in the beginning and 80.6 MB in the end (delta: -37.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.11 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 79.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.94 ms. Allocated memory is still 104.9 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 565.88 ms. Allocated memory is still 104.9 MB. Free memory was 77.9 MB in the beginning and 65.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16063.33 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.8 MB in the beginning and 99.5 MB in the end (delta: -34.7 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.67 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 96.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.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] - 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 15.9s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 134 SDslu, 99 SDs, 0 SdLazy, 204 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 115 SyntacticMatches, 7 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 25 NumberOfFragments, 804 HoareAnnotationTreeSize, 4 FomulaSimplifications, 338 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 434 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 144 ConstructedInterpolants, 6 QuantifiedInterpolants, 1277 SizeOfPredicates, 13 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 330/396 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: 31]: Loop Invariant [2021-10-29 06:00:50,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,159 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((((((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && c < k + 1) && y == 1) && k <= 5) && c == 1) || (((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && (y * k == y * y || c < k)) && (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)) && k <= 5) && y == 2)) || (((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && y == 3) && (y * k == y * y || c < k)) && k <= 5) && c == 3)) || (((((y == 0 && 0 <= k) && x == 0) && 1 <= cond) && k <= 5) && c == 0)) || (((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 3 < k) && 1 <= cond) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 4 < ULTIMATE.start_main_~k~0 || ULTIMATE.start_main_~k~0 <= c + 3) || 16 + 8 * y + y * y == y * ULTIMATE.start_main_~k~0 + 4 * ULTIMATE.start_main_~k~0)) && k <= 5) && y == 4)) || ((((((0 <= k && 6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x) && 5 <= c) && 1 <= cond) && (y * k == y * y || c < k)) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 4 < ULTIMATE.start_main_~k~0 || ULTIMATE.start_main_~k~0 <= c + 3) || 16 + 8 * y + y * y == y * ULTIMATE.start_main_~k~0 + 4 * ULTIMATE.start_main_~k~0)) && k <= 5) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x - InvariantResult [Line: 28]: Loop Invariant [2021-10-29 06:00:50,162 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,166 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,166 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,166 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,166 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,167 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,168 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] [2021-10-29 06:00:50,168 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~k~0,QUANTIFIED] Derived loop invariant: (((((((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && c < k + 1) && y == 1) && k <= 5) && c == 1) || ((((y == 0 && 0 <= k) && x == 0) && k <= 5) && c == 0)) || (((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && (y * k == y * y || c < k)) && (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)) && k <= 5) && y == 2)) || (((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && y == 3) && (y * k == y * y || c < k)) && k <= 5) && c == 3)) || (((((6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 3 < k) && 1 <= cond) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 4 < ULTIMATE.start_main_~k~0 || ULTIMATE.start_main_~k~0 <= c + 3) || 16 + 8 * y + y * y == y * ULTIMATE.start_main_~k~0 + 4 * ULTIMATE.start_main_~k~0)) && k <= 5) && y == 4)) || ((((((0 <= k && 6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x) && 5 <= c) && 1 <= cond) && (y * k == y * y || c < k)) && (forall ULTIMATE.start_main_~k~0 : int :: (c + 4 < ULTIMATE.start_main_~k~0 || ULTIMATE.start_main_~k~0 <= c + 3) || 16 + 8 * y + y * y == y * ULTIMATE.start_main_~k~0 + 4 * ULTIMATE.start_main_~k~0)) && k <= 5) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (6 * (y * y * y * y * y) + 5 * (y * y * y * y) + 2 * (y * y * y * y * y * y) == y * y + 12 * x && 1 <= cond) && y * k == y * y RESULT: Ultimate proved your program to be correct! [2021-10-29 06:00:50,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f635976-bddb-4ce5-8a2c-0f41a29db7c1/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...