./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.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_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/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_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/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_926f6898-1345-4d2b-853a-91d862ae62df/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 d1a3abd6c92a6d0d0dc43edf8f70faeb8d7cb6d143fe14753200dcbb4ae12846 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:53:37,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:53:37,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:53:37,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:53:37,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:53:37,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:53:37,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:53:37,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:53:37,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:53:37,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:53:37,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:53:37,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:53:37,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:53:37,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:53:37,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:53:37,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:53:37,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:53:37,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:53:37,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:53:37,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:53:37,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:53:37,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:53:37,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:53:37,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:53:37,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:53:37,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:53:37,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:53:37,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:53:37,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:53:37,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:53:37,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:53:37,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:53:37,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:53:37,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:53:37,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:53:37,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:53:37,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:53:37,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:53:37,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:53:37,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:53:37,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:53:37,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:53:37,591 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:53:37,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:53:37,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:53:37,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:53:37,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:53:37,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:53:37,601 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:53:37,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:53:37,601 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:53:37,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:53:37,602 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:53:37,603 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:53:37,603 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:53:37,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:53:37,603 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:53:37,604 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:53:37,604 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:53:37,604 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:53:37,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:53:37,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:53:37,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:53:37,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:53:37,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:53:37,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:53:37,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:53:37,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:53:37,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:53:37,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:53:37,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:53:37,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:53:37,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:53:37,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:53:37,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:53:37,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:53:37,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:53:37,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:53:37,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:53:37,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:53:37,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:53:37,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:53:37,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:53:37,611 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_926f6898-1345-4d2b-853a-91d862ae62df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1a3abd6c92a6d0d0dc43edf8f70faeb8d7cb6d143fe14753200dcbb4ae12846 [2021-11-25 18:53:37,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:53:37,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:53:37,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:53:37,944 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:53:37,945 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:53:37,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2021-11-25 18:53:38,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/data/4a1a05a51/2cb2337f29be4de181f7cf6b9cbed39d/FLAG7d09111fb [2021-11-25 18:53:38,710 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:53:38,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2021-11-25 18:53:38,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/data/4a1a05a51/2cb2337f29be4de181f7cf6b9cbed39d/FLAG7d09111fb [2021-11-25 18:53:38,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/data/4a1a05a51/2cb2337f29be4de181f7cf6b9cbed39d [2021-11-25 18:53:38,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:53:38,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:53:38,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:53:38,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:53:38,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:53:38,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:53:38" (1/1) ... [2021-11-25 18:53:38,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6053f931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:38, skipping insertion in model container [2021-11-25 18:53:38,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:53:38" (1/1) ... [2021-11-25 18:53:38,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:53:39,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:53:39,249 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_926f6898-1345-4d2b-853a-91d862ae62df/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2021-11-25 18:53:39,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:53:39,395 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:53:39,424 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_926f6898-1345-4d2b-853a-91d862ae62df/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2021-11-25 18:53:39,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:53:39,548 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:53:39,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39 WrapperNode [2021-11-25 18:53:39,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:53:39,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:53:39,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:53:39,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:53:39,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,646 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-25 18:53:39,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:53:39,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:53:39,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:53:39,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:53:39,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:53:39,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:53:39,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:53:39,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:53:39,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (1/1) ... [2021-11-25 18:53:39,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:53:39,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:53:39,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:53:39,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:53:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:53:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:53:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:53:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:53:39,935 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:53:39,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:53:41,286 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:53:43,124 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:53:43,124 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:53:43,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:53:43 BoogieIcfgContainer [2021-11-25 18:53:43,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:53:43,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:53:43,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:53:43,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:53:43,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:53:38" (1/3) ... [2021-11-25 18:53:43,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba9eea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:53:43, skipping insertion in model container [2021-11-25 18:53:43,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:53:39" (2/3) ... [2021-11-25 18:53:43,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba9eea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:53:43, skipping insertion in model container [2021-11-25 18:53:43,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:53:43" (3/3) ... [2021-11-25 18:53:43,136 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label22.c [2021-11-25 18:53:43,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:53:43,142 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:53:43,208 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:53:43,220 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 18:53:43,220 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:53:43,244 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 18:53:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:53:43,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:43,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:53:43,251 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:43,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash 885181802, now seen corresponding path program 1 times [2021-11-25 18:53:43,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:43,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963707696] [2021-11-25 18:53:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:43,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:43,491 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 18:53:43,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:43,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963707696] [2021-11-25 18:53:43,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963707696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:43,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:43,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:53:43,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036674450] [2021-11-25 18:53:43,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:43,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:53:43,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:53:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:53:43,533 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:53:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:53:43,599 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-11-25 18:53:43,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:53:43,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 18:53:43,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:53:43,609 INFO L225 Difference]: With dead ends: 23 [2021-11-25 18:53:43,609 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 18:53:43,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:53:43,615 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:53:43,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:53:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 18:53:43,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-25 18:53:43,645 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 18:53:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-25 18:53:43,647 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-11-25 18:53:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:43,647 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-25 18:53:43,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:53:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-25 18:53:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:53:43,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:43,648 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-25 18:53:43,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:53:43,649 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:53:43,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1889500183, now seen corresponding path program 1 times [2021-11-25 18:53:43,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:43,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106598602] [2021-11-25 18:53:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:43,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:44,182 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 18:53:44,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:44,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106598602] [2021-11-25 18:53:44,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106598602] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:53:44,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065979250] [2021-11-25 18:53:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:44,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:53:44,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:53:44,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:53:44,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:53:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:44,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 18:53:44,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:53:57,282 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 18:53:57,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:54:08,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:54:08,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065979250] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 18:54:08,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:54:08,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 3] total 7 [2021-11-25 18:54:08,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081507662] [2021-11-25 18:54:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:08,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:54:08,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:08,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:54:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:54:08,404 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 18:54:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:08,437 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-25 18:54:08,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:54:08,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 18:54:08,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:08,443 INFO L225 Difference]: With dead ends: 10 [2021-11-25 18:54:08,443 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:54:08,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:54:08,446 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:08,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:54:08,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:54:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:54:08,455 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 18:54:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:54:08,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-25 18:54:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:08,456 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:54:08,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 18:54:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:54:08,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:54:08,460 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:54:08,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:54:08,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-25 18:54:08,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 18:54:08,710 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-25 18:54:08,710 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 18:54:08,711 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-11-25 18:54:08,711 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-25 18:54:08,712 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 18:54:08,712 INFO L854 garLoopResultBuilder]: At program point L124-1(lines 30 584) the Hoare annotation is: (or (not (= 7 ~a19~0)) (not (= ~a10~0 0))) [2021-11-25 18:54:08,713 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-25 18:54:08,713 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= 7 ~a19~0)) (not (= ~a10~0 0))) [2021-11-25 18:54:08,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-11-25 18:54:08,717 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 18:54:08,719 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:54:08,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:54:08 BoogieIcfgContainer [2021-11-25 18:54:08,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:54:08,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:54:08,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:54:08,747 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:54:08,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:53:43" (3/4) ... [2021-11-25 18:54:08,750 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:54:08,781 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 185 nodes and edges [2021-11-25 18:54:08,783 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-25 18:54:08,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-25 18:54:08,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 18:54:08,940 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:54:08,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:54:08,941 INFO L158 Benchmark]: Toolchain (without parser) took 30015.24ms. Allocated memory was 92.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 53.0MB in the beginning and 898.2MB in the end (delta: -845.2MB). Peak memory consumption was 291.0MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,942 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 70.7MB in the beginning and 70.7MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:54:08,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.47ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 51.3MB in the end (delta: 1.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.04ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 43.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,943 INFO L158 Benchmark]: Boogie Preprocessor took 118.89ms. Allocated memory is still 92.3MB. Free memory was 43.3MB in the beginning and 38.4MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,943 INFO L158 Benchmark]: RCFGBuilder took 3360.44ms. Allocated memory was 92.3MB in the beginning and 182.5MB in the end (delta: 90.2MB). Free memory was 38.4MB in the beginning and 94.7MB in the end (delta: -56.3MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,944 INFO L158 Benchmark]: TraceAbstraction took 25617.19ms. Allocated memory was 182.5MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 94.7MB in the beginning and 913.9MB in the end (delta: -819.2MB). Peak memory consumption was 226.2MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,944 INFO L158 Benchmark]: Witness Printer took 194.32ms. Allocated memory is still 1.2GB. Free memory was 913.9MB in the beginning and 898.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 18:54:08,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 70.7MB in the beginning and 70.7MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.47ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 51.3MB in the end (delta: 1.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.04ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 43.3MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.89ms. Allocated memory is still 92.3MB. Free memory was 43.3MB in the beginning and 38.4MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3360.44ms. Allocated memory was 92.3MB in the beginning and 182.5MB in the end (delta: 90.2MB). Free memory was 38.4MB in the beginning and 94.7MB in the end (delta: -56.3MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * TraceAbstraction took 25617.19ms. Allocated memory was 182.5MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 94.7MB in the beginning and 913.9MB in the end (delta: -819.2MB). Peak memory consumption was 226.2MB. Max. memory is 16.1GB. * Witness Printer took 194.32ms. Allocated memory is still 1.2GB. Free memory was 913.9MB in the beginning and 898.2MB in the end (delta: 15.7MB). 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: 125]: 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: 25.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 8 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 24.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 5 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 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) || !(a10 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(7 == a19) || !(a10 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 18:54:08,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_926f6898-1345-4d2b-853a-91d862ae62df/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