./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0 --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- 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-dbf71c6-m [2022-10-17 16:10:46,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:10:46,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:10:46,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:10:46,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:10:46,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:10:46,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:10:46,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:10:46,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:10:46,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:10:46,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:10:46,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:10:46,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:10:46,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:10:46,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:10:46,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:10:46,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:10:46,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:10:46,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:10:46,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:10:46,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:10:46,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:10:46,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:10:46,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:10:46,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:10:46,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:10:46,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:10:46,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:10:46,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:10:46,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:10:46,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:10:46,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:10:46,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:10:46,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:10:46,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:10:46,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:10:46,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:10:46,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:10:46,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:10:46,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:10:46,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:10:46,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-10-17 16:10:46,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:10:46,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:10:46,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 16:10:46,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 16:10:46,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:10:46,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 16:10:46,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:10:46,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:10:46,398 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 16:10:46,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:10:46,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:10:46,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:10:46,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:10:46,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:10:46,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:10:46,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:10:46,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:10:46,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:10:46,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:10:46,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:10:46,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:10:46,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:10:46,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 16:10:46,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-17 16:10:46,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 16:10:46,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 16:10:46,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:10:46,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:10:46,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:10:46,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 16:10:46,405 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-10-17 16:10:46,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:10:46,405 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 16:10:46,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-17 16:10:46,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:10:46,406 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-10-17 16:10:46,406 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-10-17 16:10:46,406 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_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2022-10-17 16:10:46,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:10:46,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:10:46,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:10:46,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:10:46,762 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:10:46,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2022-10-17 16:10:46,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/data/931f74e94/0f2bf66589414b19a1f2bb151848e376/FLAGe3b4bebe6 [2022-10-17 16:10:47,388 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:10:47,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/sv-benchmarks/c/pthread-atomic/szymanski.i [2022-10-17 16:10:47,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/data/931f74e94/0f2bf66589414b19a1f2bb151848e376/FLAGe3b4bebe6 [2022-10-17 16:10:47,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/data/931f74e94/0f2bf66589414b19a1f2bb151848e376 [2022-10-17 16:10:47,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:10:47,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:10:47,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:10:47,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:10:47,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:10:47,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:10:47" (1/1) ... [2022-10-17 16:10:47,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3b0abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:47, skipping insertion in model container [2022-10-17 16:10:47,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:10:47" (1/1) ... [2022-10-17 16:10:47,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:10:47,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:10:48,028 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 16:10:48,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2022-10-17 16:10:48,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2022-10-17 16:10:48,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:10:48,269 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:10:48,298 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-10-17 16:10:48,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2022-10-17 16:10:48,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2022-10-17 16:10:48,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:10:48,394 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:10:48,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48 WrapperNode [2022-10-17 16:10:48,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:10:48,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:10:48,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:10:48,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:10:48,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,460 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-10-17 16:10:48,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:10:48,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:10:48,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:10:48,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:10:48,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,517 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:10:48,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:10:48,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:10:48,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:10:48,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (1/1) ... [2022-10-17 16:10:48,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 16:10:48,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:48,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:48,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 16:10:48,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:10:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-10-17 16:10:48,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-10-17 16:10:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-10-17 16:10:48,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-10-17 16:10:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:10:48,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 16:10:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:10:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:10:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:10:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:10:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 16:10:48,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:10:48,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:10:48,616 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 16:10:48,806 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:10:48,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:10:49,127 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:10:49,135 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:10:49,135 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-17 16:10:49,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:10:49 BoogieIcfgContainer [2022-10-17 16:10:49,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:10:49,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 16:10:49,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 16:10:49,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 16:10:49,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 04:10:47" (1/3) ... [2022-10-17 16:10:49,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ac7808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 04:10:49, skipping insertion in model container [2022-10-17 16:10:49,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:10:48" (2/3) ... [2022-10-17 16:10:49,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ac7808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 04:10:49, skipping insertion in model container [2022-10-17 16:10:49,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:10:49" (3/3) ... [2022-10-17 16:10:49,148 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2022-10-17 16:10:49,157 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 16:10:49,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 16:10:49,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 16:10:49,168 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 16:10:49,257 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-17 16:10:49,333 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:49,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-17 16:10:49,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:49,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:49,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-17 16:10:49,445 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-17 16:10:49,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2022-10-17 16:10:49,487 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=PARTIAL_ORDER_FA, 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;@70fde738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:49,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 16:10:49,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:49,772 INFO L85 PathProgramCache]: Analyzing trace with hash -58264200, now seen corresponding path program 1 times [2022-10-17 16:10:49,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:49,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464058685] [2022-10-17 16:10:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:49,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:50,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:50,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464058685] [2022-10-17 16:10:50,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464058685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:50,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:50,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 16:10:50,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014376876] [2022-10-17 16:10:50,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:50,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 16:10:50,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:50,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 16:10:50,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 16:10:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,058 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:50,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2022-10-17 16:10:50,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 16:10:50,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:50,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:50,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1915834699, now seen corresponding path program 1 times [2022-10-17 16:10:50,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:50,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141150304] [2022-10-17 16:10:50,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:50,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:50,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:50,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141150304] [2022-10-17 16:10:50,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141150304] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:50,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:50,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 16:10:50,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930945087] [2022-10-17 16:10:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:50,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 16:10:50,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:50,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 16:10:50,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 16:10:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:50,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-10-17 16:10:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:50,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 16:10:50,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1109210411, now seen corresponding path program 1 times [2022-10-17 16:10:50,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:50,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6543233] [2022-10-17 16:10:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:50,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:50,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:50,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6543233] [2022-10-17 16:10:50,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6543233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:50,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:50,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 16:10:50,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168077091] [2022-10-17 16:10:50,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:50,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 16:10:50,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:50,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 16:10:50,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 16:10:50,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,575 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:50,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-10-17 16:10:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:50,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:50,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 16:10:50,648 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:50,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:50,649 INFO L85 PathProgramCache]: Analyzing trace with hash 2119832292, now seen corresponding path program 1 times [2022-10-17 16:10:50,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:50,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665483658] [2022-10-17 16:10:50,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:50,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:50,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:50,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665483658] [2022-10-17 16:10:50,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665483658] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 16:10:50,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208167354] [2022-10-17 16:10:50,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:50,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:50,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:50,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 16:10:50,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 16:10:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:50,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 16:10:50,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:10:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 16:10:51,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 16:10:51,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208167354] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:51,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 16:10:51,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-17 16:10:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256052146] [2022-10-17 16:10:51,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:51,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 16:10:51,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 16:10:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 16:10:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,026 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:51,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2022-10-17 16:10:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:51,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:51,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:51,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:51,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1343086663, now seen corresponding path program 1 times [2022-10-17 16:10:51,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:51,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595444222] [2022-10-17 16:10:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:51,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:51,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:51,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595444222] [2022-10-17 16:10:51,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595444222] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 16:10:51,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907218142] [2022-10-17 16:10:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:51,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:51,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:51,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 16:10:51,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 16:10:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:51,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:10:51,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:10:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:51,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 16:10:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:51,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907218142] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 16:10:51,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 16:10:51,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-17 16:10:51,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611557906] [2022-10-17 16:10:51,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 16:10:51,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 16:10:51,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:51,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 16:10:51,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-17 16:10:51,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,783 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:51,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2022-10-17 16:10:51,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:51,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:51,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:51,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:51,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:53,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:53,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:53,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 16:10:53,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:53,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:53,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:53,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 642588033, now seen corresponding path program 1 times [2022-10-17 16:10:53,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:53,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497478074] [2022-10-17 16:10:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:53,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:53,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:53,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:53,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497478074] [2022-10-17 16:10:53,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497478074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:53,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:53,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 16:10:53,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989550223] [2022-10-17 16:10:53,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:53,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 16:10:53,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:53,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 16:10:53,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 16:10:53,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:53,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:53,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-10-17 16:10:53,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:53,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:53,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:53,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:53,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-17 16:10:53,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 16:10:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 16:10:54,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 16:10:54,159 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 16:10:54,161 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/3) [2022-10-17 16:10:54,166 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:54,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-17 16:10:54,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:54,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:54,197 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-17 16:10:54,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-10-17 16:10:54,198 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=PARTIAL_ORDER_FA, 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;@70fde738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:54,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 16:10:54,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-17 16:10:54,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2022-10-17 16:10:54,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-10-17 16:10:54,262 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-17 16:10:54,263 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2022-10-17 16:10:54,266 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:54,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-17 16:10:54,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:54,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-17 16:10:54,274 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-17 16:10:54,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-17 16:10:54,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork1 ======== [2022-10-17 16:10:54,276 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=PARTIAL_ORDER_FA, 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;@70fde738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 16:10:54,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 16:10:54,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:54,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:54,374 INFO L85 PathProgramCache]: Analyzing trace with hash -851493314, now seen corresponding path program 1 times [2022-10-17 16:10:54,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:54,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375737364] [2022-10-17 16:10:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:54,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:54,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:54,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375737364] [2022-10-17 16:10:54,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375737364] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:54,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:54,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 16:10:54,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445903949] [2022-10-17 16:10:54,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:54,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 16:10:54,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:54,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 16:10:54,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 16:10:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,408 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:54,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2022-10-17 16:10:54,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 16:10:54,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:54,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:54,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1788967590, now seen corresponding path program 1 times [2022-10-17 16:10:54,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:54,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389227031] [2022-10-17 16:10:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:54,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:10:54,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:54,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389227031] [2022-10-17 16:10:54,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389227031] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:54,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:54,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 16:10:54,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438667150] [2022-10-17 16:10:54,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:54,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 16:10:54,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:54,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 16:10:54,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 16:10:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,502 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:54,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-10-17 16:10:54,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 16:10:54,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:54,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash -646389552, now seen corresponding path program 1 times [2022-10-17 16:10:54,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:54,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88328155] [2022-10-17 16:10:54,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:54,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:54,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:54,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:54,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88328155] [2022-10-17 16:10:54,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88328155] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:54,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 16:10:54,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 16:10:54,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141971614] [2022-10-17 16:10:54,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:54,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 16:10:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:54,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 16:10:54,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 16:10:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,634 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:54,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-10-17 16:10:54,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 16:10:54,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:54,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:54,702 INFO L85 PathProgramCache]: Analyzing trace with hash -869385719, now seen corresponding path program 1 times [2022-10-17 16:10:54,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:54,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386780724] [2022-10-17 16:10:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:54,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:54,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386780724] [2022-10-17 16:10:54,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386780724] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 16:10:54,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34009646] [2022-10-17 16:10:54,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:54,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:54,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:54,783 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 16:10:54,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 16:10:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:54,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 16:10:54,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:10:54,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 16:10:54,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 16:10:54,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34009646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:54,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 16:10:54,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-17 16:10:54,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452504245] [2022-10-17 16:10:54,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:54,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 16:10:54,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:54,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 16:10:54,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 16:10:54,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,890 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:54,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2022-10-17 16:10:54,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:54,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:54,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:55,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-17 16:10:55,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash -838909526, now seen corresponding path program 1 times [2022-10-17 16:10:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:55,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610969279] [2022-10-17 16:10:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:55,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:55,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:55,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610969279] [2022-10-17 16:10:55,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610969279] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 16:10:55,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581511290] [2022-10-17 16:10:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:55,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:55,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:55,216 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 16:10:55,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 16:10:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:55,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 16:10:55,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:10:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:10:55,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 16:10:55,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581511290] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 16:10:55,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 16:10:55,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-17 16:10:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908896675] [2022-10-17 16:10:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 16:10:55,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 16:10:55,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 16:10:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 16:10:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:55,323 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:55,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2022-10-17 16:10:55,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:55,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:55,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:55,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:55,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:55,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:55,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:55,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:55,619 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 16:10:55,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:10:55,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2082366148, now seen corresponding path program 2 times [2022-10-17 16:10:55,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 16:10:55,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143819055] [2022-10-17 16:10:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 16:10:55,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:10:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:10:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:55,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 16:10:55,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143819055] [2022-10-17 16:10:55,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143819055] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 16:10:55,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294882771] [2022-10-17 16:10:55,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 16:10:55,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:55,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 [2022-10-17 16:10:55,685 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 16:10:55,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 16:10:55,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 16:10:55,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 16:10:55,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:10:55,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:10:55,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:55,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 16:10:55,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:10:55,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294882771] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 16:10:55,859 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 16:10:55,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-17 16:10:55,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852156199] [2022-10-17 16:10:55,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 16:10:55,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 16:10:55,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 16:10:55,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 16:10:55,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-17 16:10:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:55,862 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-17 16:10:55,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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) [2022-10-17 16:10:55,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:55,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:55,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:55,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:55,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:55,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:57,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 16:10:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 16:10:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 16:10:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-17 16:10:57,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 16:10:57,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:57,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 16:10:57,790 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-10-17 16:10:57,790 INFO L307 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork1 was SAFE (3/3) [2022-10-17 16:10:57,791 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 16:10:57,791 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 16:10:57,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 04:10:57 BasicIcfg [2022-10-17 16:10:57,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 16:10:57,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:10:57,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:10:57,796 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:10:57,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:10:49" (3/4) ... [2022-10-17 16:10:57,800 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:10:57,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2022-10-17 16:10:57,807 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-10-17 16:10:57,811 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-10-17 16:10:57,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 16:10:57,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 16:10:57,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:10:57,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/witness.graphml [2022-10-17 16:10:57,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:10:57,839 INFO L158 Benchmark]: Toolchain (without parser) took 10171.26ms. Allocated memory was 83.9MB in the beginning and 163.6MB in the end (delta: 79.7MB). Free memory was 44.4MB in the beginning and 41.8MB in the end (delta: 2.6MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2022-10-17 16:10:57,839 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:10:57,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 720.97ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 44.2MB in the beginning and 73.8MB in the end (delta: -29.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-10-17 16:10:57,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.61ms. Allocated memory is still 109.1MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:10:57,841 INFO L158 Benchmark]: Boogie Preprocessor took 60.15ms. Allocated memory is still 109.1MB. Free memory was 71.7MB in the beginning and 70.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:10:57,841 INFO L158 Benchmark]: RCFGBuilder took 615.62ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 55.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:10:57,842 INFO L158 Benchmark]: TraceAbstraction took 8655.09ms. Allocated memory was 109.1MB in the beginning and 163.6MB in the end (delta: 54.5MB). Free memory was 55.0MB in the beginning and 44.7MB in the end (delta: 10.2MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2022-10-17 16:10:57,842 INFO L158 Benchmark]: Witness Printer took 42.32ms. Allocated memory is still 163.6MB. Free memory was 44.7MB in the beginning and 41.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:10:57,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 720.97ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 44.2MB in the beginning and 73.8MB in the end (delta: -29.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.61ms. Allocated memory is still 109.1MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.15ms. Allocated memory is still 109.1MB. Free memory was 71.7MB in the beginning and 70.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 615.62ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 55.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8655.09ms. Allocated memory was 109.1MB in the beginning and 163.6MB in the end (delta: 54.5MB). Free memory was 55.0MB in the beginning and 44.7MB in the end (delta: 10.2MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Witness Printer took 42.32ms. Allocated memory is still 163.6MB. Free memory was 44.7MB in the beginning and 41.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 45038, positive: 33165, positive conditional: 29579, positive unconditional: 3586, negative: 11873, negative conditional: 11711, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34576, positive: 33165, positive conditional: 29579, positive unconditional: 3586, negative: 1411, negative conditional: 1249, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34576, positive: 33165, positive conditional: 29579, positive unconditional: 3586, negative: 1411, negative conditional: 1249, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37784, positive: 33165, positive conditional: 0, positive unconditional: 33165, negative: 4619, negative conditional: 3208, negative unconditional: 1411, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 37784, positive: 33165, positive conditional: 0, positive unconditional: 33165, negative: 4619, negative conditional: 802, negative unconditional: 3817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37784, positive: 33165, positive conditional: 0, positive unconditional: 33165, negative: 4619, negative conditional: 802, negative unconditional: 3817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3637, positive: 3376, positive conditional: 0, positive unconditional: 3376, negative: 261, negative conditional: 99, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3637, positive: 3373, positive conditional: 0, positive unconditional: 3373, negative: 264, negative conditional: 0, negative unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 264, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 261, negative conditional: 99, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 486, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 422, negative conditional: 174, negative unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37784, positive: 29789, positive conditional: 0, positive unconditional: 29789, negative: 4358, negative conditional: 703, negative unconditional: 3655, unknown: 3637, unknown conditional: 99, unknown unconditional: 3538] , Statistics on independence cache: Total cache size (in pairs): 3637, Positive cache size: 3376, Positive conditional cache size: 0, Positive unconditional cache size: 3376, Negative cache size: 261, Negative conditional cache size: 99, Negative unconditional cache size: 162, Eliminated conditions: 2406, Maximal queried relation: 5, Independence queries for same thread: 10462 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.6s, Number of persistent set computation: 2350, Number of trivial persistent sets: 2208, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3748, positive: 3586, positive conditional: 0, positive unconditional: 3586, negative: 162, negative conditional: 0, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 45038, positive: 33165, positive conditional: 29579, positive unconditional: 3586, negative: 11873, negative conditional: 11711, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34576, positive: 33165, positive conditional: 29579, positive unconditional: 3586, negative: 1411, negative conditional: 1249, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34576, positive: 33165, positive conditional: 29579, positive unconditional: 3586, negative: 1411, negative conditional: 1249, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37784, positive: 33165, positive conditional: 0, positive unconditional: 33165, negative: 4619, negative conditional: 3208, negative unconditional: 1411, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 37784, positive: 33165, positive conditional: 0, positive unconditional: 33165, negative: 4619, negative conditional: 802, negative unconditional: 3817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37784, positive: 33165, positive conditional: 0, positive unconditional: 33165, negative: 4619, negative conditional: 802, negative unconditional: 3817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3637, positive: 3376, positive conditional: 0, positive unconditional: 3376, negative: 261, negative conditional: 99, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3637, positive: 3373, positive conditional: 0, positive unconditional: 3373, negative: 264, negative conditional: 0, negative unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 264, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 261, negative conditional: 99, negative unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 486, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 422, negative conditional: 174, negative unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37784, positive: 29789, positive conditional: 0, positive unconditional: 29789, negative: 4358, negative conditional: 703, negative unconditional: 3655, unknown: 3637, unknown conditional: 99, unknown unconditional: 3538] , Statistics on independence cache: Total cache size (in pairs): 3637, Positive cache size: 3376, Positive conditional cache size: 0, Positive unconditional cache size: 3376, Negative cache size: 261, Negative conditional cache size: 99, Negative unconditional cache size: 162, Eliminated conditions: 2406, Maximal queried relation: 5, Independence queries for same thread: 10462 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 812, positive: 791, positive conditional: 33, positive unconditional: 758, negative: 21, negative conditional: 18, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 33, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 33, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 0, positive unconditional: 791, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 794, positive: 791, positive conditional: 0, positive unconditional: 791, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 0, positive unconditional: 791, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, positive: 758, positive conditional: 0, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, positive: 757, positive conditional: 0, positive unconditional: 757, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 794, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 761, unknown conditional: 0, unknown unconditional: 761] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 758, Positive conditional cache size: 0, Positive unconditional cache size: 758, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 45, Number of trivial persistent sets: 39, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 761, positive: 758, positive conditional: 0, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 812, positive: 791, positive conditional: 33, positive unconditional: 758, negative: 21, negative conditional: 18, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 33, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 33, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 0, positive unconditional: 791, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 794, positive: 791, positive conditional: 0, positive unconditional: 791, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 794, positive: 791, positive conditional: 0, positive unconditional: 791, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 761, positive: 758, positive conditional: 0, positive unconditional: 758, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 761, positive: 757, positive conditional: 0, positive unconditional: 757, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 794, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 761, unknown conditional: 0, unknown unconditional: 761] , Statistics on independence cache: Total cache size (in pairs): 761, Positive cache size: 758, Positive conditional cache size: 0, Positive unconditional cache size: 758, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31493, positive: 23494, positive conditional: 20061, positive unconditional: 3433, negative: 7999, negative conditional: 7838, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24421, positive: 23494, positive conditional: 20061, positive unconditional: 3433, negative: 927, negative conditional: 766, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24421, positive: 23494, positive conditional: 20061, positive unconditional: 3433, negative: 927, negative conditional: 766, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26324, positive: 23494, positive conditional: 0, positive unconditional: 23494, negative: 2830, negative conditional: 1903, negative unconditional: 927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26324, positive: 23494, positive conditional: 0, positive unconditional: 23494, negative: 2830, negative conditional: 437, negative unconditional: 2393, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26324, positive: 23494, positive conditional: 0, positive unconditional: 23494, negative: 2830, negative conditional: 437, negative unconditional: 2393, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3490, positive: 3243, positive conditional: 0, positive unconditional: 3243, negative: 247, negative conditional: 86, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3490, positive: 3239, positive conditional: 0, positive unconditional: 3239, negative: 251, negative conditional: 0, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 251, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 247, negative conditional: 86, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 342, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 307, negative conditional: 132, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26324, positive: 20251, positive conditional: 0, positive unconditional: 20251, negative: 2583, negative conditional: 351, negative unconditional: 2232, unknown: 3490, unknown conditional: 86, unknown unconditional: 3404] , Statistics on independence cache: Total cache size (in pairs): 3490, Positive cache size: 3243, Positive conditional cache size: 0, Positive unconditional cache size: 3243, Negative cache size: 247, Negative conditional cache size: 86, Negative unconditional cache size: 161, Eliminated conditions: 1466, Maximal queried relation: 4, Independence queries for same thread: 7072 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.4s, Number of persistent set computation: 2110, Number of trivial persistent sets: 1967, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3594, positive: 3433, positive conditional: 0, positive unconditional: 3433, negative: 161, negative conditional: 0, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 31493, positive: 23494, positive conditional: 20061, positive unconditional: 3433, negative: 7999, negative conditional: 7838, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24421, positive: 23494, positive conditional: 20061, positive unconditional: 3433, negative: 927, negative conditional: 766, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24421, positive: 23494, positive conditional: 20061, positive unconditional: 3433, negative: 927, negative conditional: 766, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26324, positive: 23494, positive conditional: 0, positive unconditional: 23494, negative: 2830, negative conditional: 1903, negative unconditional: 927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26324, positive: 23494, positive conditional: 0, positive unconditional: 23494, negative: 2830, negative conditional: 437, negative unconditional: 2393, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26324, positive: 23494, positive conditional: 0, positive unconditional: 23494, negative: 2830, negative conditional: 437, negative unconditional: 2393, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3490, positive: 3243, positive conditional: 0, positive unconditional: 3243, negative: 247, negative conditional: 86, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3490, positive: 3239, positive conditional: 0, positive unconditional: 3239, negative: 251, negative conditional: 0, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 251, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 247, negative conditional: 86, negative unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 342, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 307, negative conditional: 132, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26324, positive: 20251, positive conditional: 0, positive unconditional: 20251, negative: 2583, negative conditional: 351, negative unconditional: 2232, unknown: 3490, unknown conditional: 86, unknown unconditional: 3404] , Statistics on independence cache: Total cache size (in pairs): 3490, Positive cache size: 3243, Positive conditional cache size: 0, Positive unconditional cache size: 3243, Negative cache size: 247, Negative conditional cache size: 86, Negative unconditional cache size: 161, Eliminated conditions: 1466, Maximal queried relation: 4, Independence queries for same thread: 7072 - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 30, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 478 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 532 ConstructedInterpolants, 0 QuantifiedInterpolants, 680 SizeOfPredicates, 1 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 13/21 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 2.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 575 NumberOfCodeBlocks, 575 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 630 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 1 NumberOfNonLiveVariables, 476 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 27/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-17 16:10:57,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Ended with exit code 0 [2022-10-17 16:10:58,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:58,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 16:10:58,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e3a2eb3-ef80-4d96-bcbb-3509ef44a8a9/bin/ugemcutter-Zs13ybUbV0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE