./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8 --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 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 --- 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-2329fc7 [2022-12-13 17:08:43,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:08:43,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:08:43,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:08:43,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:08:43,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:08:43,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:08:43,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:08:43,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:08:43,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:08:43,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:08:43,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:08:43,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:08:43,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:08:43,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:08:43,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:08:43,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:08:43,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:08:43,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:08:43,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:08:43,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:08:43,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:08:43,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:08:43,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:08:43,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:08:43,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:08:43,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:08:43,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:08:43,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:08:43,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:08:43,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:08:43,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:08:43,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:08:43,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:08:43,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:08:43,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:08:43,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:08:43,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:08:43,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:08:43,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:08:43,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:08:43,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 17:08:43,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:08:43,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:08:43,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:08:43,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:08:43,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:08:43,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:08:43,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:08:43,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:08:43,320 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:08:43,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:08:43,320 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:08:43,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:08:43,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:08:43,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:08:43,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:08:43,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:08:43,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:08:43,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:08:43,323 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:08:43,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:08:43,323 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:08:43,323 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 [2022-12-13 17:08:43,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:08:43,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:08:43,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:08:43,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:08:43,505 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:08:43,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-13 17:08:46,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:08:46,319 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:08:46,319 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-13 17:08:46,330 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/data/1f0fea331/d1a47116b1244cbc83cac276c535e6b2/FLAG594c39e39 [2022-12-13 17:08:46,341 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/data/1f0fea331/d1a47116b1244cbc83cac276c535e6b2 [2022-12-13 17:08:46,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:08:46,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:08:46,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:08:46,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:08:46,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:08:46,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b6d5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46, skipping insertion in model container [2022-12-13 17:08:46,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:08:46,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:08:46,511 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_4f005387-57e8-4c45-a464-9b6bb7050738/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-12-13 17:08:46,703 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 17:08:46,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:08:46,714 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:08:46,722 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_4f005387-57e8-4c45-a464-9b6bb7050738/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-12-13 17:08:46,748 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-13 17:08:46,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:08:46,798 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:08:46,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46 WrapperNode [2022-12-13 17:08:46,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:08:46,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:08:46,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:08:46,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:08:46,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,835 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-13 17:08:46,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:08:46,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:08:46,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:08:46,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:08:46,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,856 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:08:46,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:08:46,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:08:46,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:08:46,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (1/1) ... [2022-12-13 17:08:46,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:08:46,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:08:46,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:08:46,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:08:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-13 17:08:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-13 17:08:46,921 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-13 17:08:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-13 17:08:46,921 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:08:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:08:46,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:08:46,924 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:08:47,151 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:08:47,153 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:08:47,277 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:08:47,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:08:47,285 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:08:47,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:08:47 BoogieIcfgContainer [2022-12-13 17:08:47,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:08:47,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:08:47,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:08:47,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:08:47,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:08:46" (1/3) ... [2022-12-13 17:08:47,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29417504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:08:47, skipping insertion in model container [2022-12-13 17:08:47,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:08:46" (2/3) ... [2022-12-13 17:08:47,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29417504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:08:47, skipping insertion in model container [2022-12-13 17:08:47,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:08:47" (3/3) ... [2022-12-13 17:08:47,296 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-13 17:08:47,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:08:47,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:08:47,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:08:47,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:08:47,356 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 17:08:47,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 94 transitions, 204 flow [2022-12-13 17:08:47,416 INFO L130 PetriNetUnfolder]: 1/92 cut-off events. [2022-12-13 17:08:47,416 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:08:47,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 1/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-12-13 17:08:47,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 94 transitions, 204 flow [2022-12-13 17:08:47,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 74 transitions, 157 flow [2022-12-13 17:08:47,425 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:08:47,433 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 74 transitions, 157 flow [2022-12-13 17:08:47,435 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 74 transitions, 157 flow [2022-12-13 17:08:47,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 74 transitions, 157 flow [2022-12-13 17:08:47,452 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2022-12-13 17:08:47,452 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:08:47,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 17:08:47,453 INFO L119 LiptonReduction]: Number of co-enabled transitions 588 [2022-12-13 17:08:50,403 INFO L134 LiptonReduction]: Checked pairs total: 1141 [2022-12-13 17:08:50,403 INFO L136 LiptonReduction]: Total number of compositions: 59 [2022-12-13 17:08:50,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:08:50,418 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;@19c26da5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:08:50,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 17:08:50,421 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 17:08:50,421 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:08:50,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:08:50,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:08:50,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 17:08:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:08:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash 640791037, now seen corresponding path program 1 times [2022-12-13 17:08:50,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:08:50,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819603924] [2022-12-13 17:08:50,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:08:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:08:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:08:50,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:08:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:08:50,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:08:50,645 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:08:50,645 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 17:08:50,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 17:08:50,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 17:08:50,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 17:08:50,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:08:50,648 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 17:08:50,655 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:08:50,655 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:08:50,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:08:50 BasicIcfg [2022-12-13 17:08:50,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:08:50,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:08:50,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:08:50,676 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:08:50,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:08:47" (3/4) ... [2022-12-13 17:08:50,678 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 17:08:50,711 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:08:50,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:08:50,712 INFO L158 Benchmark]: Toolchain (without parser) took 4367.58ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 105.9MB in the beginning and 100.9MB in the end (delta: 5.1MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,712 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:08:50,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.62ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 68.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.13ms. Allocated memory is still 140.5MB. Free memory was 68.2MB in the beginning and 65.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,713 INFO L158 Benchmark]: Boogie Preprocessor took 24.70ms. Allocated memory is still 140.5MB. Free memory was 65.0MB in the beginning and 62.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,713 INFO L158 Benchmark]: RCFGBuilder took 426.37ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 62.9MB in the beginning and 130.6MB in the end (delta: -67.6MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,714 INFO L158 Benchmark]: TraceAbstraction took 3385.17ms. Allocated memory is still 172.0MB. Free memory was 129.6MB in the beginning and 104.0MB in the end (delta: 25.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,714 INFO L158 Benchmark]: Witness Printer took 35.40ms. Allocated memory is still 172.0MB. Free memory was 104.0MB in the beginning and 100.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:08:50,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.62ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 68.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.13ms. Allocated memory is still 140.5MB. Free memory was 68.2MB in the beginning and 65.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.70ms. Allocated memory is still 140.5MB. Free memory was 65.0MB in the beginning and 62.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.37ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 62.9MB in the beginning and 130.6MB in the end (delta: -67.6MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3385.17ms. Allocated memory is still 172.0MB. Free memory was 129.6MB in the beginning and 104.0MB in the end (delta: 25.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 35.40ms. Allocated memory is still 172.0MB. Free memory was 104.0MB in the beginning and 100.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 81 PlacesBefore, 22 PlacesAfterwards, 74 TransitionsBefore, 15 TransitionsAfterwards, 588 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 1141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 721, independent: 626, independent conditional: 0, independent unconditional: 626, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 320, independent: 300, independent conditional: 0, independent unconditional: 300, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 721, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 320, unknown conditional: 0, unknown unconditional: 320] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 126 locations, 4 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: 3.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-13 17:08:50,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f005387-57e8-4c45-a464-9b6bb7050738/bin/uautomizer-uyxdKDjOR8/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