./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_47-refine-protected2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_47-refine-protected2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y --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 f7e90d4b6ab0561c00fafe8b5db7dd972e67889e2cb8e9e72502cd51ce4f0a76 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:46:06,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:46:06,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:46:06,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:46:06,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:46:06,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:46:06,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:46:06,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:46:06,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:46:06,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:46:06,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:46:06,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:46:06,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:46:06,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:46:06,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:46:06,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:46:06,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:46:06,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:46:06,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:46:06,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:46:06,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:46:06,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:46:06,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:46:06,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:46:06,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:46:06,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:46:06,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:46:06,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:46:06,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:46:06,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:46:06,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:46:06,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:46:06,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:46:06,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:46:06,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:46:06,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:46:06,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:46:06,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:46:06,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:46:06,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:46:06,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:46:06,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:46:06,955 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:46:06,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:46:06,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:46:06,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:46:06,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:46:06,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:46:06,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:46:06,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:46:06,960 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:46:06,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:46:06,960 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:46:06,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:46:06,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:46:06,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:46:06,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:46:06,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:46:06,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:46:06,963 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:46:06,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:46:06,968 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:46:06,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:46:06,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:46:06,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:46:06,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:46:06,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:46:06,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:46:06,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:46:06,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:46:06,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:46:06,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:46:06,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:46:06,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:46:06,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:46:06,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:46:06,972 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_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e90d4b6ab0561c00fafe8b5db7dd972e67889e2cb8e9e72502cd51ce4f0a76 [2021-11-13 18:46:07,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:46:07,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:46:07,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:46:07,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:46:07,309 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:46:07,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/goblint-regression/13-privatized_47-refine-protected2_true.i [2021-11-13 18:46:07,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/data/de818e2f4/caa9bd8bfd6149729cf713deeffaea71/FLAGfad845310 [2021-11-13 18:46:08,187 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:46:08,188 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/sv-benchmarks/c/goblint-regression/13-privatized_47-refine-protected2_true.i [2021-11-13 18:46:08,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/data/de818e2f4/caa9bd8bfd6149729cf713deeffaea71/FLAGfad845310 [2021-11-13 18:46:08,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/data/de818e2f4/caa9bd8bfd6149729cf713deeffaea71 [2021-11-13 18:46:08,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:46:08,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:46:08,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:46:08,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:46:08,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:46:08,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:46:08" (1/1) ... [2021-11-13 18:46:08,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8a1bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:08, skipping insertion in model container [2021-11-13 18:46:08,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:46:08" (1/1) ... [2021-11-13 18:46:08,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:46:08,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:46:08,752 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_9b5220b7-6af8-4232-bc56-3c47b6265738/sv-benchmarks/c/goblint-regression/13-privatized_47-refine-protected2_true.i[1094,1107] [2021-11-13 18:46:08,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:46:08,999 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:46:09,019 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_9b5220b7-6af8-4232-bc56-3c47b6265738/sv-benchmarks/c/goblint-regression/13-privatized_47-refine-protected2_true.i[1094,1107] [2021-11-13 18:46:09,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:46:09,135 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:46:09,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09 WrapperNode [2021-11-13 18:46:09,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:46:09,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:46:09,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:46:09,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:46:09,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:46:09,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:46:09,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:46:09,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:46:09,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:46:09,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:46:09,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:46:09,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:46:09,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (1/1) ... [2021-11-13 18:46:09,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:46:09,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:46:09,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:46:09,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:46:09,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:46:09,368 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 18:46:09,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:46:09,368 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-13 18:46:09,369 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-13 18:46:09,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:46:09,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:46:09,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:46:09,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:46:09,371 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:46:09,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:46:09,683 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:46:09,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:46:09 BoogieIcfgContainer [2021-11-13 18:46:09,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:46:09,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:46:09,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:46:09,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:46:09,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:46:08" (1/3) ... [2021-11-13 18:46:09,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8b4799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:46:09, skipping insertion in model container [2021-11-13 18:46:09,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:46:09" (2/3) ... [2021-11-13 18:46:09,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8b4799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:46:09, skipping insertion in model container [2021-11-13 18:46:09,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:46:09" (3/3) ... [2021-11-13 18:46:09,722 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_47-refine-protected2_true.i [2021-11-13 18:46:09,729 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:46:09,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:46:09,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 18:46:09,730 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:46:09,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,762 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,762 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,763 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,764 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,765 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,766 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,766 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,771 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,772 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:46:09,776 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 18:46:09,861 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:46:09,880 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 [2021-11-13 18:46:09,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 18:46:09,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 135 flow [2021-11-13 18:46:09,958 INFO L129 PetriNetUnfolder]: 3/64 cut-off events. [2021-11-13 18:46:09,959 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:46:09,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 3/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-11-13 18:46:09,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 65 transitions, 135 flow [2021-11-13 18:46:09,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 49 transitions, 101 flow [2021-11-13 18:46:09,988 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-11-13 18:46:09,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:46:09,989 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:46:09,990 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:46:09,990 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 18:46:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:46:10,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1222000642, now seen corresponding path program 1 times [2021-11-13 18:46:10,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:46:10,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891838006] [2021-11-13 18:46:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:46:10,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:46:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:46:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:46:10,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:46:10,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891838006] [2021-11-13 18:46:10,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891838006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:46:10,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:46:10,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:46:10,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105187233] [2021-11-13 18:46:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:46:10,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:46:10,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:46:10,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:46:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:46:10,367 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 65 [2021-11-13 18:46:10,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:46:10,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 65 [2021-11-13 18:46:10,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:46:10,428 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2021-11-13 18:46:10,428 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-13 18:46:10,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 65 events. 1/65 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 51. Up to 7 conditions per place. [2021-11-13 18:46:10,430 INFO L132 encePairwiseOnDemand]: 61/65 looper letters, 6 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-11-13 18:46:10,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 123 flow [2021-11-13 18:46:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:46:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:46:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2021-11-13 18:46:10,456 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.882051282051282 [2021-11-13 18:46:10,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2021-11-13 18:46:10,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2021-11-13 18:46:10,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:46:10,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2021-11-13 18:46:10,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,487 INFO L186 Difference]: Start difference. First operand has 53 places, 49 transitions, 101 flow. Second operand 3 states and 172 transitions. [2021-11-13 18:46:10,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 123 flow [2021-11-13 18:46:10,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 18:46:10,503 INFO L242 Difference]: Finished difference. Result has 56 places, 50 transitions, 118 flow [2021-11-13 18:46:10,506 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2021-11-13 18:46:10,521 INFO L334 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2021-11-13 18:46:10,522 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 118 flow [2021-11-13 18:46:10,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,524 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:46:10,524 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:46:10,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:46:10,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 18:46:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:46:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash 575588833, now seen corresponding path program 1 times [2021-11-13 18:46:10,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:46:10,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632770238] [2021-11-13 18:46:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:46:10,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:46:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:46:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:46:10,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:46:10,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632770238] [2021-11-13 18:46:10,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632770238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:46:10,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:46:10,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:46:10,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950247999] [2021-11-13 18:46:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:46:10,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:46:10,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:46:10,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:46:10,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:46:10,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 65 [2021-11-13 18:46:10,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:46:10,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 65 [2021-11-13 18:46:10,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:46:10,962 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-11-13 18:46:10,962 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-11-13 18:46:10,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 72 events. 2/72 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 160 event pairs, 0 based on Foata normal form. 3/75 useless extension candidates. Maximal degree in co-relation 86. Up to 12 conditions per place. [2021-11-13 18:46:10,963 INFO L132 encePairwiseOnDemand]: 59/65 looper letters, 11 selfloop transitions, 2 changer transitions 8/57 dead transitions. [2021-11-13 18:46:10,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 182 flow [2021-11-13 18:46:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:46:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-13 18:46:10,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 345 transitions. [2021-11-13 18:46:10,969 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7582417582417582 [2021-11-13 18:46:10,969 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 345 transitions. [2021-11-13 18:46:10,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 345 transitions. [2021-11-13 18:46:10,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:46:10,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 345 transitions. [2021-11-13 18:46:10,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 49.285714285714285) internal successors, (345), 7 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,977 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 65.0) internal successors, (520), 8 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,977 INFO L186 Difference]: Start difference. First operand has 56 places, 50 transitions, 118 flow. Second operand 7 states and 345 transitions. [2021-11-13 18:46:10,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 182 flow [2021-11-13 18:46:10,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 57 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:46:10,982 INFO L242 Difference]: Finished difference. Result has 65 places, 49 transitions, 124 flow [2021-11-13 18:46:10,982 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=124, PETRI_PLACES=65, PETRI_TRANSITIONS=49} [2021-11-13 18:46:10,984 INFO L334 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2021-11-13 18:46:10,984 INFO L470 AbstractCegarLoop]: Abstraction has has 65 places, 49 transitions, 124 flow [2021-11-13 18:46:10,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:10,985 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:46:10,985 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:46:10,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:46:10,986 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 18:46:10,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:46:10,987 INFO L85 PathProgramCache]: Analyzing trace with hash -863088477, now seen corresponding path program 1 times [2021-11-13 18:46:10,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:46:10,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645705482] [2021-11-13 18:46:10,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:46:10,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:46:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:46:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:46:11,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:46:11,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645705482] [2021-11-13 18:46:11,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645705482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:46:11,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:46:11,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:46:11,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108647604] [2021-11-13 18:46:11,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:46:11,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:46:11,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:46:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:46:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:46:11,052 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 65 [2021-11-13 18:46:11,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 49 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:46:11,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 65 [2021-11-13 18:46:11,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:46:11,087 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-11-13 18:46:11,087 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-13 18:46:11,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 46 events. 0/46 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-11-13 18:46:11,088 INFO L132 encePairwiseOnDemand]: 62/65 looper letters, 7 selfloop transitions, 3 changer transitions 2/44 dead transitions. [2021-11-13 18:46:11,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 44 transitions, 124 flow [2021-11-13 18:46:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:46:11,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:46:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2021-11-13 18:46:11,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2021-11-13 18:46:11,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 162 transitions. [2021-11-13 18:46:11,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 162 transitions. [2021-11-13 18:46:11,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:46:11,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 162 transitions. [2021-11-13 18:46:11,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,095 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,096 INFO L186 Difference]: Start difference. First operand has 65 places, 49 transitions, 124 flow. Second operand 3 states and 162 transitions. [2021-11-13 18:46:11,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 44 transitions, 124 flow [2021-11-13 18:46:11,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 118 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 18:46:11,099 INFO L242 Difference]: Finished difference. Result has 55 places, 42 transitions, 98 flow [2021-11-13 18:46:11,099 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2021-11-13 18:46:11,100 INFO L334 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2021-11-13 18:46:11,101 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 98 flow [2021-11-13 18:46:11,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,102 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:46:11,102 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:46:11,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:46:11,102 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 18:46:11,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:46:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash -455599698, now seen corresponding path program 1 times [2021-11-13 18:46:11,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:46:11,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793317048] [2021-11-13 18:46:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:46:11,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:46:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:46:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:46:11,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:46:11,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793317048] [2021-11-13 18:46:11,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793317048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:46:11,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:46:11,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:46:11,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308880406] [2021-11-13 18:46:11,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:46:11,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:46:11,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:46:11,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:46:11,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:46:11,176 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 65 [2021-11-13 18:46:11,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:46:11,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 65 [2021-11-13 18:46:11,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:46:11,219 INFO L129 PetriNetUnfolder]: 0/42 cut-off events. [2021-11-13 18:46:11,222 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-13 18:46:11,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 42 events. 0/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-11-13 18:46:11,224 INFO L132 encePairwiseOnDemand]: 61/65 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-11-13 18:46:11,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 40 transitions, 108 flow [2021-11-13 18:46:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:46:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-13 18:46:11,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 238 transitions. [2021-11-13 18:46:11,228 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7323076923076923 [2021-11-13 18:46:11,228 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 238 transitions. [2021-11-13 18:46:11,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 238 transitions. [2021-11-13 18:46:11,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:46:11,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 238 transitions. [2021-11-13 18:46:11,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,235 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,236 INFO L186 Difference]: Start difference. First operand has 55 places, 42 transitions, 98 flow. Second operand 5 states and 238 transitions. [2021-11-13 18:46:11,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 40 transitions, 108 flow [2021-11-13 18:46:11,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 40 transitions, 103 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:46:11,240 INFO L242 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2021-11-13 18:46:11,240 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2021-11-13 18:46:11,242 INFO L334 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2021-11-13 18:46:11,242 INFO L470 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2021-11-13 18:46:11,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:46:11,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-13 18:46:11,249 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-13 18:46:11,249 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2021-11-13 18:46:11,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:46:11,258 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 18:46:11,261 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 18:46:11,261 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:46:11,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:46:11 BasicIcfg [2021-11-13 18:46:11,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:46:11,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:46:11,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:46:11,271 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:46:11,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:46:09" (3/4) ... [2021-11-13 18:46:11,275 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:46:11,283 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-13 18:46:11,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-13 18:46:11,293 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 18:46:11,293 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:46:11,293 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:46:11,351 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:46:11,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:46:11,355 INFO L158 Benchmark]: Toolchain (without parser) took 2944.11ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 82.5MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,355 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:46:11,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.52ms. Allocated memory is still 136.3MB. Free memory was 100.2MB in the beginning and 104.6MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.85ms. Allocated memory is still 136.3MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,359 INFO L158 Benchmark]: Boogie Preprocessor took 52.02ms. Allocated memory is still 136.3MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,360 INFO L158 Benchmark]: RCFGBuilder took 414.83ms. Allocated memory is still 136.3MB. Free memory was 101.1MB in the beginning and 90.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,360 INFO L158 Benchmark]: TraceAbstraction took 1567.49ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 85.5MB in the end (delta: 3.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,361 INFO L158 Benchmark]: Witness Printer took 83.20ms. Allocated memory is still 136.3MB. Free memory was 85.5MB in the beginning and 82.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:46:11,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.52ms. Allocated memory is still 136.3MB. Free memory was 100.2MB in the beginning and 104.6MB in the end (delta: -4.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.85ms. Allocated memory is still 136.3MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.02ms. Allocated memory is still 136.3MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.83ms. Allocated memory is still 136.3MB. Free memory was 101.1MB in the beginning and 90.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1567.49ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 85.5MB in the end (delta: 3.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 83.20ms. Allocated memory is still 136.3MB. Free memory was 85.5MB in the beginning and 82.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 with 1 thread instances CFG has 3 procedures, 72 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 78.79ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 61.53ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 26 mSDtfsCounter, 55 mSolverCounterSat, 2.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 18:46:11,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5220b7-6af8-4232-bc56-3c47b6265738/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE