./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/locks/test_locks_14-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN --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 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:43:17,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:43:17,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:43:17,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:43:17,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:43:17,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:43:17,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:43:17,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:43:17,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:43:17,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:43:17,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:43:17,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:43:17,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:43:17,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:43:17,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:43:17,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:43:17,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:43:17,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:43:17,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:43:17,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:43:17,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:43:17,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:43:17,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:43:17,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:43:17,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:43:17,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:43:17,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:43:17,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:43:17,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:43:17,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:43:17,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:43:17,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:43:17,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:43:17,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:43:17,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:43:17,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:43:17,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:43:17,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:43:17,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:43:17,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:43:17,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:43:17,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:43:18,029 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:43:18,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:43:18,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:43:18,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:43:18,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:43:18,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:43:18,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:43:18,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:43:18,033 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:43:18,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:43:18,034 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:43:18,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:43:18,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:43:18,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:43:18,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:43:18,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:43:18,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:43:18,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:43:18,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:43:18,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:43:18,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:43:18,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:43:18,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:43:18,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:43:18,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:43:18,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:43:18,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:43:18,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:43:18,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:43:18,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:43:18,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:43:18,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:43:18,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:43:18,040 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_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2022-11-20 12:43:18,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:43:18,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:43:18,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:43:18,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:43:18,364 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:43:18,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/locks/test_locks_14-2.c [2022-11-20 12:43:21,671 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:43:21,918 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:43:21,919 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/sv-benchmarks/c/locks/test_locks_14-2.c [2022-11-20 12:43:21,928 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/data/4d6484a0f/5041c84a2cc24b268aaf5fe52cbdcc4c/FLAGda4fc2eb0 [2022-11-20 12:43:21,953 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/data/4d6484a0f/5041c84a2cc24b268aaf5fe52cbdcc4c [2022-11-20 12:43:21,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:43:21,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:43:21,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:43:21,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:43:21,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:43:21,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:43:21" (1/1) ... [2022-11-20 12:43:21,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb576f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:21, skipping insertion in model container [2022-11-20 12:43:21,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:43:21" (1/1) ... [2022-11-20 12:43:21,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:43:22,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:43:22,281 WARN L237 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_42fbf566-46a0-4593-8e73-aa275713307c/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-11-20 12:43:22,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:22,303 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:43:22,359 WARN L237 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_42fbf566-46a0-4593-8e73-aa275713307c/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2022-11-20 12:43:22,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:43:22,395 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:43:22,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22 WrapperNode [2022-11-20 12:43:22,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:43:22,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:43:22,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:43:22,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:43:22,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,479 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 184 [2022-11-20 12:43:22,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:43:22,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:43:22,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:43:22,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:43:22,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:43:22,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:43:22,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:43:22,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:43:22,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (1/1) ... [2022-11-20 12:43:22,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:43:22,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:43:22,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:43:22,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:43:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:43:22,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:43:22,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:43:22,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:43:22,766 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:43:22,768 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:43:23,175 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:43:23,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:43:23,182 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:43:23,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:43:23 BoogieIcfgContainer [2022-11-20 12:43:23,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:43:23,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:43:23,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:43:23,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:43:23,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:43:21" (1/3) ... [2022-11-20 12:43:23,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661b409a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:43:23, skipping insertion in model container [2022-11-20 12:43:23,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:43:22" (2/3) ... [2022-11-20 12:43:23,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661b409a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:43:23, skipping insertion in model container [2022-11-20 12:43:23,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:43:23" (3/3) ... [2022-11-20 12:43:23,195 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2022-11-20 12:43:23,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:43:23,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:43:23,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:43:23,294 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b7741a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:43:23,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:43:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.92) internal successors, (96), 51 states have internal predecessors, (96), 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) [2022-11-20 12:43:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:43:23,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:23,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:23,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2022-11-20 12:43:23,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:23,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146916116] [2022-11-20 12:43:23,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:23,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:23,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:23,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146916116] [2022-11-20 12:43:23,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146916116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:23,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:23,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:43:23,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406271001] [2022-11-20 12:43:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:23,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:43:23,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:43:23,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:23,681 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.92) internal successors, (96), 51 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:23,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:23,736 INFO L93 Difference]: Finished difference Result 107 states and 193 transitions. [2022-11-20 12:43:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:43:23,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 12:43:23,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:43:23,751 INFO L225 Difference]: With dead ends: 107 [2022-11-20 12:43:23,752 INFO L226 Difference]: Without dead ends: 93 [2022-11-20 12:43:23,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:23,760 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:43:23,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 186 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:43:23,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-20 12:43:23,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2022-11-20 12:43:23,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2022-11-20 12:43:23,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2022-11-20 12:43:23,806 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2022-11-20 12:43:23,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:43:23,807 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2022-11-20 12:43:23,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:23,808 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2022-11-20 12:43:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:43:23,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:23,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:23,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:43:23,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:23,811 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2022-11-20 12:43:23,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:23,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324876571] [2022-11-20 12:43:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:23,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:23,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:23,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324876571] [2022-11-20 12:43:23,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324876571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:23,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:23,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:43:23,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463177412] [2022-11-20 12:43:23,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:23,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:43:23,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:43:23,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:23,958 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:24,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:24,005 INFO L93 Difference]: Finished difference Result 155 states and 291 transitions. [2022-11-20 12:43:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:43:24,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 12:43:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:43:24,008 INFO L225 Difference]: With dead ends: 155 [2022-11-20 12:43:24,009 INFO L226 Difference]: Without dead ends: 94 [2022-11-20 12:43:24,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:24,011 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:43:24,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:43:24,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-20 12:43:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-11-20 12:43:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 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) [2022-11-20 12:43:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2022-11-20 12:43:24,032 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2022-11-20 12:43:24,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:43:24,034 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2022-11-20 12:43:24,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2022-11-20 12:43:24,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:43:24,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:24,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:24,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:43:24,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:24,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:24,038 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2022-11-20 12:43:24,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:24,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995653540] [2022-11-20 12:43:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:24,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:24,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:24,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:24,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995653540] [2022-11-20 12:43:24,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995653540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:24,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:24,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:43:24,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176239814] [2022-11-20 12:43:24,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:24,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:43:24,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:24,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:43:24,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:24,171 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:24,213 INFO L93 Difference]: Finished difference Result 143 states and 261 transitions. [2022-11-20 12:43:24,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:43:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 12:43:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:43:24,215 INFO L225 Difference]: With dead ends: 143 [2022-11-20 12:43:24,216 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 12:43:24,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:24,217 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:43:24,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:43:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 12:43:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-11-20 12:43:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 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) [2022-11-20 12:43:24,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2022-11-20 12:43:24,229 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2022-11-20 12:43:24,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:43:24,229 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2022-11-20 12:43:24,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:24,230 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2022-11-20 12:43:24,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:43:24,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:24,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:24,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:43:24,231 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2022-11-20 12:43:24,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:24,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256430432] [2022-11-20 12:43:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:24,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:43:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:43:24,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:43:24,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256430432] [2022-11-20 12:43:24,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256430432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:43:24,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:43:24,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:43:24,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404978109] [2022-11-20 12:43:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:43:24,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:43:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:43:24,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:43:24,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:24,287 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:43:24,306 INFO L93 Difference]: Finished difference Result 216 states and 398 transitions. [2022-11-20 12:43:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:43:24,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-20 12:43:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:43:24,308 INFO L225 Difference]: With dead ends: 216 [2022-11-20 12:43:24,308 INFO L226 Difference]: Without dead ends: 127 [2022-11-20 12:43:24,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:43:24,311 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:43:24,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:43:24,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-20 12:43:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-11-20 12:43:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2022-11-20 12:43:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2022-11-20 12:43:24,323 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2022-11-20 12:43:24,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:43:24,323 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2022-11-20 12:43:24,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-20 12:43:24,324 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2022-11-20 12:43:24,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 12:43:24,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:43:24,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:43:24,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:43:24,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:43:24,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:43:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2022-11-20 12:43:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:43:24,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202466158] [2022-11-20 12:43:24,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:43:24,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:43:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:24,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:43:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:43:24,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:43:24,373 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:43:24,374 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:43:24,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:43:24,379 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 12:43:24,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:43:24,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:43:24 BoogieIcfgContainer [2022-11-20 12:43:24,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:43:24,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:43:24,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:43:24,439 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:43:24,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:43:23" (3/4) ... [2022-11-20 12:43:24,442 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:43:24,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:43:24,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:43:24,507 INFO L158 Benchmark]: Toolchain (without parser) took 2544.60ms. Allocated memory is still 182.5MB. Free memory was 153.5MB in the beginning and 53.8MB in the end (delta: 99.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,507 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:43:24,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.52ms. Allocated memory is still 182.5MB. Free memory was 153.5MB in the beginning and 142.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.45ms. Allocated memory is still 182.5MB. Free memory was 142.4MB in the beginning and 140.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,508 INFO L158 Benchmark]: Boogie Preprocessor took 66.14ms. Allocated memory is still 182.5MB. Free memory was 140.3MB in the beginning and 138.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,509 INFO L158 Benchmark]: RCFGBuilder took 635.87ms. Allocated memory is still 182.5MB. Free memory was 138.7MB in the beginning and 121.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,509 INFO L158 Benchmark]: TraceAbstraction took 1251.02ms. Allocated memory is still 182.5MB. Free memory was 120.9MB in the beginning and 58.0MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,510 INFO L158 Benchmark]: Witness Printer took 67.63ms. Allocated memory is still 182.5MB. Free memory was 58.0MB in the beginning and 53.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:43:24,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.52ms. Allocated memory is still 182.5MB. Free memory was 153.5MB in the beginning and 142.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.45ms. Allocated memory is still 182.5MB. Free memory was 142.4MB in the beginning and 140.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.14ms. Allocated memory is still 182.5MB. Free memory was 140.3MB in the beginning and 138.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 635.87ms. Allocated memory is still 182.5MB. Free memory was 138.7MB in the beginning and 121.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1251.02ms. Allocated memory is still 182.5MB. Free memory was 120.9MB in the beginning and 58.0MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 67.63ms. Allocated memory is still 182.5MB. Free memory was 58.0MB in the beginning and 53.8MB in the end (delta: 4.2MB). 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 - CounterExampleResult [Line: 219]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L96] COND FALSE !(p3 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L128] COND FALSE !(p11 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L219] reach_error() VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 282 mSDsluCounter, 733 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 286 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 447 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:43:24,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fbf566-46a0-4593-8e73-aa275713307c/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE