./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw --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 f760d06abb26d5723ce99b8dc28d6dd16ec1947aefbd90d28b2817b55d29a0fc .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:58:53,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:58:53,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:58:53,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:58:53,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:58:53,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:58:53,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:58:53,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:58:53,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:58:53,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:58:53,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:58:53,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:58:53,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:58:53,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:58:53,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:58:53,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:58:53,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:58:53,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:58:53,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:58:53,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:58:53,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:58:53,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:58:53,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:58:53,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:58:53,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:58:53,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:58:53,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:58:53,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:58:53,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:58:53,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:58:53,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:58:53,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:58:53,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:58:53,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:58:53,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:58:53,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:58:53,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:58:53,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:58:53,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:58:53,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:58:53,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:58:53,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:58:53,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:58:53,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:58:53,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:58:53,659 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:58:53,660 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:58:53,660 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:58:53,661 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:58:53,661 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:58:53,661 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:58:53,661 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:58:53,663 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:58:53,663 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:58:53,664 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:58:53,664 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:58:53,664 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:58:53,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:58:53,666 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:58:53,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:58:53,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:58:53,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:58:53,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:58:53,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:58:53,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:58:53,668 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:58:53,668 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:58:53,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:58:53,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:58:53,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:58:53,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:58:53,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:58:53,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:58:53,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:58:53,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:58:53,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:58:53,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:58:53,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:58:53,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:58:53,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:58:53,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:58:53,675 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_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f760d06abb26d5723ce99b8dc28d6dd16ec1947aefbd90d28b2817b55d29a0fc [2021-10-20 05:58:54,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:58:54,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:58:54,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:58:54,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:58:54,048 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:58:54,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/eca-rers2012/Problem10_label38.c [2021-10-20 05:58:54,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/data/919be0151/b1efed3e2413407dae4e13f2479f3e2c/FLAG7393fa975 [2021-10-20 05:58:54,852 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:58:54,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/sv-benchmarks/c/eca-rers2012/Problem10_label38.c [2021-10-20 05:58:54,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/data/919be0151/b1efed3e2413407dae4e13f2479f3e2c/FLAG7393fa975 [2021-10-20 05:58:55,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/data/919be0151/b1efed3e2413407dae4e13f2479f3e2c [2021-10-20 05:58:55,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:58:55,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:58:55,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:58:55,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:58:55,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:58:55,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:55" (1/1) ... [2021-10-20 05:58:55,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c624eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:55, skipping insertion in model container [2021-10-20 05:58:55,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:58:55" (1/1) ... [2021-10-20 05:58:55,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:58:55,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:58:55,599 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/sv-benchmarks/c/eca-rers2012/Problem10_label38.c[3802,3815] [2021-10-20 05:58:55,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:58:55,876 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:58:55,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/sv-benchmarks/c/eca-rers2012/Problem10_label38.c[3802,3815] [2021-10-20 05:58:56,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:58:56,030 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:58:56,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56 WrapperNode [2021-10-20 05:58:56,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:58:56,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:58:56,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:58:56,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:58:56,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:58:56,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:58:56,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:58:56,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:58:56,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:58:56,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:58:56,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:58:56,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:58:56,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (1/1) ... [2021-10-20 05:58:56,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:58:56,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:58:56,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:58:56,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:58:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:58:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:58:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:58:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:59:09,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:59:09,509 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-20 05:59:09,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:59:09 BoogieIcfgContainer [2021-10-20 05:59:09,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:59:09,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:59:09,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:59:09,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:59:09,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:58:55" (1/3) ... [2021-10-20 05:59:09,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0a0980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:59:09, skipping insertion in model container [2021-10-20 05:59:09,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:58:56" (2/3) ... [2021-10-20 05:59:09,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0a0980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:59:09, skipping insertion in model container [2021-10-20 05:59:09,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:59:09" (3/3) ... [2021-10-20 05:59:09,524 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label38.c [2021-10-20 05:59:09,534 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:59:09,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:59:09,611 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:59:09,623 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:59:09,623 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:59:09,643 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) [2021-10-20 05:59:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-20 05:59:09,660 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:59:09,661 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-20 05:59:09,662 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:59:09,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:59:09,673 INFO L82 PathProgramCache]: Analyzing trace with hash 885166107, now seen corresponding path program 1 times [2021-10-20 05:59:09,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:59:09,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238063849] [2021-10-20 05:59:09,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:59:09,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:59:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:59:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:59:09,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:59:09,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238063849] [2021-10-20 05:59:09,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238063849] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:59:09,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:59:09,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:59:09,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524369299] [2021-10-20 05:59:09,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:59:09,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:59:09,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:59:09,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:59:09,974 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:59:10,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:59:10,074 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-20 05:59:10,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:59:10,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-20 05:59:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:59:10,085 INFO L225 Difference]: With dead ends: 23 [2021-10-20 05:59:10,086 INFO L226 Difference]: Without dead ends: 11 [2021-10-20 05:59:10,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:59:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-20 05:59:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-20 05:59:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:59:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-20 05:59:10,128 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-20 05:59:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:59:10,129 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-20 05:59:10,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:59:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-20 05:59:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-20 05:59:10,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:59:10,131 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-20 05:59:10,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:59:10,132 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:59:10,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:59:10,133 INFO L82 PathProgramCache]: Analyzing trace with hash 832632051, now seen corresponding path program 1 times [2021-10-20 05:59:10,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:59:10,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486566518] [2021-10-20 05:59:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:59:10,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:59:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:59:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:59:10,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:59:10,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486566518] [2021-10-20 05:59:10,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486566518] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:59:10,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004735531] [2021-10-20 05:59:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:59:10,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:59:10,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:59:10,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:59:10,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 05:59:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:59:10,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 05:59:10,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:59:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:59:30,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:59:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 05:59:45,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004735531] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-20 05:59:45,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:59:45,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 7 [2021-10-20 05:59:45,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214181928] [2021-10-20 05:59:45,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:59:45,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:59:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:59:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:59:45,027 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:59:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:59:45,070 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-20 05:59:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:59:45,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-20 05:59:45,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:59:45,073 INFO L225 Difference]: With dead ends: 10 [2021-10-20 05:59:45,073 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:59:45,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 305.1ms TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:59:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:59:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:59:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:59:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:59:45,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-20 05:59:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:59:45,076 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:59:45,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:59:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:59:45,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:59:45,080 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:59:45,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:59:45,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:59:45,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 05:59:45,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:59:45,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:59:45,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:59:45,335 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-20 05:59:45,335 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-20 05:59:45,336 INFO L853 garLoopResultBuilder]: At program point L109-1(lines 30 584) the Hoare annotation is: (or (<= ~a1~0 218) (not (= ~a10~0 4)) (not (= 7 ~a19~0))) [2021-10-20 05:59:45,336 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-20 05:59:45,336 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 05:59:45,336 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-20 05:59:45,337 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 05:59:45,337 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (<= ~a1~0 218) (not (= ~a10~0 4)) (not (= 7 ~a19~0))) [2021-10-20 05:59:45,337 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-10-20 05:59:45,343 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:59:45,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:59:45 BoogieIcfgContainer [2021-10-20 05:59:45,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:59:45,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:59:45,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:59:45,360 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:59:45,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:59:09" (3/4) ... [2021-10-20 05:59:45,364 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:59:45,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 181 nodes and edges [2021-10-20 05:59:45,394 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-20 05:59:45,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-20 05:59:45,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-20 05:59:45,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:59:45,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:59:45,587 INFO L168 Benchmark]: Toolchain (without parser) took 50466.92 ms. Allocated memory was 113.2 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 83.3 MB in the beginning and 975.9 MB in the end (delta: -892.6 MB). Peak memory consumption was 476.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,588 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory is still 67.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:59:45,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.95 ms. Allocated memory is still 113.2 MB. Free memory was 83.1 MB in the beginning and 70.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.27 ms. Allocated memory is still 113.2 MB. Free memory was 70.4 MB in the beginning and 62.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,590 INFO L168 Benchmark]: Boogie Preprocessor took 101.15 ms. Allocated memory is still 113.2 MB. Free memory was 62.4 MB in the beginning and 57.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,590 INFO L168 Benchmark]: RCFGBuilder took 13252.93 ms. Allocated memory was 113.2 MB in the beginning and 375.4 MB in the end (delta: 262.1 MB). Free memory was 57.5 MB in the beginning and 200.6 MB in the end (delta: -143.1 MB). Peak memory consumption was 151.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,591 INFO L168 Benchmark]: TraceAbstraction took 35843.50 ms. Allocated memory was 375.4 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 199.5 MB in the beginning and 991.6 MB in the end (delta: -792.1 MB). Peak memory consumption was 315.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,591 INFO L168 Benchmark]: Witness Printer took 226.18 ms. Allocated memory is still 1.5 GB. Free memory was 991.6 MB in the beginning and 975.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:59:45,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory is still 67.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 909.95 ms. Allocated memory is still 113.2 MB. Free memory was 83.1 MB in the beginning and 70.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.27 ms. Allocated memory is still 113.2 MB. Free memory was 70.4 MB in the beginning and 62.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.15 ms. Allocated memory is still 113.2 MB. Free memory was 62.4 MB in the beginning and 57.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13252.93 ms. Allocated memory was 113.2 MB in the beginning and 375.4 MB in the end (delta: 262.1 MB). Free memory was 57.5 MB in the beginning and 200.6 MB in the end (delta: -143.1 MB). Peak memory consumption was 151.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35843.50 ms. Allocated memory was 375.4 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 199.5 MB in the beginning and 991.6 MB in the end (delta: -792.1 MB). Peak memory consumption was 315.2 MB. Max. memory is 16.1 GB. * Witness Printer took 226.18 ms. Allocated memory is still 1.5 GB. Free memory was 991.6 MB in the beginning and 975.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35734.7ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 22.9ms, AutomataDifference: 181.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 40.1ms, InitialAbstractionConstructionTime: 14.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 8 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 340.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 21.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 13.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 18.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 25.9ms SsaConstructionTime, 366.6ms SatisfiabilityAnalysisTime, 34628.5ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 727 SizeOfPredicates, 4 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (a1 <= 218 || !(a10 == 4)) || !(7 == a19) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (a1 <= 218 || !(a10 == 4)) || !(7 == a19) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-20 05:59:45,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e132f0e-3e52-4bbf-8f07-0d712885dd6f/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...