./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:16:58,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:16:58,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:16:58,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:16:58,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:16:58,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:16:58,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:16:58,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:16:58,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:16:58,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:16:58,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:16:58,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:16:58,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:16:58,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:16:58,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:16:58,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:16:58,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:16:58,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:16:58,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:16:58,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:16:58,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:16:58,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:16:58,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:16:58,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:16:58,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:16:58,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:16:58,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:16:58,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:16:58,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:16:58,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:16:58,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:16:58,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:16:58,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:16:58,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:16:58,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:16:58,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:16:58,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:16:58,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:16:58,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:16:58,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:16:58,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:16:58,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:16:58,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:16:58,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:16:58,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:16:58,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:16:58,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:16:58,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:16:58,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:16:58,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:16:58,367 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:16:58,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:16:58,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:16:58,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:16:58,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:16:58,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:16:58,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:16:58,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:16:58,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:16:58,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:16:58,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:16:58,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:16:58,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:16:58,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:16:58,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:16:58,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:16:58,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:16:58,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:16:58,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:16:58,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:16:58,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:16:58,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:16:58,371 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:16:58,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:16:58,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:16:58,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:16:58,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2021-12-07 00:16:58,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:16:58,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:16:58,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:16:58,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:16:58,592 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:16:58,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2021-12-07 00:16:58,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/data/13c309d4a/ea8ac317340f4512a70deafc14700b1b/FLAG3edf772a2 [2021-12-07 00:16:59,004 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:16:59,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2021-12-07 00:16:59,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/data/13c309d4a/ea8ac317340f4512a70deafc14700b1b/FLAG3edf772a2 [2021-12-07 00:16:59,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/data/13c309d4a/ea8ac317340f4512a70deafc14700b1b [2021-12-07 00:16:59,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:16:59,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:16:59,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:59,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:16:59,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:16:59,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3d0dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59, skipping insertion in model container [2021-12-07 00:16:59,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:16:59,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:16:59,149 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_7f03034f-d707-474e-97e6-8de6edd073c2/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2021-12-07 00:16:59,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:59,160 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:16:59,169 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_7f03034f-d707-474e-97e6-8de6edd073c2/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2021-12-07 00:16:59,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:59,181 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:16:59,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59 WrapperNode [2021-12-07 00:16:59,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:59,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:59,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:16:59,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:16:59,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,203 INFO L137 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-12-07 00:16:59,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:59,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:16:59,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:16:59,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:16:59,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:16:59,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:16:59,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:16:59,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:16:59,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (1/1) ... [2021-12-07 00:16:59,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:16:59,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:59,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:59,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:16:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:16:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-12-07 00:16:59,282 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-12-07 00:16:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:16:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:16:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2021-12-07 00:16:59,283 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2021-12-07 00:16:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:16:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:16:59,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:16:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:16:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:16:59,333 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:16:59,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:16:59,397 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:16:59,401 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:16:59,402 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 00:16:59,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:59 BoogieIcfgContainer [2021-12-07 00:16:59,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:16:59,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:16:59,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:16:59,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:16:59,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:16:59" (1/3) ... [2021-12-07 00:16:59,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112533dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:16:59, skipping insertion in model container [2021-12-07 00:16:59,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:59" (2/3) ... [2021-12-07 00:16:59,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112533dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:16:59, skipping insertion in model container [2021-12-07 00:16:59,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:59" (3/3) ... [2021-12-07 00:16:59,409 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2021-12-07 00:16:59,413 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:16:59,414 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:16:59,448 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:16:59,453 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:16:59,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:16:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-07 00:16:59,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-07 00:16:59,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:16:59,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:59,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:16:59,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash -694887038, now seen corresponding path program 1 times [2021-12-07 00:16:59,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:59,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175887583] [2021-12-07 00:16:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:59,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:59,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:59,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175887583] [2021-12-07 00:16:59,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175887583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:16:59,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:16:59,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:16:59,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081830301] [2021-12-07 00:16:59,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:16:59,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:16:59,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:16:59,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:16:59,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:16:59,680 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:16:59,745 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-12-07 00:16:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:16:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-07 00:16:59,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:16:59,755 INFO L225 Difference]: With dead ends: 33 [2021-12-07 00:16:59,755 INFO L226 Difference]: Without dead ends: 14 [2021-12-07 00:16:59,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:16:59,762 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:16:59,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:16:59,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-07 00:16:59,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-12-07 00:16:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-12-07 00:16:59,796 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-12-07 00:16:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:16:59,796 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-12-07 00:16:59,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:16:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-12-07 00:16:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-07 00:16:59,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:16:59,798 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:16:59,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:16:59,798 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:16:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2070363059, now seen corresponding path program 1 times [2021-12-07 00:16:59,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:59,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408658053] [2021-12-07 00:16:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:59,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:16:59,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:16:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408658053] [2021-12-07 00:16:59,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408658053] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:16:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570045989] [2021-12-07 00:16:59,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:59,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:16:59,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:59,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:16:59,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 00:16:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:16:59,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 41 conjunts are in the unsatisfiable core [2021-12-07 00:16:59,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:17:00,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:17:00,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:17:00,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:00,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:17:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:00,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570045989] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:17:00,280 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:17:00,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 22 [2021-12-07 00:17:00,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729336385] [2021-12-07 00:17:00,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:17:00,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-07 00:17:00,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-07 00:17:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2021-12-07 00:17:00,284 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:17:00,412 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-12-07 00:17:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 00:17:00,413 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-07 00:17:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:17:00,414 INFO L225 Difference]: With dead ends: 28 [2021-12-07 00:17:00,414 INFO L226 Difference]: Without dead ends: 24 [2021-12-07 00:17:00,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2021-12-07 00:17:00,417 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:17:00,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:17:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-12-07 00:17:00,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-12-07 00:17:00,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-12-07 00:17:00,423 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2021-12-07 00:17:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:17:00,424 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-12-07 00:17:00,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-12-07 00:17:00,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 00:17:00,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:17:00,425 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-12-07 00:17:00,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:17:00,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-07 00:17:00,627 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:17:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:00,630 INFO L85 PathProgramCache]: Analyzing trace with hash -978155155, now seen corresponding path program 2 times [2021-12-07 00:17:00,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:00,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179815574] [2021-12-07 00:17:00,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:00,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:00,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:00,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179815574] [2021-12-07 00:17:00,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179815574] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:17:00,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773056384] [2021-12-07 00:17:00,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 00:17:00,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:17:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:17:00,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:17:00,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-07 00:17:00,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 00:17:00,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:17:00,930 WARN L261 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 89 conjunts are in the unsatisfiable core [2021-12-07 00:17:00,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:17:00,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-07 00:17:00,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:17:01,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:17:01,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:17:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:01,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:17:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:01,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773056384] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:17:01,273 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:17:01,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 34 [2021-12-07 00:17:01,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848226713] [2021-12-07 00:17:01,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:17:01,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-07 00:17:01,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:01,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-07 00:17:01,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2021-12-07 00:17:01,275 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 34 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 20 states have internal predecessors, (30), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:17:01,569 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-12-07 00:17:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-07 00:17:01,570 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 20 states have internal predecessors, (30), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-07 00:17:01,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:17:01,571 INFO L225 Difference]: With dead ends: 48 [2021-12-07 00:17:01,571 INFO L226 Difference]: Without dead ends: 44 [2021-12-07 00:17:01,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=409, Invalid=2347, Unknown=0, NotChecked=0, Total=2756 [2021-12-07 00:17:01,574 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:17:01,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 36 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:17:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-07 00:17:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-12-07 00:17:01,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:01,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-12-07 00:17:01,583 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 22 [2021-12-07 00:17:01,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:17:01,583 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-12-07 00:17:01,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 20 states have internal predecessors, (30), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:01,584 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-12-07 00:17:01,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-07 00:17:01,585 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:17:01,585 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2021-12-07 00:17:01,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-07 00:17:01,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:17:01,787 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:17:01,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:01,789 INFO L85 PathProgramCache]: Analyzing trace with hash -665560147, now seen corresponding path program 3 times [2021-12-07 00:17:01,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:01,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106143970] [2021-12-07 00:17:01,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:01,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:02,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:02,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106143970] [2021-12-07 00:17:02,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106143970] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:17:02,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221851766] [2021-12-07 00:17:02,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-07 00:17:02,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:17:02,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:17:02,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 00:17:02,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-07 00:17:02,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-07 00:17:02,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 00:17:02,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-07 00:17:02,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:17:02,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-07 00:17:02,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-07 00:17:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-07 00:17:02,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:17:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-12-07 00:17:02,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221851766] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 00:17:02,510 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 00:17:02,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 42 [2021-12-07 00:17:02,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753978351] [2021-12-07 00:17:02,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 00:17:02,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-07 00:17:02,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:02,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-07 00:17:02,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2021-12-07 00:17:02,513 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 42 states, 32 states have (on average 1.28125) internal successors, (41), 25 states have internal predecessors, (41), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:02,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:17:02,971 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-12-07 00:17:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-07 00:17:02,972 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 32 states have (on average 1.28125) internal successors, (41), 25 states have internal predecessors, (41), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-12-07 00:17:02,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:17:02,972 INFO L225 Difference]: With dead ends: 50 [2021-12-07 00:17:02,972 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 00:17:02,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=683, Invalid=3873, Unknown=0, NotChecked=0, Total=4556 [2021-12-07 00:17:02,975 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:17:02,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 10 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:17:02,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 00:17:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 00:17:02,976 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) [2021-12-07 00:17:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 00:17:02,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-12-07 00:17:02,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:17:02,976 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:17:02,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 32 states have (on average 1.28125) internal successors, (41), 25 states have internal predecessors, (41), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:17:02,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 00:17:02,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 00:17:02,978 INFO L764 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:17:02,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-07 00:17:03,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 00:17:03,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-07 00:17:03,469 INFO L858 garLoopResultBuilder]: For program point fooEXIT(lines 11 20) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L854 garLoopResultBuilder]: At program point fooENTRY(lines 11 20) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= .cse0 17)) (<= .cse1 17)) (or (not (<= .cse0 13)) (<= .cse1 13)) (or (not (<= .cse0 12)) (<= .cse1 12)) (or (= .cse1 10) (not (= .cse0 10))) (or (not (<= .cse0 15)) (<= .cse1 15)) (or (not (<= .cse0 16)) (<= .cse1 16)) (or (not (< .cse0 21)) (< .cse1 21)) (or (not (<= .cse0 11)) (<= .cse1 11)) (or (<= .cse1 14) (not (<= .cse0 14))))) [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 19) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L854 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse2 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (< .cse0 21)) (and (< .cse1 21) (< .cse2 20))) (or (and (<= .cse1 12) (<= .cse2 12)) (not (<= .cse0 12))) (or (not (<= .cse0 17)) (<= .cse1 17)) (or (not (<= .cse0 13)) (and (<= .cse2 13) (<= .cse1 13))) (or (and (<= .cse2 11) (<= .cse1 11)) (not (<= .cse0 11))) (or (and (= .cse1 10) (= .cse2 10)) (not (= .cse0 10))) (or (and (<= .cse2 16) (<= .cse1 16)) (not (<= .cse0 16))) (or (not (<= .cse0 14)) (and (<= .cse2 14) (<= .cse1 14))) (or (not (<= .cse0 15)) (and (<= .cse2 15) (<= .cse1 15))))) [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 19) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point L12-1(lines 11 20) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-07 00:17:03,470 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L854 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 10) [2021-12-07 00:17:03,471 INFO L858 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L858 garLoopResultBuilder]: For program point L22(lines 22 28) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L858 garLoopResultBuilder]: For program point plusFINAL(lines 6 9) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L854 garLoopResultBuilder]: At program point plusENTRY(lines 6 9) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (< .cse0 20) (not (< .cse1 20))) (or (<= .cse0 16) (not (<= .cse1 16))) (or (not (<= .cse1 15)) (<= .cse0 15)) (or (not (<= .cse1 14)) (<= .cse0 14)) (or (not (= .cse1 10)) (= .cse0 10)) (or (<= .cse0 11) (not (<= .cse1 11))) (or (<= .cse0 13) (not (<= .cse1 13))) (or (<= .cse0 12) (not (<= .cse1 12))))) [2021-12-07 00:17:03,471 INFO L858 garLoopResultBuilder]: For program point plusEXIT(lines 6 9) no Hoare annotation was computed. [2021-12-07 00:17:03,471 INFO L854 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse2 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (and (or (not (<= .cse0 13)) (and (<= .cse1 14) (<= .cse2 14))) (or (and (<= .cse2 16) (<= .cse1 16)) (not (<= .cse0 15))) (or (< .cse2 21) (not (< .cse0 20))) (or (not (<= .cse0 16)) (and (< .cse1 20) (<= .cse2 17))) (or (and (<= .cse1 12) (<= .cse2 12)) (not (<= .cse0 11))) (or (not (= .cse0 10)) (and (<= .cse2 11) (<= .cse1 11))) (or (not (<= .cse0 14)) (and (<= .cse1 15) (<= .cse2 15))) (or (not (<= .cse0 12)) (and (<= .cse1 13) (<= .cse2 13))))) [2021-12-07 00:17:03,474 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1] [2021-12-07 00:17:03,475 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:17:03,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:17:03 BoogieIcfgContainer [2021-12-07 00:17:03,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:17:03,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:17:03,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:17:03,478 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:17:03,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:59" (3/4) ... [2021-12-07 00:17:03,480 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 00:17:03,484 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2021-12-07 00:17:03,484 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2021-12-07 00:17:03,486 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-12-07 00:17:03,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-07 00:17:03,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 00:17:03,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:17:03,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:17:03,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:17:03,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:17:03,507 INFO L158 Benchmark]: Toolchain (without parser) took 4484.56ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 100.4MB in the beginning and 106.0MB in the end (delta: -5.6MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2021-12-07 00:17:03,507 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:17:03,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.51ms. Allocated memory is still 138.4MB. Free memory was 100.2MB in the beginning and 90.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:17:03,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.04ms. Allocated memory is still 138.4MB. Free memory was 90.8MB in the beginning and 89.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:17:03,508 INFO L158 Benchmark]: Boogie Preprocessor took 13.69ms. Allocated memory is still 138.4MB. Free memory was 89.4MB in the beginning and 88.5MB in the end (delta: 917.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:17:03,508 INFO L158 Benchmark]: RCFGBuilder took 184.68ms. Allocated memory is still 138.4MB. Free memory was 88.3MB in the beginning and 78.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:17:03,508 INFO L158 Benchmark]: TraceAbstraction took 4072.63ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 78.4MB in the beginning and 108.1MB in the end (delta: -29.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2021-12-07 00:17:03,509 INFO L158 Benchmark]: Witness Printer took 29.27ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:17:03,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.51ms. Allocated memory is still 138.4MB. Free memory was 100.2MB in the beginning and 90.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.04ms. Allocated memory is still 138.4MB. Free memory was 90.8MB in the beginning and 89.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.69ms. Allocated memory is still 138.4MB. Free memory was 89.4MB in the beginning and 88.5MB in the end (delta: 917.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 184.68ms. Allocated memory is still 138.4MB. Free memory was 88.3MB in the beginning and 78.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4072.63ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 78.4MB in the beginning and 108.1MB in the end (delta: -29.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 29.27ms. Allocated memory is still 167.8MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: 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 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 137 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 457 IncrementalHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 38 mSDtfsCounter, 457 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1536 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=3, InterpolantAutomatonStates: 104, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 37 PreInvPairs, 37 NumberOfFragments, 675 HoareAnnotationTreeSize, 37 FomulaSimplifications, 232 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 204 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 1091 SizeOfPredicates, 42 NumberOfNonLiveVariables, 390 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 236/426 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 RESULT: Ultimate proved your program to be correct! [2021-12-07 00:17:03,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f03034f-d707-474e-97e6-8de6edd073c2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE