./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/ps3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:25:17,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:25:17,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:25:17,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:25:17,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:25:17,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:25:17,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:25:17,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:25:17,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:25:17,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:25:17,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:25:17,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:25:17,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:25:17,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:25:17,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:25:17,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:25:17,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:25:17,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:25:17,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:25:17,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:25:17,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:25:17,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:25:17,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:25:17,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:25:17,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:25:17,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:25:17,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:25:17,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:25:17,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:25:17,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:25:17,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:25:17,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:25:17,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:25:17,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:25:17,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:25:17,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:25:17,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:25:17,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:25:17,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:25:17,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:25:17,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:25:17,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:25:17,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:25:17,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:25:17,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:25:17,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:25:17,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:25:17,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:25:17,598 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:25:17,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:25:17,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:25:17,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:25:17,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:25:17,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:25:17,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:25:17,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:25:17,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:25:17,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:25:17,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:25:17,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:25:17,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:25:17,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:25:17,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:25:17,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:25:17,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:25:17,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:25:17,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:25:17,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:25:17,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:25:17,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:25:17,608 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:25:17,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:25:17,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:25:17,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:25:17,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9 [2021-11-23 12:25:17,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:25:18,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:25:18,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:25:18,046 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:25:18,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:25:18,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/nla-digbench/ps3-ll.c [2021-11-23 12:25:18,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/data/636c3ce85/148f9a2cd40d49ac8245e488b33f26fa/FLAG46d8e664e [2021-11-23 12:25:18,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:25:18,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/sv-benchmarks/c/nla-digbench/ps3-ll.c [2021-11-23 12:25:18,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/data/636c3ce85/148f9a2cd40d49ac8245e488b33f26fa/FLAG46d8e664e [2021-11-23 12:25:19,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/data/636c3ce85/148f9a2cd40d49ac8245e488b33f26fa [2021-11-23 12:25:19,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:25:19,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:25:19,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:25:19,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:25:19,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:25:19,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bca059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19, skipping insertion in model container [2021-11-23 12:25:19,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:25:19,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:25:19,477 WARN L230 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_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/sv-benchmarks/c/nla-digbench/ps3-ll.c[458,471] [2021-11-23 12:25:19,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:25:19,502 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:25:19,517 WARN L230 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_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/sv-benchmarks/c/nla-digbench/ps3-ll.c[458,471] [2021-11-23 12:25:19,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:25:19,540 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:25:19,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19 WrapperNode [2021-11-23 12:25:19,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:25:19,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:25:19,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:25:19,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:25:19,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,580 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2021-11-23 12:25:19,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:25:19,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:25:19,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:25:19,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:25:19,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:25:19,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:25:19,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:25:19,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:25:19,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (1/1) ... [2021-11-23 12:25:19,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:25:19,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:25:19,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:25:19,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:25:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:25:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:25:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:25:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:25:19,779 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:25:19,782 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:25:19,981 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:25:19,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:25:19,988 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 12:25:19,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:25:19 BoogieIcfgContainer [2021-11-23 12:25:19,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:25:19,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:25:19,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:25:19,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:25:19,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:25:19" (1/3) ... [2021-11-23 12:25:19,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8a178c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:25:19, skipping insertion in model container [2021-11-23 12:25:19,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:25:19" (2/3) ... [2021-11-23 12:25:19,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8a178c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:25:19, skipping insertion in model container [2021-11-23 12:25:19,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:25:19" (3/3) ... [2021-11-23 12:25:20,001 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll.c [2021-11-23 12:25:20,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:25:20,008 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 12:25:20,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:25:20,077 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=PETRI_NET, 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 [2021-11-23 12:25:20,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 12:25:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.5384615384615385) 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) [2021-11-23 12:25:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 12:25:20,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:25:20,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 12:25:20,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:25:20,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:25:20,110 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-11-23 12:25:20,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:25:20,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008873716] [2021-11-23 12:25:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:25:20,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:25:20,240 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:25:20,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859266744] [2021-11-23 12:25:20,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:25:20,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:25:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:25:20,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:25:20,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 12:25:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:25:20,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 12:25:20,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:25:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:25:20,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:25:20,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:25:20,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008873716] [2021-11-23 12:25:20,660 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:25:20,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859266744] [2021-11-23 12:25:20,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859266744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:25:20,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:25:20,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:25:20,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375718195] [2021-11-23 12:25:20,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:25:20,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:25:20,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:25:20,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:25:20,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:25:20,721 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.5384615384615385) 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:25:20,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:25:20,956 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2021-11-23 12:25:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:25:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-23 12:25:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:25:20,982 INFO L225 Difference]: With dead ends: 41 [2021-11-23 12:25:20,982 INFO L226 Difference]: Without dead ends: 17 [2021-11-23 12:25:20,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:25:20,991 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:25:20,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:25:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-23 12:25:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-23 12:25:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:25:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-23 12:25:21,041 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2021-11-23 12:25:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:25:21,041 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-23 12:25:21,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:25:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-23 12:25:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 12:25:21,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:25:21,045 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:25:21,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:25:21,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-23 12:25:21,264 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:25:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:25:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash 731832477, now seen corresponding path program 1 times [2021-11-23 12:25:21,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:25:21,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751663983] [2021-11-23 12:25:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:25:21,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:25:21,279 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:25:21,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203435313] [2021-11-23 12:25:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:25:21,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:25:21,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:25:21,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:25:21,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 12:25:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:25:21,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 12:25:21,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:25:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:25:21,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:25:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:25:21,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:25:21,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751663983] [2021-11-23 12:25:21,750 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:25:21,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203435313] [2021-11-23 12:25:21,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203435313] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:25:21,751 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 12:25:21,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-11-23 12:25:21,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264928046] [2021-11-23 12:25:21,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 12:25:21,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:25:21,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:25:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:25:21,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:25:21,755 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-23 12:25:21,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:25:21,888 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-11-23 12:25:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:25:21,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 9 [2021-11-23 12:25:21,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:25:21,889 INFO L225 Difference]: With dead ends: 22 [2021-11-23 12:25:21,889 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 12:25:21,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 12:25:21,892 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:25:21,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 13 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:25:21,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 12:25:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 12:25:21,895 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) [2021-11-23 12:25:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 12:25:21,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-23 12:25:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:25:21,896 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 12:25:21,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-11-23 12:25:21,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 12:25:21,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 12:25:21,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-23 12:25:21,901 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-23 12:25:21,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 12:25:22,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:25:22,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 12:25:22,251 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 12:25:22,251 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 30) no Hoare annotation was computed. [2021-11-23 12:25:22,252 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-11-23 12:25:22,252 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-11-23 12:25:22,252 INFO L858 garLoopResultBuilder]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-11-23 12:25:22,253 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 12:25:22,253 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 12:25:22,253 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 12:25:22,253 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-11-23 12:25:22,254 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 35) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (+ (* 3 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~x~0#1|))) (and (= |ULTIMATE.start_main_~y~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))) [2021-11-23 12:25:22,254 INFO L858 garLoopResultBuilder]: For program point L26-3(lines 26 35) no Hoare annotation was computed. [2021-11-23 12:25:22,255 INFO L858 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-11-23 12:25:22,255 INFO L854 garLoopResultBuilder]: At program point L10-2(lines 9 15) the Hoare annotation is: (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (+ (* 3 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~x~0#1|))) [2021-11-23 12:25:22,255 INFO L858 garLoopResultBuilder]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-11-23 12:25:22,256 INFO L861 garLoopResultBuilder]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2021-11-23 12:25:22,256 INFO L861 garLoopResultBuilder]: At program point L37(lines 17 38) the Hoare annotation is: true [2021-11-23 12:25:22,260 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 12:25:22,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:25:22,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:25:22 BoogieIcfgContainer [2021-11-23 12:25:22,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:25:22,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:25:22,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:25:22,310 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:25:22,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:25:19" (3/4) ... [2021-11-23 12:25:22,314 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 12:25:22,328 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 12:25:22,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 12:25:22,329 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 12:25:22,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 12:25:22,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 12:25:22,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:25:22,405 INFO L158 Benchmark]: Toolchain (without parser) took 3247.39ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 68.1MB in the beginning and 81.5MB in the end (delta: -13.4MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-11-23 12:25:22,405 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 76.8MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:25:22,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.09ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 77.9MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 12:25:22,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.56ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:25:22,407 INFO L158 Benchmark]: Boogie Preprocessor took 23.71ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 75.7MB in the end (delta: 732.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:25:22,407 INFO L158 Benchmark]: RCFGBuilder took 384.80ms. Allocated memory is still 102.8MB. Free memory was 75.4MB in the beginning and 66.7MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 12:25:22,408 INFO L158 Benchmark]: TraceAbstraction took 2314.99ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 66.4MB in the beginning and 84.2MB in the end (delta: -17.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-23 12:25:22,409 INFO L158 Benchmark]: Witness Printer took 94.89ms. Allocated memory is still 136.3MB. Free memory was 84.2MB in the beginning and 81.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:25:22,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 76.8MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.09ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 77.9MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.56ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.71ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 75.7MB in the end (delta: 732.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 384.80ms. Allocated memory is still 102.8MB. Free memory was 75.4MB in the beginning and 66.7MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2314.99ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 66.4MB in the beginning and 84.2MB in the end (delta: -17.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 94.89ms. Allocated memory is still 136.3MB. Free memory was 84.2MB in the beginning and 81.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 17 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 52 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 6 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 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 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 <= cond && 3 * (y * y) + 2 * (y * y * y) + y == 6 * x - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (1 <= cond && 3 * (y * y) + 2 * (y * y * y) + y == 6 * x) || (y == 0 && x == 0) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 12:25:22,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6b8d21-01d9-4bc1-ab93-f38ccb16e1ae/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE