./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label27.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7 --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 70ecb2446f57553abe7468e1f232296cdba8856c774fb79cc62538ced35b338d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:16:27,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:16:27,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:16:27,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:16:27,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:16:27,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:16:27,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:16:27,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:16:27,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:16:27,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:16:27,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:16:27,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:16:27,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:16:27,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:16:27,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:16:27,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:16:27,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:16:27,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:16:27,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:16:27,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:16:27,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:16:27,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:16:27,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:16:27,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:16:27,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:16:27,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:16:27,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:16:27,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:16:27,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:16:27,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:16:27,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:16:27,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:16:27,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:16:27,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:16:27,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:16:27,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:16:27,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:16:27,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:16:27,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:16:27,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:16:27,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:16:27,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:16:27,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:16:27,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:16:27,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:16:27,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:16:27,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:16:27,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:16:27,651 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:16:27,652 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:16:27,652 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:16:27,653 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:16:27,653 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:16:27,654 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:16:27,654 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:16:27,655 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:16:27,655 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:16:27,656 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:16:27,656 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:16:27,657 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:16:27,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:16:27,659 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:16:27,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:16:27,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:16:27,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:16:27,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:16:27,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:16:27,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:16:27,661 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:16:27,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:16:27,662 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:16:27,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:16:27,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:16:27,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:16:27,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:16:27,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:16:27,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:16:27,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:16:27,665 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:16:27,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:16:27,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:16:27,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:16:27,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:16:27,667 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_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ecb2446f57553abe7468e1f232296cdba8856c774fb79cc62538ced35b338d [2021-11-25 19:16:27,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:16:28,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:16:28,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:16:28,036 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:16:28,037 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:16:28,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2021-11-25 19:16:28,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/data/e72d53edf/1c2ba3bff600430b9933a48b64adfc16/FLAG358966e14 [2021-11-25 19:16:28,796 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:16:28,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/sv-benchmarks/c/eca-rers2012/Problem10_label27.c [2021-11-25 19:16:28,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/data/e72d53edf/1c2ba3bff600430b9933a48b64adfc16/FLAG358966e14 [2021-11-25 19:16:29,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/data/e72d53edf/1c2ba3bff600430b9933a48b64adfc16 [2021-11-25 19:16:29,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:16:29,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:16:29,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:16:29,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:16:29,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:16:29,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:29,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32aae3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29, skipping insertion in model container [2021-11-25 19:16:29,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:29,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:16:29,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:16:29,425 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_afc1ed07-c211-4a73-a21b-76f73650e8b4/sv-benchmarks/c/eca-rers2012/Problem10_label27.c[6867,6880] [2021-11-25 19:16:29,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:16:29,681 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:16:29,752 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_afc1ed07-c211-4a73-a21b-76f73650e8b4/sv-benchmarks/c/eca-rers2012/Problem10_label27.c[6867,6880] [2021-11-25 19:16:29,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:16:29,898 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:16:29,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29 WrapperNode [2021-11-25 19:16:29,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:16:29,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:16:29,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:16:29,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:16:29,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:29,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,047 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-25 19:16:30,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:16:30,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:16:30,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:16:30,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:16:30,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:16:30,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:16:30,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:16:30,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:16:30,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (1/1) ... [2021-11-25 19:16:30,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:16:30,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:16:30,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:16:30,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:16:30,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:16:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:16:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:16:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:16:30,394 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:16:30,396 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:16:32,056 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:16:34,422 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:16:34,423 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 19:16:34,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:16:34 BoogieIcfgContainer [2021-11-25 19:16:34,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:16:34,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:16:34,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:16:34,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:16:34,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:16:29" (1/3) ... [2021-11-25 19:16:34,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4630af07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:16:34, skipping insertion in model container [2021-11-25 19:16:34,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:16:29" (2/3) ... [2021-11-25 19:16:34,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4630af07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:16:34, skipping insertion in model container [2021-11-25 19:16:34,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:16:34" (3/3) ... [2021-11-25 19:16:34,444 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c [2021-11-25 19:16:34,452 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:16:34,452 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:16:34,528 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:16:34,537 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 [2021-11-25 19:16:34,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:16:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 19:16:34,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:34,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 19:16:34,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:34,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash 885187690, now seen corresponding path program 1 times [2021-11-25 19:16:34,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:34,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299468573] [2021-11-25 19:16:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:34,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:34,970 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:34,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299468573] [2021-11-25 19:16:34,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299468573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:34,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:34,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:16:34,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936334323] [2021-11-25 19:16:34,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:34,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:16:34,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:35,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:16:35,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:16:35,035 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:35,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:35,194 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-11-25 19:16:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:16:35,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 19:16:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:35,211 INFO L225 Difference]: With dead ends: 23 [2021-11-25 19:16:35,211 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 19:16:35,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:16:35,219 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:35,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:16:35,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 19:16:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-25 19:16:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-25 19:16:35,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-11-25 19:16:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:35,260 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-25 19:16:35,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:16:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-25 19:16:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:16:35,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:35,262 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-25 19:16:35,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:16:35,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:16:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash -916697807, now seen corresponding path program 1 times [2021-11-25 19:16:35,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:35,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983825303] [2021-11-25 19:16:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:35,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:36,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:36,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983825303] [2021-11-25 19:16:36,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983825303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:16:36,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325829794] [2021-11-25 19:16:36,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:36,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:16:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:16:36,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:16:36,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:16:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:36,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-25 19:16:36,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:16:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:16:54,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:17:13,567 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-25 19:17:13,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [467051341] [2021-11-25 19:17:13,592 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:17:13,592 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:17:13,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:17:13,605 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:17:13,606 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:17:21,214 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 56 [2021-11-25 19:17:33,951 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 33375 conjuctions. This might take some time... [2021-11-25 19:17:37,711 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 550 conjuctions. [2021-11-25 19:17:37,753 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 56 [2021-11-25 19:17:48,550 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 33375 conjuctions. This might take some time... [2021-11-25 19:17:52,120 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 550 conjuctions. [2021-11-25 19:18:11,825 FATAL L? ?]: Ignoring exception! java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:98) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 19:18:11,828 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 19:18:11,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-11-25 19:18:11,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273373670] [2021-11-25 19:18:11,829 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 19:18:11,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:18:11,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:18:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:18:11,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:18:11,832 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:18:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:18:11,997 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-11-25 19:18:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:18:11,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:18:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:18:11,999 INFO L225 Difference]: With dead ends: 15 [2021-11-25 19:18:11,999 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:18:12,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:18:12,002 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:18:12,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 3 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:18:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:18:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:18:12,004 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) [2021-11-25 19:18:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:18:12,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-25 19:18:12,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:18:12,005 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:18:12,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:18:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:18:12,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:18:12,009 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 19:18:12,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:18:12,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:18:12,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 19:18:12,252 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-25 19:18:12,253 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 19:18:12,253 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-25 19:18:12,253 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 19:18:12,253 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-11-25 19:18:12,254 INFO L854 garLoopResultBuilder]: At program point L193-1(lines 30 584) the Hoare annotation is: (or (not (= 7 ~a19~0)) (< 0 (+ ~a1~0 13))) [2021-11-25 19:18:12,254 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-25 19:18:12,254 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= 7 ~a19~0)) (< 0 (+ ~a1~0 13))) [2021-11-25 19:18:12,255 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 194) no Hoare annotation was computed. [2021-11-25 19:18:12,259 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 19:18:12,261 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:18:12,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:18:12 BoogieIcfgContainer [2021-11-25 19:18:12,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:18:12,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:18:12,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:18:12,297 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:18:12,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:16:34" (3/4) ... [2021-11-25 19:18:12,302 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 19:18:12,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2021-11-25 19:18:12,335 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-25 19:18:12,337 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-25 19:18:12,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 19:18:12,530 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:18:12,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:18:12,532 INFO L158 Benchmark]: Toolchain (without parser) took 103514.53ms. Allocated memory was 107.0MB in the beginning and 13.1GB in the end (delta: 13.0GB). Free memory was 67.5MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2021-11-25 19:18:12,532 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:18:12,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 870.57ms. Allocated memory is still 107.0MB. Free memory was 67.3MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 19:18:12,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.52ms. Allocated memory is still 107.0MB. Free memory was 65.3MB in the beginning and 57.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 19:18:12,534 INFO L158 Benchmark]: Boogie Preprocessor took 132.09ms. Allocated memory is still 107.0MB. Free memory was 57.4MB in the beginning and 52.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 19:18:12,534 INFO L158 Benchmark]: RCFGBuilder took 4247.60ms. Allocated memory was 107.0MB in the beginning and 255.9MB in the end (delta: 148.9MB). Free memory was 52.4MB in the beginning and 140.7MB in the end (delta: -88.3MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2021-11-25 19:18:12,535 INFO L158 Benchmark]: TraceAbstraction took 97861.21ms. Allocated memory was 255.9MB in the beginning and 13.1GB in the end (delta: 12.8GB). Free memory was 140.7MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2021-11-25 19:18:12,535 INFO L158 Benchmark]: Witness Printer took 234.99ms. Allocated memory is still 13.1GB. Free memory was 11.0GB in the beginning and 11.0GB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 19:18:12,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 870.57ms. Allocated memory is still 107.0MB. Free memory was 67.3MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.52ms. Allocated memory is still 107.0MB. Free memory was 65.3MB in the beginning and 57.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.09ms. Allocated memory is still 107.0MB. Free memory was 57.4MB in the beginning and 52.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4247.60ms. Allocated memory was 107.0MB in the beginning and 255.9MB in the end (delta: 148.9MB). Free memory was 52.4MB in the beginning and 140.7MB in the end (delta: -88.3MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. * TraceAbstraction took 97861.21ms. Allocated memory was 255.9MB in the beginning and 13.1GB in the end (delta: 12.8GB). Free memory was 140.7MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 234.99ms. Allocated memory is still 13.1GB. Free memory was 11.0GB in the beginning and 11.0GB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. 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: 194]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 97.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 8, 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 21 HoareAnnotationTreeSize, 3 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: !(7 == a19) || 0 < a1 + 13 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(7 == a19) || 0 < a1 + 13 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 19:18:12,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc1ed07-c211-4a73-a21b-76f73650e8b4/bin/utaipan-eEHZpOm5b7/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