./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl --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 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:27,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:27,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:27,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:27,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:27,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:27,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:27,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:27,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:27,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:27,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:27,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:27,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:27,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:27,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:27,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:27,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:27,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:27,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:27,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:27,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:27,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:27,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:27,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:27,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:27,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:27,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:27,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:27,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:27,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:27,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:27,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:27,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:27,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:27,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:27,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:27,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:27,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:27,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:27,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:27,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:27,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:46:27,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:27,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:27,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:27,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:27,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:27,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:27,800 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:27,801 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:27,801 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:27,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:46:27,801 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:27,802 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:27,802 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:46:27,802 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:46:27,803 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:27,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:46:27,803 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:46:27,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:46:27,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:27,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:27,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:46:27,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:27,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:27,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:27,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:27,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:27,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:27,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:27,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:27,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:27,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:27,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:27,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:27,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:27,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:27,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:27,809 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:46:27,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:46:27,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:27,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:27,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:27,810 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_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f [2021-11-23 16:46:28,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:28,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:28,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:28,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:28,089 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:28,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-11-23 16:46:28,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/cbaae39b1/6eea19c9de10410daad055e3f671cf20/FLAG323632620 [2021-11-23 16:46:28,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:28,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-11-23 16:46:28,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/cbaae39b1/6eea19c9de10410daad055e3f671cf20/FLAG323632620 [2021-11-23 16:46:29,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/cbaae39b1/6eea19c9de10410daad055e3f671cf20 [2021-11-23 16:46:29,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:29,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:29,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:29,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:29,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:29,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2cb4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29, skipping insertion in model container [2021-11-23 16:46:29,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:29,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:29,258 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_6775da9d-680f-4b83-befb-1f2d1e1d315b/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-11-23 16:46:29,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:29,282 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:29,304 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_6775da9d-680f-4b83-befb-1f2d1e1d315b/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-11-23 16:46:29,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:29,318 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:29,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29 WrapperNode [2021-11-23 16:46:29,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:29,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:29,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:29,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:29,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,348 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2021-11-23 16:46:29,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:29,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:29,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:29,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:29,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:29,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:29,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:29,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:29,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (1/1) ... [2021-11-23 16:46:29,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:29,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:29,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:29,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:29,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:46:29,518 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:29,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:29,619 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:29,631 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:46:29,631 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:46:29,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:29 BoogieIcfgContainer [2021-11-23 16:46:29,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:46:29,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:46:29,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:46:29,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:46:29,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:46:29" (1/3) ... [2021-11-23 16:46:29,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf70fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:29, skipping insertion in model container [2021-11-23 16:46:29,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:29" (2/3) ... [2021-11-23 16:46:29,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf70fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:29, skipping insertion in model container [2021-11-23 16:46:29,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:29" (3/3) ... [2021-11-23 16:46:29,663 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2021-11-23 16:46:29,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:46:29,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:46:29,736 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:46:29,744 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 [2021-11-23 16:46:29,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:46:29,758 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) [2021-11-23 16:46:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 16:46:29,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:29,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 16:46:29,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:29,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:29,778 INFO L85 PathProgramCache]: Analyzing trace with hash 58614883, now seen corresponding path program 1 times [2021-11-23 16:46:29,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 16:46:29,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285999101] [2021-11-23 16:46:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:29,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 16:46:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:29,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:29,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 16:46:29,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285999101] [2021-11-23 16:46:29,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285999101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 16:46:29,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 16:46:29,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 16:46:29,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056914410] [2021-11-23 16:46:29,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:46:29,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 16:46:29,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 16:46:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 16:46:29,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 16:46:29,982 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 2 states, 2 states have (on average 2.5) 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) [2021-11-23 16:46:30,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:46:30,001 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-23 16:46:30,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 16:46:30,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) 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 [2021-11-23 16:46:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:46:30,029 INFO L225 Difference]: With dead ends: 15 [2021-11-23 16:46:30,030 INFO L226 Difference]: Without dead ends: 7 [2021-11-23 16:46:30,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 16:46:30,038 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 16:46:30,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 16:46:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-23 16:46:30,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-23 16:46:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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) [2021-11-23 16:46:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-11-23 16:46:30,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-11-23 16:46:30,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:46:30,071 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-11-23 16:46:30,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) 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) [2021-11-23 16:46:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-11-23 16:46:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 16:46:30,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:30,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 16:46:30,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 16:46:30,072 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:30,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:30,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1810415056, now seen corresponding path program 1 times [2021-11-23 16:46:30,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 16:46:30,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214699024] [2021-11-23 16:46:30,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:30,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 16:46:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 16:46:30,101 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 16:46:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 16:46:30,165 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 16:46:30,165 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 16:46:30,167 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 16:46:30,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 16:46:30,180 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 16:46:30,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 16:46:30,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:46:30 BoogieIcfgContainer [2021-11-23 16:46:30,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 16:46:30,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 16:46:30,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 16:46:30,222 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 16:46:30,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:29" (3/4) ... [2021-11-23 16:46:30,227 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 16:46:30,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 16:46:30,229 INFO L158 Benchmark]: Toolchain (without parser) took 1178.74ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 53.2MB in the beginning and 72.6MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:30,230 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:30,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.98ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 52.9MB in the beginning and 81.1MB in the end (delta: -28.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:46:30,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.13ms. Allocated memory is still 104.9MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:30,240 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 79.0MB in the end (delta: 731.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:30,241 INFO L158 Benchmark]: RCFGBuilder took 261.71ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 70.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:46:30,241 INFO L158 Benchmark]: TraceAbstraction took 585.26ms. Allocated memory is still 104.9MB. Free memory was 69.6MB in the beginning and 73.1MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:30,242 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 72.6MB in the end (delta: 517.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:30,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.98ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 52.9MB in the beginning and 81.1MB in the end (delta: -28.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.13ms. Allocated memory is still 104.9MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 79.0MB in the end (delta: 731.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.71ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 70.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 585.26ms. Allocated memory is still 104.9MB. Free memory was 69.6MB in the beginning and 73.1MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 72.6MB in the end (delta: 517.2kB). There was no memory consumed. 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 - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 16. Possible FailurePath: [L12] unsigned int x = 5; VAL [x=5] [L13] COND FALSE !(__VERIFIER_nondet_int()) [L16] CALL __VERIFIER_assert((x & 5) == 5) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 16:46:30,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl --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 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:32,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:32,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:32,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:32,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:32,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:32,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:32,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:32,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:33,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:33,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:33,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:33,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:33,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:33,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:33,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:33,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:33,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:33,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:33,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:33,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:33,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:33,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:33,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:33,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:33,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:33,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:33,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:33,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:33,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:33,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:33,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:33,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:33,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:33,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:33,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:33,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:33,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:33,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:33,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:33,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:33,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:46:33,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:33,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:33,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:33,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:33,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:33,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:33,122 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:33,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:33,123 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:33,123 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:33,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:33,124 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:33,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:33,126 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:33,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:33,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:33,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:33,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:33,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:33,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:46:33,128 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:46:33,128 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:46:33,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:33,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:33,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:33,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:33,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:33,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:46:33,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:33,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:33,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:33,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:33,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:33,131 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:46:33,131 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:46:33,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:33,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:33,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:33,132 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f [2021-11-23 16:46:33,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:33,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:33,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:33,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:33,561 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:33,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-11-23 16:46:33,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/2cd32e0c7/ac45aa7beb1c4290b81621a155496a74/FLAGeb5e39bf6 [2021-11-23 16:46:34,163 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:34,164 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-11-23 16:46:34,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/2cd32e0c7/ac45aa7beb1c4290b81621a155496a74/FLAGeb5e39bf6 [2021-11-23 16:46:34,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/data/2cd32e0c7/ac45aa7beb1c4290b81621a155496a74 [2021-11-23 16:46:34,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:34,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:34,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:34,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:34,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:34,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30df5ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34, skipping insertion in model container [2021-11-23 16:46:34,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:34,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:34,675 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_6775da9d-680f-4b83-befb-1f2d1e1d315b/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-11-23 16:46:34,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:34,701 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:34,716 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_6775da9d-680f-4b83-befb-1f2d1e1d315b/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-11-23 16:46:34,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:34,735 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:34,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34 WrapperNode [2021-11-23 16:46:34,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:34,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:34,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:34,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:34,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,771 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2021-11-23 16:46:34,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:34,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:34,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:34,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:34,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:34,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:34,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:34,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:34,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:34,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:34,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:34,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:34,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:46:34,995 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:34,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:35,121 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:35,127 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:46:35,127 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:46:35,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:35 BoogieIcfgContainer [2021-11-23 16:46:35,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:46:35,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:46:35,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:46:35,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:46:35,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:46:34" (1/3) ... [2021-11-23 16:46:35,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c530ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:35, skipping insertion in model container [2021-11-23 16:46:35,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (2/3) ... [2021-11-23 16:46:35,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c530ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:35, skipping insertion in model container [2021-11-23 16:46:35,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:35" (3/3) ... [2021-11-23 16:46:35,141 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2021-11-23 16:46:35,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:46:35,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:46:35,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:46:35,224 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 [2021-11-23 16:46:35,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:46:35,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:46:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 16:46:35,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:35,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 16:46:35,252 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:35,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:35,260 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-23 16:46:35,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:35,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733057089] [2021-11-23 16:46:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:35,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:35,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:35,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:35,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:46:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:35,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 16:46:35,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:46:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:35,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 16:46:35,539 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:46:35,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733057089] [2021-11-23 16:46:35,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733057089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 16:46:35,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 16:46:35,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 16:46:35,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603808643] [2021-11-23 16:46:35,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:46:35,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 16:46:35,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:46:35,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 16:46:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 16:46:35,583 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:46:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:46:35,645 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2021-11-23 16:46:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 16:46:35,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 16:46:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:46:35,671 INFO L225 Difference]: With dead ends: 26 [2021-11-23 16:46:35,671 INFO L226 Difference]: Without dead ends: 8 [2021-11-23 16:46:35,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 16:46:35,678 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 16:46:35,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 16:46:35,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-23 16:46:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-23 16:46:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:46:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-23 16:46:35,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-23 16:46:35,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:46:35,714 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-23 16:46:35,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:46:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-23 16:46:35,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 16:46:35,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:35,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:46:35,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 16:46:35,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:35,916 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:35,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-11-23 16:46:35,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:35,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571631313] [2021-11-23 16:46:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:35,918 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:35,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:35,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:35,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 16:46:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:35,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 16:46:35,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:46:36,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:36,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:46:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 16:46:36,115 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:46:36,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571631313] [2021-11-23 16:46:36,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571631313] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 16:46:36,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 16:46:36,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-23 16:46:36,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586297428] [2021-11-23 16:46:36,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:46:36,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 16:46:36,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:46:36,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 16:46:36,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 16:46:36,120 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-11-23 16:46:36,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:46:36,138 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-11-23 16:46:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 16:46:36,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 7 [2021-11-23 16:46:36,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:46:36,139 INFO L225 Difference]: With dead ends: 8 [2021-11-23 16:46:36,139 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 16:46:36,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 16:46:36,142 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 16:46:36,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 16:46:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 16:46:36,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 16:46:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:46:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 16:46:36,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-11-23 16:46:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:46:36,145 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 16:46:36,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-11-23 16:46:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 16:46:36,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 16:46:36,149 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 16:46:36,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:36,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:36,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 16:46:36,362 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 16:46:36,363 INFO L861 garLoopResultBuilder]: At program point L17(lines 11 18) the Hoare annotation is: true [2021-11-23 16:46:36,363 INFO L854 garLoopResultBuilder]: At program point L13-2(lines 13 15) the Hoare annotation is: (= (bvand (_ bv5 32) |ULTIMATE.start_main_~x~0#1|) (_ bv5 32)) [2021-11-23 16:46:36,363 INFO L858 garLoopResultBuilder]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2021-11-23 16:46:36,363 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-11-23 16:46:36,363 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 16:46:36,363 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 16:46:36,364 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 16:46:36,364 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-11-23 16:46:36,364 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-11-23 16:46:36,364 INFO L861 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-11-23 16:46:36,368 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 16:46:36,369 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 16:46:36,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:46:36 BoogieIcfgContainer [2021-11-23 16:46:36,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 16:46:36,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 16:46:36,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 16:46:36,383 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 16:46:36,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:35" (3/4) ... [2021-11-23 16:46:36,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 16:46:36,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 16:46:36,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 16:46:36,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 16:46:36,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 16:46:36,426 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 16:46:36,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 16:46:36,427 INFO L158 Benchmark]: Toolchain (without parser) took 1938.65ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 28.0MB in the end (delta: 14.4MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,428 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 62.9MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:36,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.96ms. Allocated memory is still 62.9MB. Free memory was 42.2MB in the beginning and 32.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.30ms. Allocated memory is still 62.9MB. Free memory was 32.1MB in the beginning and 30.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,429 INFO L158 Benchmark]: Boogie Preprocessor took 31.71ms. Allocated memory is still 62.9MB. Free memory was 30.7MB in the beginning and 29.7MB in the end (delta: 959.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:36,430 INFO L158 Benchmark]: RCFGBuilder took 327.17ms. Allocated memory is still 62.9MB. Free memory was 29.6MB in the beginning and 39.3MB in the end (delta: -9.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,431 INFO L158 Benchmark]: TraceAbstraction took 1247.23ms. Allocated memory is still 62.9MB. Free memory was 38.8MB in the beginning and 30.3MB in the end (delta: 8.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,431 INFO L158 Benchmark]: Witness Printer took 43.77ms. Allocated memory is still 62.9MB. Free memory was 30.3MB in the beginning and 28.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 62.9MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.96ms. Allocated memory is still 62.9MB. Free memory was 42.2MB in the beginning and 32.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.30ms. Allocated memory is still 62.9MB. Free memory was 32.1MB in the beginning and 30.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.71ms. Allocated memory is still 62.9MB. Free memory was 30.7MB in the beginning and 29.7MB in the end (delta: 959.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.17ms. Allocated memory is still 62.9MB. Free memory was 29.6MB in the beginning and 39.3MB in the end (delta: -9.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1247.23ms. Allocated memory is still 62.9MB. Free memory was 38.8MB in the beginning and 30.3MB in the end (delta: 8.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 43.77ms. Allocated memory is still 62.9MB. Free memory was 30.3MB in the beginning and 28.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. 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: 7]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 7 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 4 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ~bvand32(5bv32, x) == 5bv32 RESULT: Ultimate proved your program to be correct! [2021-11-23 16:46:36,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6775da9d-680f-4b83-befb-1f2d1e1d315b/bin/utaipan-fb15Y9Yzbl/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